SENTRON
3WL1 Air Circuit Breakers
siemens.com/lowvoltage
Configu-
ration
Manual
Edition
04/2018
PH 01 2018 hl i dd 3PH_01_2018_umschlag_en.indd 3 20 07 2018 08 34 1320.07.2018 08:34:13
© Siemens AG 2018
© Siemens AG 2018
Siemens · 04/2018
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Technical data
2Introduction
3WL1 air circuit breakers/
non-automatic air circuit breakers
up to 6300 A (AC), IEC
General data
8
- Design
14
- Function
21
- Configuration
27
- Technical specifications
Configuration aids
36
- Characteristic curves
38
- Dimensional drawings
52
- Circuit diagrams
54
- More information
3WL1 non-automatic air circuit breakers
up to 4000 A (DC)
General data
55
- Technical specifications
Configuration aids
56
- Characteristic curves
56
- Dimensional drawings
57
- Circuit diagrams
58
- More information
© Siemens AG 2018
All dimensions in mm.
3WL1 Air Circuit Breakers
© Siemens AG 2018
2Siemens · 04/2018
Introduction
3WL1 Air Circuit Breakers
■
Overview
✓ Standard
-- Not available
❑ Optional
1) ETU15B cannot be used with 3WL circuit breakers, size III.
3WL air circuit breakers/non-automatic air circuit breakers
according to UL 489 up to 5000 A, see Catalog LV 16.
3WL air circuit breakers
3WL1 air circuit breakers/non-automatic air circuit breakers
up to 6300 A (AC), IEC
3WL1 non-automatic air circuit
breakers up to 4000 A (DC)
Size I, II, III III
Rated current In A630, 800, 1000, 1250,
1600, 2000, 2500, 3200, 4000,
5000, 6300
2000 1000, 2000, 4000
Number of poles 3-pole, 4-pole 4-pole 3-pole, 4-pole
Rated operational
voltage Ue
V AC
V DC
... 690/1000/1150
--
--
... 1000
Rated ultimate
short-circuit breaking
capacity at 500 V AC kA
Size I
55/66/85
Size II
66/80/100
Size II
130
Size III
100/150 (3-pole),
130 (4-pole)
20
(at 1000 V DC)
30/25/20
(at 300/600/1000 V DC)
Endurance Operating cycles Up to 20000 15000 10000 10000 15000
Mounting position
Degree of protection
With cover IP55 IP55
Without cover
(with door sealing frame)
IP41 IP41
Dimensions 3-/4-pole W mm 320/410 460/590 460/590 704/914 410 460/590
Fixed H mm 434 434 434 434 434 434
D mm 291 291 291 291 291 291
With-
drawable
H mm 465.5 465.5 465.5 465.5 -- 465.5
D mm 471 471 471 471 -- 471
Electronic Trip Units for 3WL circuit breakers
Type ETU15B1) ETU25B ETU27B ETU45B ETU76B
Overload protection ✓ ✓ ✓ ✓ ✓
Short-time delayed short-circuit protection -- ✓ ✓ ✓ ✓
Instantaneous short-circuit protection ✓ ✓ ✓ ✓ ✓
Neutral conductor protection -- -- ✓ ✓ ✓
Ground-fault protection -- -- ✓ ❑ ❑
Zone Selective Interlocking -- -- -- ❑ ❑
LCD, 4-line -- -- -- ❑--
LCD, graphic -- -- -- -- ✓
Communication -- -- -- ❑ ❑
Metering function Plus -- -- -- ❑ ❑
Selectable parameter sets -- -- -- -- ✓
Parameters freely programmable -- -- -- -- ✓
CubicleBUS -- -- -- ✓ ✓
Size III
Size II
Size I
NSE0_00061a
30° 30°
NSE0_00062a
30° 30°
NSE0_00061a
30° 30°
NSE0_00062a
30° 30°
NSS0_00535
H
WD
NSE0_01106a
NSE0_01107a
NSE0_01108a
NSE0_01109a
Rating Plug
NSE0_01111a
© Siemens AG 2018
3
Siemens · 04/2018
3WL1 Air Circuit Breakers
Introduction
Breaking capacity
1) Size II with In max 2500 A.
2) Size II with In max = 3200 A and In max = 4000 A.
3) At a rated voltage of 690 V, the Icw value of the circuit breaker cannot be
greater than the Icu or Ics value at 690 V.
4) Rated operational voltage Ue = 1150 V.
5) At Ue = 220 V DC
* Designations according to IEC 60947-2, Annex K.
6) At Ue = 300 V DC
7) At Ue = 600 V DC
8) At Ue = 1000 V DC
9) Values also apply to 690 V + 20% version with Z option "A16".
10)Rated operational voltage Ue = 1000 V.
Size III III
Type 3WL11 3WL12 3WL13
Breaking capacity N
S
H
N
S
H
C H
C
3-pole
C
4-pole
Rated short-circuit breaking capacity
Rated operational voltage Ue
up to 415 V AC
Icu kA 55 66 85 66 80 100 130 100 150 130
Ics kA 55 66 85 66 80 100 130 100 150 130
Icm kA 121 145 187 145 176 220 286 220 330 286
Rated operational voltage Ue
up to 500 V AC
Icu kA 55 66 85 66 80 100 130 100 150 130
Ics kA 55 66 85 66 80 100 130 100 150 130
Icm kA 121 145 187 145 176 220 286 220 330 286
Rated operational voltage Ue
up to 690 V AC
Icu kA 42 50 66 50 75 85 100 85 150 130
Ics kA 42 50 66 50 75 85 100 85 150 130
Icm kA 88 105 145 105 165 187 220 187 330 286
Rated operational voltage Ue
up to 1000 V/1150 V AC
Icu kA -- -- 509) -- -- 50 -- 50 704) 704)
Ics kA -- -- 509) -- -- 50 -- 50 704) 704)
Icm kA -- -- 1059) -- -- 105 -- 105 1544) 1544)
Rated short-time withstand current
Icw of the circuit breakers3)
0.5 s kA 55 66 75 66 80 100 100 100 100 100
1 s kA 42 50 66 55 66 85 100 100 100 100
2 s kA 29.5 35 46 39 46 651)/702) 70 80 80 80
3 s kA 24 29 44 32 44 501)/652) 65 65 65 65
Rated conditional short-circuit
current Icc of the non-automatic air
circuit breakers
Up to 500 V AC kA 55 66 75 66 80 100 130 100 100 100
Up to 690 V AC kA 42 50 66 50 75 85 100 85 100 100
Up to 1000 V/1150 V AC kA -- -- 509) -- -- 504) -- 5010) 704) 704)
Size III
Type 3WL11 3WL12
Breaking capacity DC DC
Rated short-circuit breaking capacity
Up to 220 V DC
Up to 300 V DC
Up to 600 V DC
Up to 1000 V DC
Icc
Icc
Icc
Icc
kA
kA
kA
kA
20
20
20
20
35
30
25
20
Rated short-time withstand current
Icw
0.5 s
1 s
2 s
3 s
kA
kA
kA
kA
--
20
--
--
--
355)/306)/257)/208)
--
--
NS H NSHCHC C
DC
DC
Circuit breakers with ECO breaking capacity N
Circuit breakers with standard breaking capacity S
Circuit breakers with high breaking capacity H
Circuit breakers with very high breaking capacity C
Non-automatic air circuit breakers with DC breaking capacity
These breaking capacities are indicated in the corresponding tables
by the symbols shown on orange backgrounds.
N
S
H
C
DC
Abbreviations*
(functions)
English long text Explanation
LLong Time Delay Overload protection
SShort Time Delay Short-circuit protection
(short-time delayed)
IInstantaneous Short-circuit protection
(instantaneous)
NNeutral Protection Neutral conductor protection
GGround Fault Ground-fault protection
© Siemens AG 2018
4Siemens · 04/2018
Introduction
3WL1 Air Circuit Breakers
3WL1 air circuit breakers:
3WL1 air circuit breakers offer highly flexible application and
consistent communication capability. With the 3WL1 circuit
breakers, just three sizes cover a performance range of 630 A to
6300 A. All models are characterized by the same design, the
same operation and the same comprehensive accessories.
18
17
16
20
15
21
23
22
24
14
19
6
45
7
8
9
2
25
10
11
12
13
3
1
NSE0_01887d
© Siemens AG 2018
5
Siemens · 04/2018
3WL1 Air Circuit Breakers
Introduction
Communication-capable circuit breakers (with ETU45B or ETU76B Electronic Trip Unit)
20
21
18
8
6
19
13 14 15 16 17 7
2
4 5
1 1 1
3
9
10
11
12
3VA molded case circuit breakers
3VL molded case circuit breaker
Electronic Trip Unit ETU / LCD ETU
COM800 breaker data server
COM100 breaker data server
COM20 Release 2 PROFIBUS module including Zone Selective Interlocking
BDA Plus with Ethernet interface
3WL air circuit breaker
COM15 PROFIBUS module
Breaker Status Sensor (BSS)
Electronic Trip Unit (ETU)
1
2
3
4
5
6
7
8
9
10
11
Metering function Plus
Zone Selective Interlocking module
Digital output module with relay contacts
Digital output module with relay contacts, configurable
Analog output module
Digital input module
Powerconfig commissioning and service software V2.3 and higher
PLC, e.g. SIMATIC S7
E.g. SIMATIC powerrate
7KM PAC measuring devices
12
13
14
15
16
17
18
19
20
21
NSE0_01105
PROFIBUS
Ethernet
PROFINET
3VA-line 3VA-line CubicleBUS
© Siemens AG 2018
6Siemens · 04/2018
Introduction
3WL1 Air Circuit Breakers
Characteristics
• Coordinated communication concept using the PROFIBUS
DP or MODBUS, ranging from 16 A to 6300 A with 3VL molded
case circuit breakers and 3WL air circuit breakers
• The high level of modularity of circuit breakers and accesso-
ries allows easy retrofitting of all communication components
• Significant additional benefits for the switchboard due to the
possibility of linking up external input and output modules to
the circuit breaker-internal CubicleBUS of the 3WL air circuit
breaker
• Innovative software products for parameterization, operation,
monitoring, and diagnostics of circuit breakers, both locally or
via PROFIBUS DP, MODBUS or Ethernet/Intranet/Internet
• Complete integration of the circuit breakers into the Totally
Integrated Power and Totally Integrated Automation solutions
Communication:
•For air circuit breakers with optional communication function
(ETU45B or ETU76B Electronic Trip Units), see Catalog LV 10.
•For accessories, see Catalog LV 10.
•For more information, see also Catalog LV 10, chapters
"Measuring Devices and Power Monitoring" and "Software".
1 1 1 2 4
35
9
876 10
11
3VA molded case circuit breakers
3WL air circuit breaker
COM16 MODBUS module
3VL molded case circuit breaker
COM21 MODBUS module
COM800 breaker data server
1
2
3
4
5
6
COM100 breaker data server
7KM PAC4200 measuring device
7KM PAC3100 measuring device
7KM PAC3200 measuring device
Powerconfig commissioning and service software V2.3 and higher
7
8
9
10
11
RS 485 with MODBUS RTU
Ethernet MODBUS TCP
3VA-line 3VA-line
I201_19162
© Siemens AG 2018
7
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Introduction
■
Benefits
Low space requirements
The 3WL air circuit breakers require very little space. Size I
devices (up to 2000 A) fit into a 400 mm wide switchboard panel.
Size III devices (up to 6300 A) are the smallest of their kind and
with their construction width of 704 mm fit into an 800 mm wide
switchboard panel.
Modular design
Components such as auxiliary releases, motorized operating
mechanisms, Electronic Trip Units, current sensors, auxiliary
circuit signaling switches, automatic reset devices, interlocks
and engagement operating mechanisms can all be exchanged
or retrofitted at a later stage, thus allowing the circuit breaker to
be adapted to new, changing requirements.
The main contact elements can all be replaced in order to
increase the endurance of the circuit breaker.
Retrofittable modules for Electronic Trip Units
Modularity is one of the main features of the new 3WL air circuit
breakers.
Special LCDs, ground-fault modules, rating plugs and commu-
nication modules for the Electronic Trip Units are available for
fast and easy retrofitting and adaptation to changing require-
ments.
Communication/metering functions
The use of modern communication-capable circuit breakers
opens up completely new possibilities in terms of start-up,
parameterization, diagnostics, maintenance and operation. This
allows many different ways of reducing costs and improving
productivity in industrial plants, buildings and infrastructure
projects to be achieved:
• Fast and reliable parameterization
• Timely information and response can prevent plant stoppages
• Effective diagnostics management
• Measured values are the basis for efficient load management,
for drawing up power demand profiles and for allocating
energy to cost centers
• Preventive maintenance reduces the risk of expensive plant
downtimes
• Metering function with a very wide range of measured values,
such as current, voltage, energy, power, etc.
• Can be used in 690 V networks
■
Application
• As incoming-feeder, distribution, tie, and outgoing-feeder
circuit breakers in electrical installations.
• For switching and protecting motors, capacitors, generators,
transformers, busbars and cables.
When connected to an electronic I&C system, the air circuit
breakers offer a wide range of options for monitoring network
events.
Air circuit breakers belong to the SENTRON product family of
protection, switching, measuring and monitoring devices and
can be used in applications between 16 A and 6300 A.
The AC devices are available as circuit breakers and
non-automatic air circuit breakers. DC devices are only available
as non-automatic air circuit breakers.
Standards
3WL air circuit breakers comply with:
• IEC 60947-2
• IEC 60947-2 Annex F / CISPR 11/22 Class B
• Climate-proof according to IEC 60068-2-30.
Versions with UL 489 also available, see Catalog LV 16.
Conductor cross-sections for AC
1) ETU76B with graphics display can be used up to max. 55 C.
2) At breaking capacity H: 1600 A up to 70 C
3) With rear vertical connections
4) Size II, 3-pole, in fixed-mounted version
5) Minimum main conductor cross-sections for 4-pole withdrawable circuit
breakers: 4 × 120 mm × 10 mm
Size III
Type Up to
3WL11 10
3WL11 12 3WL11 16 3WL11 20 3WL12 08 3WL12 10 3WL12 12 3WL12 16 3WL12 20
Permissible load
for withdrawable
versions
at rear horizontal
main circuit
connections
•Up to 55 C
(Cu bare)
•Up to 60 C
(Cu bare)1)
•Up to 70 C
(Cu painted black)1)
A
A
A
1000
1000
1000
1250
1250
1210
1600
1600
14902)
2000
1930
1780
800
800
800
1000
1000
1000
1250
1250
1250
1600
1600
1600
2000
2000
2000
Main conductor
minimum
cross-sections
• Copper bars,
bare
• Copper bars,
painted black
Unit(s)
mm2
Unit(s)
mm2
1 ×
60 × 10
1 ×
60 × 10
2 ×
40 × 10
2 ×
40 × 10
2 ×
50 × 10
2 ×
50 × 10
3 ×
50 × 10
3 ×
50 × 10
1 ×
50 × 10
1 ×
50 × 10
1 ×
60 × 10
1 ×
60 × 10
2 ×
40 × 10
2 ×
40 × 10
2 ×
50 × 10
2 ×
50 × 10
3 ×
50 × 10
3 ×
50 × 10
Size II III
Type 3WL12 25 3WL12 32 3WL12 403) 3WL13 40 3WL13 50 3WL13 633)
Permissible load
for withdrawable
versions
at rear horizontal
main circuit
connections
•Up to 55 C
(Cu bare)
•Up to 60 C
(Cu bare)1)
•Up to 70 C
(Cu painted black)1)
A
A
A
2500
2500
2280
3200
3020
2870
39504)
3810
3600
4000
4000
4000
5000
5000
5000
5920
5810
5500
Main conductor
minimum
cross-sections
• Copper bars,
bare
• Copper bars,
painted black
Unit(s)
mm2
Unit(s)
mm2
2 ×
100 × 10
2 ×
100 × 10
3 ×
100 × 10
3 ×
100 × 10
4 ×
120 × 10
4 ×
100 × 105)
4 x
100 x 10
4 ×
100 × 10
6 x
100 x 10
6 ×
100 × 10
6 x
120 x 10
6 ×
120 × 10
© Siemens AG 2018
8Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
■
Design
Overview of 3WL circuit breakers/non-automatic air circuit breakers
Versions
• Rated currents: 630 A to 6300 A
• 3 sizes for different rated current ranges (see diagram above)
• 3 and 4-pole versions
• Rated operational voltage up to 690 V AC and 1000 V DC.
Special versions up to 1000 V AC and 1150 V AC available
• 4 different breaking capacities from 55 kA to 150 kA for AC
applications and one breaking capacity for DC applications
The 3WL circuit breakers are supplied complete with operating
mechanism (manual operating mechanism with mechanical
closing), Electronic Trip Unit and auxiliary switches
(2 NO contacts + 2 NC contacts in the standard version), and
can be equipped with auxiliary releases.
Installation methods
Fixed-mounted or withdrawable versions
Ambient temperatures
3WL circuit breakers are suitable for use in any climate in
accordance with IEC 60068-2-30. They are intended for use in
enclosed rooms in which no severe operating conditions (such
as dust, caustic vapors, hazardous gases) prevail.
When installed in dusty and damp areas, suitable enclosures
must be provided.
Coordinated dimensions
The dimensions of 3WL circuit breakers only differ in terms of the
width of the device which depends on the number of poles and
the size.
Due to the nature of the design, the dimensions of devices with
a withdrawable version are determined by the dimensions of the
guide frames, which are slightly larger.
Non-automatic air circuit breakers
One special version of circuit breaker is utilized as a non-auto-
matic air circuit breaker. The non-automatic air circuit breakers
are designed without an electronic trip system and do not
perform any protection functions for the plant.
One potential application is the use as a tie-breaker in systems
with parallel infeeds.
The versions and features can be selected according to those of
the circuit breakers.
Operating mechanisms
The circuit breakers are available with various optional operating
mechanisms:
• Manual operating mechanism with mechanical closing
(standard design)
• Manual operating mechanism with mechanical and electrical
closing
• Motorized operating mechanism with mechanical and
electrical closing
The operating mechanisms with electrical closing are suitable
for synchronization tasks.
NSE0_00887q
HS
100
H
85
80
66
460 / 590 460 / 590
291 / 291 385 / 385
434 / 434 460 / 460
320 / 410 320 / 410
291 / 291 385 / 385
434 / 434 460 / 460
H
100
C
150 (3p)
130 (4p)
704 / 914 704 / 914
291 / 291 385 / 385
434 / 434 460 / 460
SN
66
55
800
1000
1250
1600
2000
630
800
1000
1250
1600
2000
2500
3200
4000
4000
5000
6300
N
30
DC
20
DC
The dimension for the depth of the circuit breaker is from the circuit breaker rear to the inner surface of the closed switchgear door.
Circuit breaker Breaking capacity Dimensions
Fixed-mounted, With-
drawable
3-/4-pole 3-/4-pole
Width
Depth
Height
Width
Depth
Height
Width
Depth
Height
Size IIISize I Size II
at 500 V AC (kA) or
cu
rated current (A)
n max
at 300 V DC (kA)
cc
© Siemens AG 2018
9
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Main circuit connections – connection types
Main circuit connections
All circuit breakers are equipped with horizontal main circuit
connections on the rear for up to 5000 A as standard (horizontal
connection to busbars). Exception: Circuit breakers of size II
with max. rated current 4000 A.
Circuit breakers with a max. rated current of 6300 A and circuit
breakers of size II with a max. rated current of 4000 A are
equipped with vertical main circuit connections
(for upright busbars).
The following options are available, with all combinations
of top and bottom connections possible:
• Accessible from the front, single hole (for vertically installed
busbars)
• Accessible from the front, double hole (holes according to
DIN 43673) (for vertically installed busbars)
• At the rear, vertical (for vertically installed busbars)
• Connecting flange (for direct connection to guide frames up to
4000 A)
Connection options for auxiliary circuit connections
Auxiliary circuit connections
The type of connection for the auxiliary switches depends on the
type of installation:
• Withdrawable version: The internal auxiliary switches are
connected to the male connector on the switch side. When
fully inserted, the connector makes a connection with the
sliding contact module (see the graphic "Guide frame" under
"Design") in the guide frame. Various adapters can then be
used to complete the wiring (see the graphic "Connection
options for auxiliary circuit connections").
• Fixed-mounted version: In this case the auxiliary supply
connectors are engaged directly onto the circuit breaker. The
connectors are equipped with coding pins that prevent them
being mistakenly interchanged
Operator panel
The operator panel is designed to protrude from a cutout in the
door providing access to all control elements and displays with
the control cabinet door closed.
The operator panels for all circuit breakers (fixed-mounted/
withdrawable versions, 3-/4-pole) are identical. The operator
panel ensures degree of protection IP41.
Safety and reliability
To protect the circuit breakers and system against unauthorized
switching and to protect the maintenance and operator person-
nel, the system contains many locking devices. Others can be
retrofitted.
Other safety features include:
• Infeed from above or below, as required
• Locking of the guide frame with the circuit breaker removed,
as standard
• Locking of the withdrawable circuit breaker against
movement, as standard
• High degree of protection with cover IP55
• Mechanical reclosing lockout after overload or short-circuit
tripping as standard
• The circuit breaker is always equipped with the required
number of auxiliary supply connectors
Standard version
3WL circuit breakers are equipped with the following features as
standard:
• Mechanical ON and OFF button
• Manual operating mechanism with mechanical closing
• Switching position indication
• Ready-to-close indicator
• Store status indicator
• Auxiliary switch 2 NO + 2 NC
• Rear horizontal main circuit connections for fixed-mounted
and withdrawable versions up to 5000 A,
and rear vertical main circuit connections for 6300 A
applications and size II with 4000 A
• For 4-pole circuit breakers, the fourth pole (N) is installed on
the left and is 100% loadable with the rated current
• Contact erosion indicator for the main contacts
• Auxiliary circuit plug-in system with SIGUT screw terminals
Delivery inclusive of all auxiliary supply connectors as per
internal equipment including coding device for the prevention
of incorrect installation of auxiliary supply connectors for
fixed-mounted circuit breakers
• Mechanical "tripped" indicator for electronic trip system
• Mechanical reclosing lockout after tripping operation
• Operator panel cannot be taken off with the circuit breaker in
the ON position
Additional features of the withdrawable version:
• Main contacts:
Laminated receptacles in the guide frame,
blade contacts on the withdrawable circuit breaker
• Position indicator in the operator panel of the withdrawable
circuit breaker
• Captive manual crank handle for moving the withdrawable
circuit breaker
• Guide frame with guide rails for easy moving of the
withdrawable circuit breaker
• The withdrawable circuit breaker can be locked to prevent it
being pushed out of position
• The withdrawable circuit breaker cannot be moved when it is
in the ON position
• Coding of the rated current between the guide frame and the
withdrawable circuit breaker
Standards
3WL circuit breakers comply with:
• IEC 60947-2
• Climate-proof according to IEC 60068-2-30.
Versions acc. to UL 489 also available, see Catalog LV 16.
For further standards, see
www.siemens.com/lowvoltage/product-support or
www.siemens.com/lowvoltage/configurators.
Horizontal
connection
Front connection with
single hole or double hole
Vertical
connection
NSE0_00967b
NSE0_00968b
NSE0_00969b
NSE0_00979a
Fixed-mounted circuit breakers
Horizontal
connection
Front connection with
single hole or double hole
Vertical
connection
Flange
connection
NSE0_00967b
NSE0_00970b
NSE0_00971b
NSE0_00972b
NSE0_00973b
Withdrawable circuit breaker, withdrawable guide frame
Connection using
screw connection
method (SIGUT)
(standard)
Screwless
connection method
(tension spring)
(optional)
NSE0_00975b
NSE0_00976b
© Siemens AG 2018
10 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Withdrawable short-circuit, grounding, and bridging units
Portable positively-driven grounding and short-circuit devices
are used for the disconnected system sections to verify isolation
from the supply at the workplace.
Withdrawable grounding units allow simple and comfortable
grounding. They are simply inserted into the guide frames in
place of the corresponding withdrawable circuit breakers. This
ensures that these devices are always first connected with the
grounding electrode and then with the components to be
grounded.
The grounding contacts are fitted to the side of the breaker
enclosure and establish the connection when inserted into the
guide frame.
All withdrawable contacts are short-circuited and grounded on
delivery.
Electrically skilled persons can easily convert them to
withdrawable bridging units by following the enclosed
instructions.
In addition, the withdrawable unit can be adapted to various
rated currents of one size.
Withdrawable short-circuit and grounding unit
The withdrawable short-circuit and grounding unit consists of a
breaker enclosure with blade contacts which are connected with
the short-circuiting link.
Depending on the version, the short-circuiting links are arranged
at the top or bottom. The grounding and short-circuit
connections are established when the device is inserted.
It must be ensured that the side to be short-circuited and
grounded is not live. For this reason it is recommended that the
withdrawable unit is only cranked in when the door is closed.
Withdrawable bridging unit
The withdrawable bridging unit consists of a breaker enclosure
in which all disconnection components and the operating
mechanism have been replaced with simple connections
between the upper and lower contacts.
Auxiliary releases
Up to two auxiliary releases can be installed at the same time.
The following are available for selection:
1 shunt release
or 1 undervoltage release
or 2 shunt releases
or 1 shunt release
+ 1 undervoltage release
Signaling switches for auxiliary releases
One signaling contact is used for each auxiliary release to
determine the positions of the auxiliary releases.
Shunt releases
When the operational voltage is connected to the shunt release,
the circuit breaker is opened immediately. The shunt release is
available in the versions 5% OP for overexcitation and 100% OP
for permanent excitation. This means that it is also possible to
block the circuit breaker against being jogged into closing.
An energy storage device for shunt releases allows the circuit
breaker to be opened even if the control voltage is no longer
available.
Undervoltage releases
The undervoltage release causes the circuit breaker to be
opened if the operational voltage falls below a certain value or is
not applied. The circuit breaker cannot be closed manually or by
means of an electrical ON command if the undervoltage release
is not connected to the operational voltage. The undervoltage
release has no delay as standard. A delay can be set by the
customer in the range between td < 80 ms and td < 200 ms.
In addition, an undervoltage release with a delay in the range
from 0.2 to 3.2 s is available.
Closing coil
The closing coil is used to close the circuit breaker electrically
by means of a local electrical "ON" command or by remote
means.
Motorized operating mechanism
The operating mechanism is used to charge the spring energy
store automatically.
The operating mechanism is activated if the spring energy store
has been discharged and the control voltage is available.
It is switched off automatically after charging. This does not
affect manual operation of the spring energy store.
Indicators, signals and control elements
Motor cutout switch
Selector switch for switching off the motorized operating
mechanism (automatic charging).
Operating cycles counter
The motorized operating mechanism can be supplied with a
5-digit operating cycles counter. The display is incremented
by "1" as soon as the spring energy store is fully charged.
Resetting of the manual tripped signal
When the circuit breaker has tripped, this is indicated by the
protruding red mechanical tripped indicator on the ETU. When
the mechanical tripped indicator is activated, the tripping
solenoid and tripped signal are reset. If this manual display is to
be reset remotely, the reset button can be equipped with a reset
solenoid.
This option allows the circuit breaker to be reset both manually
and electrically.
Automatic resetting of reclosing lockout
When the ETU is tripped, reclosing of the circuit breaker is
prevented until the trip unit is either electrically or manually reset.
If the "Automatic resetting of reclosing lockout" option is used,
the pre-tensioned circuit breaker is ready to close immediately
after tripping. Resetting the manual "tripped" indicator is not
included in this option.
Tripped signaling switch
If the circuit breaker has tripped due to an overload, short-
circuit, ground fault or extended protection function, the tripped
signaling switch can indicate this. This signaling switch is
available as an option. If the circuit breaker is used for
communication, this option is supplied as standard.
Ready-to-close signaling switch
The 3WL circuit breakers are equipped with an optical ready-to-
close indicator as standard. In addition, the ready-to-close
status can be transmitted by means of a signaling switch as an
option. If the switch is used for communication, this signaling
switch is supplied as standard.
Short-time current of the
grounding contact
kA 15 (500 ms)
Rated operational voltage V 1000 (690 for size I)
Standards DIN VDE 0683
© Siemens AG 2018
11
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Circuit breakers
Guide frames
NSE0_00965b
1
2
3
4
5
6
7
8
9
11
14
15
12
13
10
28
27
26
25
24
22
21
20
19
17
16
18
23
Arc chute
Carrying handle
Labeling plates
Motor cutout switch (option) or
"Electrical ON" (option)
Type plate for circuit breaker
Spring charge indicator
"Mechanical ON" button
Rated current indication
Positioning pictogram
Operating cycles counter (option)
Hand-operated lever
Crank handle
Withdrawable unit drive shaft
Equipment plate
Grounding connection
Position indicator
Table for ground-fault protection
Safety lock for crank handle (option)
Mechanical unlocking of crank handle
(option)
Electronic trip unit
Rating plug
"Mechanical OFF" button or
"EMERGENCY-STOP"
mushroom pushbutton (option)
Ready-to-close indicator
Contact position indicator
"Tripped" indicator (reset button)
"Secure OFF" locking device (option)
Operator panel
Male connector for auxiliary connections
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
NSE0_00966b
18
1
2
3
5
6
7
8
9
4
17
15
12
11
10
16
14
13
Arc chute cover (option)
Blow-out openings
Opening for crane hook
Shutter (option)
Locking device (shutter) (option)
Type plate for guide frame
Isolating contacts
Ground terminal Ø14 mm
Locking device for racking rail
Locking device against movement when
cabinet door is open (option)
Door interlock for guide frame (option)
Racking rail
Factory-set rated current coding
Sliding contact for breaker grounding (option)
Equipment-dependent coding (option)
Shutter actuator (option)
Position indicator switch (option)
Sliding contact module for auxiliary
conductors (number depends on equipment)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
© Siemens AG 2018
12 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Locking devices
Locking device in OFF position
This function prevents closing of the circuit breaker and
complies with the requirements for main control switches
according to EN 60204 (VDE 0113) – supply disconnecting
device. This lockout only affects this circuit breaker.
If the circuit breaker is replaced, closing is no longer prevented
unless the new circuit breaker is also protected against
unauthorized closing.
To activate the locking device, the circuit breaker must be
opened. The locking device is disabled when the circuit breaker
is closed. The lock is only activated when the key is removed.
The safety key can be removed only in the "OFF" position.
Locking device for "Electrical ON"
(see graphic "Circuit breakers")
This prevents unauthorized electrical closing from the operator
panel. Mechanical closing and remote closing remain possible.
The lock is only activated when the key is removed.
Locking device for "Mechanical ON"
(see graphic "Circuit breakers")
This prevents unauthorized mechanical closing. The mechanical
ON button can only be activated if the key is inserted (key
operation). Closing with the "Electrical ON" button and remote
closing remain possible. The lock is only activated when the key
is removed.
"Safe OFF" circuit breaker-independent locking device against
unauthorized closing
This special breaker-independent function for withdrawable
circuit breakers prevents closing and fulfills the requirements for
main control switches to EN 60204 (VDE 0113) – supply discon-
necting device. Unauthorized closing remains impossible even
after the circuit breaker has been replaced.
To activate the lock, the circuit breaker must be opened. The
locking device is disabled when the circuit breaker is closed.
The lock is only activated when the key is removed. The safety
key can be removed only in the "OFF" position.
Locking device for crank handle
Prevents removal of the crank. The circuit breaker is protected
against movement. The lock is only activated when the key is
removed.
Locking device for "Mechanical OFF"
Prevents unauthorized mechanical opening from the operator
panel. The "Mechanical OFF button" can only be activated if the
key is inserted (key operation). Remote opening remains
possible. The lock is only activated when the key is removed.
Locking device for hand-operated lever
The hand-operated lever can be locked with a padlock. The
spring energy store cannot be charged manually.
Locking device against resetting the "tripped" indicator
A lockable cover prevents manual resetting of the "tripped"
indicator after tripping due to overcurrent. This locking device is
supplied together with the transparent cover option for
Electronic Trip Units.
Sealing devices
Sealing cap for "Electrical ON" button
The "Electrical ON" button is equipped with a sealing cap as
standard.
Sealing cap for "Mechanical ON" and "OFF" button
The locking set contains covering caps which can be sealed.
Sealing device for Electronic Trip Units
The transparent cover can be sealed. The parameter setting
sections are covered to prevent unauthorized access. Openings
allow access to the query and test button.
Locking mechanisms
Locking mechanism against movement for withdrawable circuit
breakers when the control cabinet door is open
The crank handle is blocked when the control cabinet door is
open and cannot be removed. The withdrawable circuit breaker
cannot be moved. The lock only affects the inserted crank
handle.
Locking of the control cabinet door
The control cabinet door cannot be opened if
• the fixed-mounted circuit breaker is closed (the blocking
signal is transmitted via the Bowden cable) or
• the withdrawable circuit breaker is in the connected position
Blocking mechanism using "Mechanical ON" and "OFF" button
The "Mechanical ON" and "OFF" buttons are covered with a cap
which only allows actuation with a tool. These cover caps are
part of the interlocking set.
Optional equipment for guide frames
Shutters
The sealing strips of the shutter seal the laminated contacts of
the guide frame when the withdrawable circuit breaker is
removed and therefore implement touch protection.
The sealing strips can be manually opened using the strip
levers.
The position of the sealing strips can be locked in various
positions using padlocks for securing against tampering.
© Siemens AG 2018
13
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Rated current coding unit between circuit breaker and guide
frame
Withdrawable circuit breakers and guide frames are equipped
with a rated current coding unit as standard.
This ensures that only circuit breakers whose blade contacts are
suited to the laminated contacts of the guide frame can be
inserted into a guide frame (see diagram below).
Rated current coding unit between circuit breaker and guide frame
Equipment-dependent coding
Withdrawable circuit breakers and guide frames can be
retrofitted with an equipment-dependent coding unit.
This allows different designs of circuit breakers and guide
frames to be uniquely assigned. If the circuit breaker and guide
frame have been assigned different codes, the circuit breaker
cannot be inserted.
36 different coding options can be selected.
Position signaling switches for guide frame
The guide frame can be equipped with position signaling
switches. These can be used to determine the position of the
circuit breaker in the guide frame.
Two versions are available:
• Option 1
Connected position 1 CO contact,
Test position 1 CO contact,
Disconnected position 1 CO contact
• Option 2
Connected position 3 CO contacts,
Test position 2 CO contacts,
Disconnected position 1 CO contact
Positions of the withdrawable circuit breaker in the guide frame
Phase barriers
The plant engineering company can manufacture phase
barriers made of insulating material for the arcing fault barriers.
The rear panel of the fixed-mounted circuit breakers or guide
frames are equipped with guide grooves.
Arc chute cover
The arc chute cover is available as optional equipment for the
guide frame. It protects switchboard components which are
located directly above the circuit breaker.
Door sealing frame and cover
3WL circuit breakers have degree of protection IP20 as
standard. However, if the switchboard is to be equipped with a
higher degree of protection, a door sealing frame with IP41 and
a cover with IP55 are available.
NSE0_01031b
Coding pin on racking rail
in guide frame
Guide frame, interior left-hand side;
interior right-hand side similar
Racking rail
1
2
3
1
2
3
NSE0_01032b
4
5
Withdrawable circuit breaker
right-hand side; left-hand side similar
Coding pin on guide frame
4
5
Representation Position indicator Main circuit Auxiliary circuit Cabinet door Shutter
Maintenance position Disconnected Disconnected Open Closed
Disconnected position Disconnected Disconnected Closed Closed
Test position Disconnected Connected Closed Closed
Connected position Connected Connected Closed Open
NSE0_01033a
1
2
4
Auxiliary circuit
Main circuit
Shutter
1
2
4
CONNECT
TEST
DISCON
NSE0_01037
NSE0_01034a
3
Control cabinet
door
3
CONNECT
TEST
DISCON
NSE0_01038
NSE0_01035a
CONNECT
TEST
DISCON
NSE0_01039
NSE0_01036a
CONNECT
TEST
DISCON
NSE0_01040
© Siemens AG 2018
14 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
■
Function
ETU15B ETU25B ETU27B
Functions of the Electronic Trip Units
Basic protection functions
Overload protection L✔ ✔ ✔
Short-time delayed short-circuit protection S -- ✔✔
Instantaneous short-circuit protection I✔ ✔ ✔
Neutral conductor protection N -- -- ✔
Ground-fault protection G-- -- ✔
Additional functions
Neutral conductor protection (can be switched on/off) -- -- ✔
N-conductor protection adjustable -- -- --
Short-time delay short-circuit protection (can be switched on/off) -- -- --
Instantaneous short-circuit protection (can be switched on/off) -- -- --
Thermal memory can be switched on/off -- -- --
Load monitoring -- -- --
Short-time delay short-circuit protection switchable to I2t-- -- --
Instantaneous short-circuit protection adjustable ✔-- --
Overload protection switchable to I4t-- -- --
Overload protection can be switched on/off -- -- --
Selectable parameter sets -- -- --
Parameterization and display
Parameterization through rotary coding switches (10 steps) ✔ ✔ ✔
Parameterization through communication (absolute values) -- -- --
Parameterization through user interface of ETU (absolute values) -- -- --
Parameterization of the extended protection functions -- -- --
LCD alphanumerical -- -- --
LCD graphical -- -- --
Metering function
Metering function Plus -- -- --
Communication
CubicleBUS -- -- --
Communication through PROFIBUS DP -- -- --
Communication through MODBUS -- -- --
Communication via Ethernet -- -- --
✔Standard -- Not available ❑Optional
Note
Detailed information about the functions of the Electronic Trip Units is given in the following.
NSE0_00880b
NSE0_00950c
NSE0_00880b
R
s d
Js d
N S E 0 _ 0 0 9 5 1 b
NSE0_00881b
R
s d
Js d
g
Jg
N S E 0 _ 0 0 9 5 2 b
NSE0_00882b
© Siemens AG 2018
15
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
ETU45B ETU76B
✔ ✔
✔✔
✔ ✔
✔✔
❑ ❑
✔ ✔
✔✔
✔ ✔
✔✔
✔ ✔
✔✔
✔ ✔
✔✔
✔ ✔
-- ✔
-- ✔
✔--
-- ✔
-- ✔
❑❑
❑--
-- ✔
❑ ❑
✔ ✔
❑❑
❑ ❑
❑❑
NSE0_00883b
=
12
Rating Plug
IR
tR
Isd
tsd
Ii
tg
Ig
NSE0 00953a
IR
tR
Isd
tsd
Ii
tg
Ig
NSE0 00953a
NSE0_00886c
ETU76B
© Siemens AG 2018
16 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Electronic Trip Units (ETU)
The Electronic Trip Unit is controlled by a microprocessor and
operates independently of an auxiliary voltage. It enables
systems to be adapted to the different protection requirements
of distribution systems, motors, transformers and generators.
Communication capability
The international standardized PROFIBUS DP or MODBUS can
be used to transmit data such as current values, switching
states, causes of tripping etc. to central computers.
Data acquisition and energy management are possible in
conjunction with the Plus metering function.
An internal circuit breaker data bus allows switchboard panel
communication between the circuit breaker and typical
secondary devices in the circuit breaker section:
• Control of analog displays
• Facility to test the communication build-up with circuit
breakers
• Display of tripping state and tripping reasons
• Input module for reading in further switchboard panel signals
and for transmission of these signals to the PROFIBUS DP or
MODBUS
• Various output modules for displaying measured values
This means that it is not only possible to monitor the device
remotely, but also to transmit current values from the entire
system and perform switching operations remotely.
I2t and I4t characteristic curves for overload protection
The best protection for the whole switchboard is achieved by
setting the tripping characteristic curve to an optimum value.
In order to achieve optimal discrimination for upstream fuses or
medium-voltage protection systems, the inclination of the
characteristic curve can be selected for the overload range.
The overload protection L (long time protection) for the ETU45B
and ETU76B Electronic Trip Units allows the curve to be
switched between the I2t and I4t characteristics.
The I4t characteristic improves discrimination for downstream
circuit breakers and fuses.
Electronic Trip Units ETU
High emphasis has also been placed on modularity during the
development of the Electronic Trip Units. These are some of the
modules which can be easily retrofitted at any time:
• Ground-fault protection module
• Communication
• Metering function
•Display
• Rating plug
This allows quick adaptation to new local power supply
conditions. In addition, innovative functions have been included
in the ETUs.
Rating plug
The rating plug is an exchangeable module which allows the
user to reduce the rated device current so as to adapt it
optimally to the plant; e.g. if a new plant section is put into
operation. The rating plug must be selected to correspond to the
rated current of the plant.
Example of configuration for ETU45B
Metering function Plus
Selectable parameters
In the case of quick changes of power supply conditions,
e.g. for switchover from transformer to generator operation or if
a section of the supply is disconnected when the shift changes,
3WL circuit breakers allow the relevant protection parameters to
be quickly adapted to the new conditions.
The ETU76B contains two independent tripping characteristics
(parameter sets). The switchover is completed within 200 ms
and is performed with the help of an external signal.
Ground-fault
protection
module
(retrofittable)
Tripped indicator/
Reset button
LCD alphanumeric
with 15° inclination
and rotatable
through 180°
Slide switch for
selectable overload
characteristic
Rating plug
© Siemens AG 2018
17
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
ETU15B Electronic Trip Unit
ETU25B Electronic Trip Unit
NSE0_00954b
Option: safety lock
prevents pressing of
reset button after
overcurrent release
Indicator: fault in
overcurrent release
Sealing ring
Test socket
Mechanical RESET
for reclosing lockout
and mechanical
tripped indicator
Rotary switch for setting
value, overload release
Rotary switch for setting
value, instantaneous
short-circuit release
Indicator: overload alarm
Indicator: overcurrent
release activated
NSE0_00955b
Rating Plug
ETU25B
Option: safety lock
prevents pressing of
reset button after
overcurrent release
Indicator: fault in
overcurrent release
Sealing ring
Test socket
Mechanical RESET
for reclosing lockout
and mechanical
tripped indicator
Rotary switch for setting
value, overload release
Rotary switch for setting
value, instantaneous
short-circuit release
Indicator: overcurrent
release activated
Indicator: overload alarm
Query pushbutton
Test pushbutton Clear pushbutton
Indicator: cause of release
Rotary switch for delay,
short-circuit release
Rated current module
Short-circuit protection
fixed setting
© Siemens AG 2018
18 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
ETU27B Electronic Trip Unit
ETU45B Electronic Trip Unit
NSE0_00956c
Rating Plug
N
OFF
OFF ON
ETU27B
Rotary switch for delay,
ground-fault protection
N-conductor protection
on/off
value, ground-fault protection
Rotary switch for setting
Rated current module
Option: safety lock
prevents pressing of
reset button after
overcurrent release
Indicator: fault in
overcurrent release
Sealing ring
Test socket
Clear pushbutton
Indicator:
cause of release
Rotary switch for delay,
short-circuit release
Mechanical RESET
for reclosing lockout
and mechanical
tripped indicator
Rotary switch for setting
value, overload release
Rotary switch for setting
value, instantaneous
short-circuit release
Indicator: overcurrent
release activated
Indicator: overload alarm
Query pushbutton
Test pushbutton
Short-circuit protection
fixed setting
=
12
g
NSE0_00957c
Rating Plug
OFF ON
1
1
1
1
1
SI
ETU45B
t/t
42
t/t
2
gg
Option: safety lock
prevents pressing of
reset button after
overcurrent release
Mechanical RESET
for reclosing lockout
and mechanical
tripped indicator
Indicator: fault in
overcurrent release
Sealing ring
Test socket
Rotary switch for setting
value, overload release
Rotary switch for setting
value, instantaneous
short-circuit release
Overload alarm
Overcurrent release
activated
Clear pushbutton
Indicator: cause of release
Rotary switch for delay,
short-circuit release
Rated current module
Selector for
ground-fault protection
Rotary switch for delay,
ground-fault protection
N-conductor protection on/off
Scroll up
COMMUNICATION
EXPANDED
Indicators:
Rotary switch for setting
value, short-circuit
protection
Rotary switch for setting
value, ground-fault
protection
Rotary switch for setting
value, ground-fault alarm
Test pushbutton
Query pushbutton
Option: alphanumeric display
Scroll down
Thermal memory on/off
Setting value
N-conductor overload
Indicator: ground-fault tripped
Indicator: ground-fault alarm
Option: ground-fault module
Rotary switch for delay,
overload release
Transfer of overload
characteristic
© Siemens AG 2018
19
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
ETU76B Electronic Trip Unit
Ground-fault protection Ground-fault releases "G" sense fault currents that flow to ground
and that can cause a fire in the plant. Multiple circuit breakers
connected in series can have their delay times adjusted so as to
provide graduated discrimination.
When setting the parameters for the Electronic Trip Unit it is
possible to choose between "alarm" and "trip" in the event that
the set current value is exceeded. The reason for tripping is
indicated by means of an LED when the query button is
activated.
The ETU45B and ETU76B Electronic Trip Unit versions can be
retrofitted with a ground-fault protection module. This ground-
fault protection function is integrated in ETU27B Electronic Trip
Units.
Rating Plug
NSE0_00960b
ETU76B
Option: safety lock
prevents pressing of
reset button after
overcurrent release
Mechanical RESET
for reclosing lockout
and mechanical
tripped indicator
Overload alarm
Overcurrent release
activated
COMMUNICATION
EXPANDED
Indicators:
Query pushbutton
Test pushbutton
Fields for noting
setting values
Indicator: fault in
overcurrent release
Test socket
Clear pushbutton
Ground-fault tripped
Indicators:
Fields for noting
setting values
Ground-fault alarm
Control keys for setting
the release parameters
Indicator: cause of release
Rated current module
Graphical display
Option: ground-fault module
GFM AT 45B ground-fault module
GFM AT 55B-76B ground-fault module
Selector for
ground-fault
detection
Rotary switch
for setting value
ground-fault alarm
Ground-fault
alarm
Rotary switch
for setting
value, ground-
fault protection
delay tg/ tg
Rotary switch
for setting
value,
ground-fault
protection
Ground-fault
tripped
Indicators:
2
NSE0_00962
NSE0_00964a
Field for
noting
transfer
ground-fault
detection
Fields for
noting setting
values
Ground-fault
alarm
Fields for
noting setting
values
Ground-fault
tripped
Indicators:
© Siemens AG 2018
20 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Measurement method
Vectorial summation current formation (measurement method 1)
The three phase currents and the N-conductor current are
measured directly.
The Electronic Trip Unit determines the ground-fault current by
means of vectorial summation current formation for the three
phase currents and the N-conductor current.
Direct measurement of the ground-fault current
(measurement method 2)
A standard current transformer with the following data
is used for measurement of the ground-fault current:
1200 A/1 A, Class 1 (the internal load of the 3WL circuit breaker
is 0.11 ). The current transformer can be installed directly in the
grounded neutral point of a transformer.
3-pole circuit breakers, current transformers in the N-conductor
3-pole circuit breakers, current transformers in the grounded neutral
point of the transformer
4-pole circuit breakers, current transformers in the grounded neutral
point of the transformer
Setting
How the module is set depends on the measurement
method used (see above):
Measurement method 1: in position .
Measurement method 2: in position .
This setting can be implemented for the Electronic Trip Unit
version ETU76B with Menu/Comm.
Ground-fault protection with I 2t characteristic curve
With the exception of the ETU27B Electronic Trip Unit, all
versions of the ground-fault modules are supplied with
an I2t characteristic curve which can be activated.
Selection criteria for 3WL circuit breakers
Basic criteria for selecting circuit breakers are:
• Max. short-circuit current at place of installation of circuit
breaker I
k max .
This value determines the short-circuit breaking capacity or
short-circuit current carrying capacity of the circuit breaker.
• It is compared with the value Icu, Ics, Icw of the circuit breaker
and essentially determines the size of the circuit breaker.
See Figure "Overview of 3WL circuit breakers/non-automatic
air circuit breakers".
• Rated current In that is to flow through the branch circuit. This
value must not be higher than the maximum rated current for
the circuit breaker.
The rated current for the 3WL circuit breaker is set with the
rating plug. See Figure "Overview of 3WL circuit breakers/
non-automatic air circuit breakers" under "Design".
• Ambient temperature for the circuit breaker.
This is usually the control cabinet's internal temperature.
•Design
of the circuit breaker
• Minimum short-circuit current which flows through the
switching device. The trip unit must still detect this value as a
short-circuit and must respond by tripping.
Protection functions of the circuit breaker.
These are defined by selection of the corresponding Electronic
Trip Unit; see table "Functions of the Electronic Trip Units" under
"Functions".
L1
L2
L3
N
T5 PE
NSE0_00946a
L1
L2
L3
N
T6
PE
NSE0_00947
T6: 1200 A/1 A
NSE0_00948
L1
L2
L3
N
T6 PE
T6: 1200 A/1 A
© Siemens AG 2018
21
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
3WL circuit breakers for DC applications
This version of the 3WL non-automatic air circuit breaker is
suitable for direct current applications. The external protective
device DIGmat S100 provides adjustable overload and short-
circuit protection for the 3WL non-automatic air circuit breaker.
This is based on the measuring chain of a shunt resistor and the
DIGmat S100 tripping unit. Shunt resistors are available for
1000 A, 2000 A and 4000 A (special ranges on request).
They are in accordance with DIN 43703 and have a class
accuracy of 0.5.
A measuring-circuit voltage of 60 mV DC is picked off for the
rated current In.
The measuring-circuit voltage is a linear image of the primary
current.
The DIGmat S100 trip unit monitors the image of the primary
current thus supplied and compares it with the tripping
characteristic curve set on the device. The parameter settings
on the DIGmat S100 apply also for DC feedbacks.
Reversing duty is thus possible.
The tripping characteristic curve is determined and described
by the following variables:
• Overload protection:
Setting range IR = 0.4 ... 1.0 In
The characteristic curve has a I2t characteristic.
The tripping time tR is selectable between 2 and 10 s, with tR
defined for 6 × IR.
DIGmat S100
• Short-circuit protection:
Setting range Ii = 1.25 × IR to max. 4 × In
Tripping occurs in less than 50 ms if the set value is exceeded.
In= Rated current of the circuit breaker
IR= Current setting value of the adjustable overload release
tR= Assigned tripping time of the overload trip
Ii= Instantaneous tripping current of the adjustable
short-circuit release
The components are available only from the company
mat – Maschinen- und Anlagentechnik:
mat – Maschinen- und Anlagentechnik
Dr. Becker GmbH
Rudolf-Diesel-Straße 22
22941 Bargteheide
Tel.: +49 (4532) 20-2101
Fax: +49 (4532) 20-2121
Email: info@m-a-t.de
Internet: www.m-a-t.de
■
Configuration
Mutual mechanical circuit breaker interlocks
The module for mutual mechanical interlocking can be used for
two or three 3WL circuit breakers and can be adapted easily to
the corresponding versions. The fixed-mounted and
withdrawable circuit breaker versions are fully compatible and
can therefore be used in a mixed configuration in an installation.
This also applies to 3WN6 circuit breakers.
The circuit breakers can be mounted adjacent to each other or
one above the other, whereby the distance of the circuit breakers
is determined solely by the length of the Bowden cable
(lengths: 2 m/3 m/4.5 m). Interlock signals are looped through
using the Bowden cables. Interlocking is only effective in the
connected position in the case of withdrawable circuit breakers.
The mechanical endurance of the Bowden cables is
10000 operating cycles.
To ensure that the interlock functions properly, the following
minimum switchboard requirements must be fulfilled:
• Bowden cables must be laid so that they are as straight as
possible
• The bending radii of the Bowden cable must be > 500 mm
• The total bending angle across the length of the Bowden
cable must not exceed 640°
• If the circuit breakers to be interlocked are arranged vertically,
the interlock mechanisms must be aligned
• Circuit breakers to be interlocked must be arranged so that
Bowden cables can be optimally installed in compliance with
the conditions mentioned in the above points
• The installed Bowden cable must be fixed (with cable ties or
the like) before the interlock is adjusted
• Select the width of switchboard cubicle to allow enough
freedom of movement for adjusting the interlock!
• Openings and cutout sections in system elements must be
designed in such a way that the direction of the Bowden
cables is not changed and that the wires are not obstructed
when they are routed
Mutual mechanical interlocking of circuit breakers – examples
Mutual interlocking of two
circuit breakers
Interlocking of three circuit
breakers
Mutual interlocking of three
circuit breakers
Interlocking of three circuit
breakers, two of them mutual
S1S2
NSE0_01041
S1
S2
S3
NSE0_01042
S1S2S3
NSE0_01043
S1S2S3
NSE0_01044
S1S3
NSE0_01045
S2
© Siemens AG 2018
22 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Communication-capable circuit breakers
Communication with PROFIBUS DP
20
21
18
8
6
19
13 14 15 16 17 7
2
4 5
1 1 1
3
9
10
11
12
3VA molded case circuit breakers
3VL molded case circuit breaker
Electronic Trip Unit ETU / LCD ETU
COM800 breaker data server
COM100 breaker data server
COM20 Release 2 PROFIBUS module including Zone Selective Interlocking
BDA Plus with Ethernet interface
3WL air circuit breaker
COM15 PROFIBUS module
Breaker Status Sensor (BSS)
Electronic Trip Unit (ETU)
1
2
3
4
5
6
7
8
9
10
11
Metering function Plus
Zone Selective Interlocking module
Digital output module with relay contacts
Digital output module with relay contacts, configurable
Analog output module
Digital input module
Powerconfig commissioning and service software V2.3 and higher
PLC, e.g. SIMATIC S7
E.g. SIMATIC powerrate
7KM PAC measuring devices
12
13
14
15
16
17
18
19
20
21
NSE0_01105
PROFIBUS
Ethernet
PROFINET
3VA-line 3VA-line CubicleBUS
© Siemens AG 2018
23
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Communication with MODBUS RTU
The requirements for power distribution in terms of communica-
tion capability, data transparency, flexibility and integration are
constantly increasing. An integrated and modular communica-
tion architecture was designed for the 3WL circuit breaker to
ensure that it can satisfy these requirements.
The core component of this architecture is the CubicleBUS,
which links together all of the intelligent components within the
3WL circuit breaker and enables the easy and safe connection
of other additional external components to the circuit breaker.
The CubicleBUS is already incorporated and connected in all
complete circuit breakers with ETU45B and ETU76B trip units.
The high modularity of the system allows retrofitting of communi-
cation functions (e.g. metering function) at any time. Similarly, a
non-communication-capable 3WL circuit breaker can be
upgraded (e.g. changeover from ETU25B to ETU45B with
CubicleBUS) easily on site in the plant. All modules connected
to the CubicleBUS can directly access the existing source data
of the circuit breaker, which guarantees the quickest possible
access to information and response to events.
Furthermore, additional external modules (including digital
inputs and outputs, analog outputs) can be connected to the
CubicleBUS to provide cost-effective solutions for the
automation of additional devices in the switchboard.
1 1 1 2 4
35
9
876 10
11
3VA molded case circuit breakers
3WL air circuit breaker
COM16 MODBUS module
3VL molded case circuit breaker
COM21 MODBUS module
COM800 breaker data server
1
2
3
4
5
6
COM100 breaker data server
7KM PAC4200 measuring device
7KM PAC3100 measuring device
7KM PAC3200 measuring device
Powerconfig commissioning and service software V2.3 and higher
7
8
9
10
11
RS 485 with MODBUS RTU
Ethernet MODBUS TCP
3VA-line 3VA-line
I201_19162
© Siemens AG 2018
24 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Communication-capable 3WL circuit breakers
Function Electronic Trip Unit
version
Breaker
Status
Sensor
PROFIBUS
communi-
cation port
Metering
function
Plus
Analog
output
module
Digital
output
module
Digital
input
module
ZSI
module
Breaker
Data
Adapter
Plus
ETU45B ETU76B
Functions of the communication-capable 3WL circuit breakers
Indication of measured values in trip unit
(current only) ✓ ✓ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏
Indication of measured values in the trip unit
(U, I, P, S, Q, p.f., etc.) ✓ ✓ ❏❏ ✓❏❏❏❏❏
Indication of measured values (current only),
parameters, diagnostic values etc. on display -- ✓ ❏ ❏ ❏ ❏ ❏ ❏ ❏ ❏
Indication of measured values (U, I, P, S, Q, p.f.,
etc.), parameters, diagnostic values, etc. in trip unit -- ✓❏ ❏ ✓❏❏❏❏❏
Output of measured values (current only)
to rotary coil instruments in control cabinet door ✓ ✓ ❏ ❏ ❏ ✓ ❏ ❏ ❏ ❏
Output of measured values (U, I, P, S, Q, p.f., etc.)
to rotary coil instruments in control cabinet door ✓ ✓ ❏❏ ✓✓❏❏❏❏
Output of digital signals (e.g. reason for tripping,
alarms, status) through contacts ✓ ✓ ❏ ❏ ❏ ❏ ✓ ❏ ❏ ❏
Automatic changeover between
parameter sets A and B -- ✓ ❏❏ ❏❏❏✓❏❏
Read-in of digital signals and
forwarding to PROFIBUS/MODBUS ✓ ✓ ❏ ✓ ❏ ❏ ❏ ✓ ❏ ❏
Transmission of breaker information
on HTML basis locally to a PC ✓ ✓ ✓❏ ❏❏❏❏❏✓
Transmission of breaker information
on HTML basis through Ethernet ✓ ✓ ✓ ❏ ❏ ❏ ❏ ❏ ❏ ✓
Short-time discrimination for
S tripping and G protection ✓ ✓ ❏❏ ❏❏❏❏✓❏
Local display of harmonics analysis and waveform
memory -- ✓ ❏ ❏ ✓ ❏ ❏ ❏ ❏ ❏
Local storage of harmonics analysis and waveform
memory and transmission through PROFIBUS ✓ ✓ ✓✓ ✓❏❏❏❏❏
Read-out of protection parameters
through PROFIBUS ✓ ✓ ✓ ✓ ❏ ❏ ❏ ❏ ❏ ❏
Read-out and adjustment of protection parameters
through PROFIBUS -- ✓ ✓✓ ❏❏❏❏❏❏
✓ Required
Function can optionally be adopted by several
trip units.
Function can optionally be adopted by one of these
modules.
❏ Not necessary for this function, optionally combinable
-- Function not available
© Siemens AG 2018
25
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Data that can be transmitted over the PROFIBUS DP/MODBUS or the Breaker Data Adapter
1) Data only available in conjunction with the COM15 module
(BUS connection not required).
2) Only possible with ETU76B.
✔ Available
-- Not available
All 3WL circuit breakers with ETU45B, ETU76B (CubicleBUS integrated)
Transmittable circuit breaker data
BSS BDAPLUS BSS COM15/COM16
Order code (Article No. of circuit breaker + "-Z")
Article No.
F01
+ "BDAPLUS"-
Article No.
F02/F12
Possible applications
Transmission of circuit breaker data to PROFIBUS DP or MODBUS and integration into
higher-level visualization systems possible
e.g. in PCS7, Power Management Systems, WinCC
(including add-ons like the text message radio server)
-- ✔
Transmission of circuit breaker data and software (i.e. HTML pages with data) to a local output
device, or remotely through Ethernet/Intranet/Internet (without the possibility of integration into
higher-level visualization systems)
e.g. for monitoring, diagnostics, maintenance and parameterization of individual circuit breakers
✔--
Utilization of the functionality of all CubicleBUS modules
e.g. configuration of the configurable digital output module, status check of the digital input modules,
diagnostics
✔ ✔
Transmittable circuit breaker data without integrated metering function
Device identification
Communication address, Article No. Circuit breaker in delivery state, circuit breaker parameters
(size, number of poles, rating plug etc.), identification numbers, trip unit type,
free text for plant code and comments
✔
--1)
✔
✔
Operating states
On/Off status message, spring energy store, tripped, readiness
Breaker position (connected, test and disconnected position, removed) for withdrawable circuit breakers,
PROFIBUS/MODBUS write protection on/off, free user input, tripped signal
✔
--1)
--1)
✔
✔
✔
Control commands
Switch circuit breaker on/off, switch free user output on/off
Reset tripped signal
Delete event and history memory
Reset min./max. measured values, reset maintenance information
--1)
✔
--1)
✔
✔
✔
✔
✔
History
Read-out of event log, read-out of trip log --1)✔
Maintenance information
Number of tripping operations L, S/I and in total, contact wear
Number of operating cycles under load and in total, number of operating hours
✔
--1)
✔
✔
Event signals
Tripped signals with details of the tripping current
Alarm signals (e.g. overload) with incoming/outgoing information
All of the named event signals with time stamp
✔
--1)
--1)
✔
✔
✔
Parameterization of the protection functions
Read-out of the protection function parameters
Settings for the protection function parameters can be changed by means of communication
Parameter set switchover possible (set A to set B and back)
✔
✔2)
✔2)
✔
✔ 2)
✔2)
Measured values
Phase currents, each with min./max. value
Temperature in the circuit breaker with min./max. value
Temperature in the control cabinet with min./max. value
All of the named measured values with time stamp
✔
--1)
--1)
--1)
✔
✔
✔
✔
Metering function Plus
Order code F01+ ... or F02+ ... F05
Additional transmittable circuit breaker data with integrated metering function
Additional event signals
Threshold value alarms (e.g. over/underfrequency, over/undervoltage) ✔
Parameterization of the extended protection functions and setpoints (threshold values)
Read-out of the parameters of the extended protection functions
Settings for the extended protection function parameters can be changed
Read-out and adjustment of threshold values
✔
✔
✔
Additional measured values
Voltages, power, energy, p.f., frequency, each with min./max. value
Harmonics analysis
Recording of currents and voltages for configurable events in the waveform memory
✔
✔
✔
© Siemens AG 2018
26 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
CubicleBUS modules
Digital output module with rotary coding switch
6 items of binary information concerning the state of the circuit
breaker (reasons for tripping and alarms) can be output via this
module to external signaling devices (e.g. LED, horn) or used for
the selective shutdown of other system components
(e.g. frequency converters).
Digital output modules are available in versions with and without
a rotary coding switch. On modules with a rotary coding switch
it is possible to choose between two signaling blocks each with
6 defined assignments and to set an additional response delay.
All the digital output modules are available as a version with
relay outputs (CO contacts, up to 12 A). Up to two modules of
this type can be connected to one 3WL circuit breaker.
Digital output module with rotary coding switch
Digital output module, configurable
The configurable output module is available for higher-perform-
ance solutions. With this module, random events on the
CubicleBUS can be switched directly to one of six available
outputs or three of these outputs can be assigned with up to six
events. In other words, up to six events can be placed on one
physical output with "OR" operation. Either BDA Plus or
powerconfig is used for configuring.
A relay variant is also available here the same as for the output
modules with rotary coding switch. Only one module of this type
is possible per 3WL circuit breaker.
Digital output module, configurable
Analog output module
The analog output module can be used to output the following
measured values to analog indicators in the control cabinet
door:
•IL1, IL2, IL3, IN or
•UL12, UL23, UL31, UL1N or
•PL1, PL2, PL3, Stot or
•p.f.
1, p.f.2, p.f.3, I % or
•favg, ULLavg, Ptot, p.f. avg
Four 4-20 mA/0-10 V interfaces are available for this. The
measured values to be output are selected with a rotary coding
switch. By using the analog output module it is possible to do
without additional converters and their conventional installation/
wiring in the main conducting path. Up to two modules of this
type can be connected to one 3WL circuit breaker.
Analog output module
Digital input module
With the digital input module, up to 6 additional binary signals
(24 V DC) in the circuit breaker environment can be connected
to the system. It is thus possible for example to send messages
concerning the state of a switch disconnector or a control
cabinet door to the PROFIBUS DP/MODBUS.
With the digital input module on the CubicleBUS it is also
possible for the two different protection parameter sets held in
the ETU76B Electronic Trip Unit trip unit to be switched over
automatically in a few milliseconds. It is thus possible,
for example, to automatically change the parameters of a
tie-breaker should the transformer infeed fail.
One module each of this type can be used for holding the six
items of digital information and for automatically switching over
the parameters.
Digital input module
ZSI module (short-time discrimination control)
The use of ZSI modules is recommended when Siemens circuit
breakers are arranged in several staggered levels but full
discrimination with the smallest possible delay is to be assured
nevertheless.
The circuit breakers are interconnected by these modules. In
case of a short-circuit, each affected circuit breaker interrogates
the circuit breakers directly downstream whether the short-
circuit has also occurred in the next, lower level. The short-circuit
is exactly localized as a result, and only the next upstream circuit
breaker in the energy flow direction is switched off.
ZSI module (short-time discrimination control)
© Siemens AG 2018
27
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
■
Technical specifications
1) Use of trip units from –20 °C
2) ETU76B with graphics display can be used up to max. 55 °C.
3) At breaking capacity H: 1600 A to 70 °C.
4) Make time through closing coil for synchronization purposes
(short-time excited) 50 ms.
5) Maintenance means: Replace main contact elements and arc chutes
(see Operating Manual).
6) Replacement of the main contact elements of circuit breakers size I with
breaking capacity H is only possible at the factory.
7) Minimum interval time between 2 tripping operations.
8) 3-pole switching with breaking capacity N and S: 45/h.
9) Motorized operating mechanisms Uimp = 1.2 kV
Size III
Type ... 3WL11 10 3WL11 12 3WL11 16 3WL11 20 3WL12 08 3WL12 10 3WL12 12 3WL12 16
Number of poles 3-pole, 4-pole
Rated current In at 40 °C, at 50/60 Hz
Main conductor
N-conductor (only on 4-pole versions)
A
A
... 1000
... 1000
1250
1250
1600
1600
2000
2000
800
800
1000
1000
1250
1250
1600
1600
Rated operational voltage Ue at 50/60 Hz
(1000 V version, see Catalog LV 10 "Options")
V AC ...
690/1000
...
690/1000
...
690/1000
...
690/1000
...
690/1000
...
690/1000
...
690/1000
...
690/1000
Rated insulation voltage UiV AC 1000 1000 1000 1000 1000 1000 1000 1000
Rated impulse withstand voltage Uimp
• Main conducting paths
• Auxiliary circuits
• Control circuits9)
kV
kV
kV
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
Isolating function acc. to EN 60947-2 Yes Yes Yes Yes Yes Yes Yes Yes
Utilization category B
Permissible ambient temperature
• During operation (in operation with LCD max. 55 °C)1)
•Storage
C
C
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
Permissible load for
withdrawable versions
at rear horizontal main circuit
connections
•Up to 55 C (Cu bare)
•Up to 60 C (Cu bare)2)
•Up to 70 C
(Cu painted black)2)
A
A
A
1000
1000
1000
1250
1250
1210
1600
1600
14903)
2000
1930
1780
800
800
800
1000
1000
1000
1250
1250
1250
1600
1600
1600
Rated rotor operational voltage Uer V2000 2000 2000 2000 2000 2000 2000 2000
Power loss at In
With 3-phase symmetrical load
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
W
W
100
195
105
205
150
350
240
440
40
85
45
95
80
165
85
175
Switching times
• Make time
• Opening time
• Electrical make time (through closing coil)4)
• Electrical opening time (through shunt release)
• Electrical opening time (instantaneous undervoltage
release)
• Opening time due to ETU, instantaneous short-circuit
release
ms
ms
ms
ms
ms
ms
35
38
80
73
73
50
35
38
80
73
73
50
35
38
80
73
73
50
35
38
80
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
Service life: Breaking capacity N and S, 3-/4-pole
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)5) Operating cycles
• Electrical (without maintenance) Operating cycles
• 1000 V version, electrical (without maintenance) Oper. cycles
• 1150 V version, electrical (without maintenance) Oper. cycles
• Electrical (with maintenance)5) Operating cycles
10 000
20 000
10 000
--
--
20 000
10 000
20 000
10 000
--
--
20 000
10 000
20 000
10 000
--
--
20 000
10 000
15 000
7500
--
--
15 000
10 000
15 000
7500
--
--
15 000
10 000
15 000
7500
--
--
15 000
10 000
15 000
7500
--
--
15 000
10 000
15 000
7500
--
--
15 000
Service life: Breaking capacity H, 3-pole
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)5) Operating cycles
• Electrical (without maintenance) Operating cycles
• 1000 V version, electrical (without maintenance) Oper. cycles
• 1150 V version, electrical (without maintenance) Oper. cycles
• Electrical (with maintenance)5)6) Operating cycles
10 000
15 000
7 500
1000
--
15 000
10 000
15 000
7500
1000
--
15 000
10 000
15 000
7 500
1000
--
15 000
10 000
15 000
7500
1000
--
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
Service life: Breaking capacity H, 4-pole
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)5) Operating cycles
• Electrical (without maintenance) Operating cycles
• 1000 V version, electrical (without maintenance) Oper. cycles
• 1150 V version, electrical (without maintenance) Oper. cycles
• Electrical (with maintenance)5)6) Operating cycles
10 000
15 000
7 500
1000
--
10 000
10 000
15 000
7500
1000
--
10 000
10 000
15 000
7 500
1000
--
10 000
10 000
15 000
7500
1000
--
10 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
Service life: Breaking capacity C
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)5) Operating cycles
• Electrical (without maintenance) Operating cycles
• Electrical (with maintenance)5) Operating cycles
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
5 000
10 000
5 000
10 000
5 000
10 000
5 000
10 000
5000
10 000
5000
10 000
5 000
10 000
5 000
10 000
Switching frequency7)
• 690 V version
• 1000 V version
• 1150 V version
1/h
1/h
1/h
608)
--
--
608)
--
--
608)
--
--
60
20
--
608)
20
20
608)
20
20
608)
20
20
608)
20
20
Minimum interval between tripping operation by
Electronic Trip Unit and next making operation of the
circuit breaker (only with automatic mechanical resetting
of the lockout device).
Minimum interval between On-Off or Off-On switching
operations.
ms 80 80 80 80 80 80 80 80
© Siemens AG 2018
28 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size III
Type ... 3WL11 10 3WL11 12 3WL11 16 3WL11 20 3WL12 08 3WL12 10 3WL12 12 3WL12 16
Mounting position
and/or
Degree of protection IP20 without cabinet door, IP41 with door sealing frame, IP55 with cover
Main conductor
minimum
cross-sections
• Copper bars,
bare
• Copper bars,
painted black
Unit(s)
mm2
Unit(s)
mm2
1 ×
60 × 10
1 ×
60 × 10
2 ×
40 × 10
2 ×
40 × 10
2 ×
50 × 10
2 ×
50 × 10
3 ×
50 × 10
3 ×
50 × 10
1 ×
50 × 10
1 ×
50 × 10
1 ×
60 × 10
1 ×
60 × 10
2 ×
40 × 10
2 ×
40 × 10
2 ×
50 × 10
2 ×
50 × 10
Auxiliary conductors (Cu)
Max. number
Auxiliary conductors ×
cross-section
(solid/stranded)
Standard connection =
strain-relief clamp
• Without end sleeve
• With end sleeve acc. to
DIN 46228 Part 2
• With twin end sleeve
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16); 1 × 2.5 mm2 (AWG 14)
1 × 0.5 mm2 (AWG 20) ... 1 × 1.5 mm2 (AWG 16)
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16)
Optional connection =
tension spring
• Without end sleeve
• With end sleeve acc. to
DIN 46228 Part 2
2 × 0.5 mm2 (AWG 20) ... 2 × 2.5 mm2 (AWG 14)
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16)
Position signaling switches Tension spring terminals 1 × 0.5 mm2 (AWG 20) ... 1 × 2.5 mm2 (AWG 14)
Weights 3-pole
4-pole
• Fixed-mounted circuit
breakers
• Withdrawable circuit
breakers
• Guide frames
• Fixed-mounted circuit
breakers
• Withdrawable circuit
breakers
• Guide frames
kg
kg
kg
kg
kg
kg
43
45
25
50
54
30
43
45
25
50
54
30
43
45
25
50
54
30
43
45
25
50
54
30
56
60
31
67
72
37
56
60
31
67
72
37
56
60
31
67
72
37
56
60
31
67
72
37
Dimensions
3-/4-pole
W mm 320/410 460/590
Fixed-mounted H mm 434 434
D mm 291 291
Withdrawable H mm 465.5 465.5
D mm 471 471
NSE0_00061a
30° 30°
NSE0_00062a
30° 30°
NSE0_00927
= 1 mm
Dh
max.
NSS0_00535
H
WD
© Siemens AG 2018
29
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
1) Use of trip units from –20 °C
2) 4000 A, size II in fixed-mounted version, 3-pole.
3) Derating factors for fixed mounting of 3WL12 40.
4) ETU76B with graphics display can be used up to max. 55 °C.
5) Make time through closing coil for synchronization purposes (short-time
excited) 50 ms.
6) Maintenance means: Replace main contact elements and arc chutes
(see Operating Manual).
7) Size II with order code "A15" and size III:
data for very high breaking capacity.
8) Minimum interval time between 2 tripping operations.
9) 3-pole switching with breaking capacity N and S: 45/h.
10)Motorized operating mechanisms Uimp = 1.2 kV
11)1000 V and 1150 V versions only in the case of H breaking capacity
Size II III
Type 3WL12 20 3WL12 25 3WL12 32 3WL12 40 3WL13 40 3WL13 50 3WL13 63
Number of poles 3-pole, 4-pole
Rated current In at 40 °C, at 50/60 Hz
Main conductor
N-conductor (only on 4-pole versions)
A
A
2000
2000
2500
2500
3200
3200
4000
4000
4000
4000
5000
5000
6300
6300
Rated operational voltage Ue at 50/60 Hz
(1000 V version, see Catalog LV 10 "Options")
V AC ...
690/1000
...
690/1000
...
690/1000
... 690 ...
690/1000
...
690/1000
...
690/1000
Rated insulation voltage UiV AC 1000 1000 1000 1000 1000 1000 1000
Rated impulse withstand voltage Uimp
• Main conducting paths
• Auxiliary circuits
• Control circuits10)
kV
kV
kV
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
Isolating function acc. to EN 60947-2 Yes Yes Yes Yes Yes Yes Yes
Utilization category B
Permissible ambient temperature
• During operation (in operation with LCD max. 55 °C)1)
•Storage
C
C
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
Permissible load for with-
drawable versions2) • Up to 55 C (Cu bare)
• Up to 60 C (Cu bare)4)
• Up to 70 C (Cu painted black)4)
A
A
A
2000
2000
2000
2500
2500
2280
3200
3020
2870
39503)
3810
3600
4000
4000
4000
5000
5000
5000
5920
5810
5500
Rated rotor operational voltage Uer V2000 2000 2000 2000 2000 2000 2000
Power loss at In
With 3-phase symmetrical load
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
W
W
180
320
270
520
410
710
750
925
520
810
630
1050
900
1600
Switching times
• Make time
• Opening time
• Electrical make time (through closing coil)5)
• Electrical opening time (through shunt release)
• Electrical opening time (instantaneous undervoltage release)
• Opening time due to ETU, instantaneous short-circuit release
ms
ms
ms
ms
ms
ms
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
35
34
100
73
73
50
Service life: Breaking capacity N, S and H11)
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)6) Operating cycles
• Electrical (without maintenance) up to 690 V Operating cycles
• 1000 V version, electrical (without maintenance) Operating cycles
• 1150 V version, electrical7) (without maintenance) Operating cycles
• Electrical (with maintenance)6) Operating cycles
10000
15000
7500
1000
500
15000
10000
15000
7500
1000
500
15000
10000
15000
4000
1000
500
15000
10000
15000
2000
1000
500
15000
5000
10000
2000
1000
500
10000
5000
10000
2000
1000
500
10000
5000
10000
2000
1000
500
10000
Service life: Breaking capacity C
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)6) Operating cycles
• Electrical (without maintenance) up to 690 V Operating cycles
• Electrical (without maintenance) up to 1150 V Operating cycles
• Electrical (with maintenance) up to 690 V6) Operating cycles
5000
10000
5000
--
10000
5000
10000
5000
--
10000
5000
10000
4000
--
8000
--
--
--
--
--
5000
10000
1000
500
--
5000
10000
1000
500
--
5000
10000
1000
500
--
Switching frequency8)
• 690 V version
• 1000 V version
• 1150 V version7)
1/h
1/h
1/h
609)
20
20
609)
20
20
609)
20
20
609)
20
20
60
20
20
60
20
20
60
20
20
Minimum interval between tripping operation by Electronic Trip
Unit and next making operation of the circuit breaker (only with
automatic mechanical resetting of the lockout device).
Minimum interval between On-Off or Off-On switching operations.
ms 80 80 80 80 80 80 80
© Siemens AG 2018
30 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Minimum main conductor cross-sections for 4-pole withdrawable circuit
breakers: 4 x 120 x 10 mm.
Calculating the power consumption of the CubicleBUS modules
for SENTRON WL with CubicleBUS system
Size II III
Type 3WL12 20 3WL12 25 3WL12 32 3WL12 40 3WL13 40 3WL13 50 3WL13 63
Mounting position
Degree of protection IP20 without cabinet door, IP41 with door sealing frame, IP55 with cover
Main conductor
minimum
cross-sections
• Copper bars,
bare
• Copper bars,
painted black
Unit(s)
mm2
Unit(s)
mm2
3 ×
50 × 10
3 ×
50 × 10
2 ×
100 × 10
2 ×
100 × 10
3 ×
100 × 10
3 ×
100 × 10
4 ×
120 × 10
4 ×
100 × 101)
4 x
100 x 10
4 ×
100 × 10
6 x
100 x 10
6 ×
100 × 10
6 x
120 x 10
6 ×
120 × 10
Auxiliary conductors
(Cu)
Max. number of
auxiliary conductors ×
cross-section
(solid/stranded)
Standard connection = strain-relief clamp
• Without end sleeve
• With end sleeve acc. to
DIN 46228 Part 2
• With twin end sleeve
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16); 1 × 2.5 mm2 (AWG 14)
1 × 0.5 mm2 (AWG 20) ... 1 × 1.5 mm2 (AWG 16)
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16)
Optional connection = tension spring
• Without end sleeve
• With end sleeve acc. to DIN 46228 Part 2
2 × 0.5 mm2 (AWG 20) ... 2 × 2.5 mm2 (AWG 14)
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16)
Position signaling
switches
Tension spring terminals 1 × 0.5 mm2 (AWG 20) ... 1 × 2.5 mm2 (AWG 14)
Weights 3-pole
4-pole
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
• Guide frames
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
• Guide frames
kg
kg
kg
kg
kg
kg
56
60
31
67
72
37
59
63
39
71
76
47
64
68
45
77
82
54
85
121
52
103
146
62
82
88
60
99
106
84
82
88
60
99
106
84
90
96
70
108
108
119
Dimensions
3-/4-pole
W mm 460/590 704/914
Fixed-mounted H mm 434 434
D mm 291 291
Withdrawable H mm 465.5 465.5
D mm 471 471
NSE0_00061a
30° 30°
NSE0_00062a
30° 30°
and/or
NSE0_00927
= 1 mm
Dhmax.
NSS0_00535
H
WD
CubicleBUS module Number of modules
per CubicleBUS
Max. continuous current
per module from the
CubicleBUS
Max. startup current
per module from the
CubicleBUS
ETU45B Electronic Trip Unit 1120 mA 2000 mA
ETU76B Electronic Trip Unit 1170 mA 2000 mA
Metering function PLUS 1120 mA 120 mA
Breaker Status Sensor BSS 1 40 mA 110 mA
COM15 PROFIBUS communication module 1125 mA 280 mA
ZSI module 1 50 mA 125 mA
Digital output modules with rotary coding switch,
relay outputs
1-2 180 mA 125 mA
Digital output modules, configurable,
relay outputs
1180 mA 125 mA
Analog output modules 1-2 110 mA 800 mA
Digital input modules 1-2 30 mA 125 mA
BDA PLUS 1250 mA 350 mA
© Siemens AG 2018
31
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
1) 24 V and 30 V only with undervoltage release UVR (F3).
Size I to III
Type 3WL1
Manual operating mechanism with mechanical closing
Switching on/charging
the energy store
Max. force required to operate the hand lever
Required number of strokes on the hand lever
N 230
9
Manual operating mechanism with mechanical and electrical closing
Charging the energy store
Closing coil (CC) • Primary operating range 0.85 ... 1.1 × Us
• Extended operating range for battery operation At 24 V DC, 48 V DC
60 V DC, 110 V DC
220 V DC
0.7 ... 1.26 × Us
• Rated control supply voltage Us50/60 Hz AC
DC
V
V
110 ... 127; 208 ... 240
24; 30; 48; 60; 110 ... 125; 220 ... 250
• Power consumption AC/DC VA/
W
15/15
• Min. command duration at Us for the closing coil ms 60
• Short-circuit protection
Smallest permissible DIAZED fuse (operational class gL)/
automatic circuit breaker with C characteristic
1 A TDz (slow)/1 A
Manual/motorized operating mechanism with mechanical and electrical closing
Manual operating mechanism For data, see above.
Motor • Primary operating range 0.85 ... 1.1 × Us
• Extended operating range for battery operation At 24 V DC, 48 V DC
60 V DC, 110 V DC
220 V DC
0.7 ... 1.26 × Us
• Power consumption of motor AC/DC VA/
W
135/135
• Time required to charge the spring energy store at 1 × Uss 10
Closing coil For data, see above.
For motor and
closing coil
• Short-circuit protection
Smallest permissible DIAZED fuse (operational class gL)/
automatic circuit breaker with C characteristic;
Motor and closing coil for same rated control supply voltages
6 A TDz (slow)/2 A
• Smallest permissible DIAZED fuse (operational class gL)/
automatic circuit breaker with C characteristic (for different
rated control supply voltages)
At Us = 24 ... 30 V
At Us = 48 ... 60 V
At Us = 110 ... 125 V DC/
110 ... 127 V AC
At Us = 220 ... 250 V DC/
208 ... 240 V AC
6 A
6 A
2 A
2 A
Signals of the Electronic Trip Unit
Measuring accuracy of the Electronic Trip Unit Protection functions acc. to EN 60947;
Current indication 10%;
Metering function for base quantities
1%;
Metering function for
derived quantities 4%
Auxiliary releases
Undervoltage releases
UVR (F3) and
UVR-td (F4)
• Response values Pickup
Dropout
0.85 × Us
(circuit breaker can be closed)
0.35 ... 0.7× Us
(circuit breaker is opened)
• Primary operating range 0.85 ... 1.1
• Extended operating range for battery operation At 24 V DC, 30 V DC,
48 V DC, 110 V DC,
220 V DC
0.85 ... 1.26
• Rated control supply voltage UsInstantaneous
50/60 Hz AC
DC
Delayed
50/60 Hz AC
DC
V
V
V
V
110 ... 127/208 ... 240/380 ... 415
24/30/48/60/110 ... 125/220 ... 2501)
110 ... 127; 208 ... 240; 380 ... 415
48; 110 ... 125; 220 ... 250
• Power consumption (pickup/uninterrupted duty) AC
DC
VA
W
20/5
20/5
• Opening time of the circuit breaker at Us = 0 ms 200
- Version UVR (F3)
Without delay
With delay
ms
ms
80
200
- Version UVR-td (F8)
With delay, td = 0.2 to 3.2 s
Reset through additional NC contact – direct tripping
s
ms
0.2 ... 3.2
100
• Short-circuit protection
Smallest permissible DIAZED fuse (operational class gL)/
automatic circuit breaker with C characteristic
1 A TDz (slow)/1 A
© Siemens AG 2018
32 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size I to III
Type 3WL1
Auxiliary releases
Shunt releases (ST)
(F1, F2)
• For continuous command
(100% OP), locks out on
momentary-contact
commands
- Response value Pickup > 0.7 × Us
(circuit breaker is tripped)
- Primary operating range 0.85 ... 1.1 × Us
- Extended operating range
for battery operation
At 24 V DC, 48 V DC
60 V DC, 110 V DC
220 V DC
0.7 ... 1.26 × Us
- Rated control supply voltage Us50/60 Hz AC
DC
V
V
110 ... 127; 208 ... 240
24; 30; 48; 60; 110 ... 125;
220 ... 250
- Power consumption AC/DC VA/W 15/15
- Min. command duration at Usms 60
- Opening time of circuit breaker
at Us = 100%
At AC/DC ms 80
- Short-circuit protection
Smallest permissible DIAZED fuse (operational
class gL)/ automatic circuit breaker with
C characteristic
1 A TDz (slow)/1 A
5% OP - Response value Pickup > 0.7 × Us
(circuit breaker is tripped)
- Primary operating range 0.85 ... 1.1 × Us
- Extended operating range
for battery operation
At 24 V DC, 48 V DC
60 V DC, 110 V DC
220 V DC
0.7 ... 1.26 × Us
- Rated control supply voltage Us50/60 Hz AC
DC
V
V
110 ... 127; 208 ... 240
24; 48; 110 ... 125; 220 ... 250
- Power consumption AC/DC VA/W 15/15
- Min. command duration at Usms 25
- Opening time of circuit breaker
at Us = 100%
At AC/DC ms 50
- Short-circuit protection
Smallest permissible DIAZED fuse (operational
class gL)/ automatic circuit breaker with
C characteristic
1 A TDz (slow)/1 A
• With spring energy store
consisting of shunt
release and capacitor
storage device
- Rated control supply voltage Us50/60 Hz AC
DC
V
V
110; 230
110; 220
- Primary operating range 0.85 ... 1.1 × Us
- Power consumption AC/DC VA/W 1/1
- Storage time at Us/
Recharging time at Us
max. 5 min/min. 5 s
- Opening time of the circuit breaker,
short-circuit protection
As with "for continuous
command"
Remote reset solenoid for mechanical tripped indicator (F7)
Remote reset solenoid for
mechanical tripped
indicator (F7)
- Primary operating range 0.85 ... 1.1 × Us
- Extended operating range
for battery operation
At 24 V DC, 48 V DC
110 V DC
220 V DC
0.7 ... 1.26 × Us
- Power consumption AC/DC VA/W 50/50
- Min. command duration at Us for the remote reset
solenoid
ms 60
- Short-circuit protection
Smallest permissible DIAZED fuse (operational class gL)/
automatic circuit breaker with C characteristic
2 A TDz (slow)/1 A at 24 V DC
and 48 V DC,
1 A TDz (slow)/1 A at 110 V and
208 ... 250 V
Contact position-driven auxiliary switches (S1, S2, S3, S4, S7, S8)
Rated insulation voltage UiV
AC/DC
500
Rated operational voltage UeV
AC/DC
500
Rated impulse withstand voltage Uimp kV 4
Breaking capacity • Alternating current
50/60 Hz
- Rated operational voltage Ue
- Rated operational current
Ie/AC-12
Ie/AC-15
V
A
A
24 ... 230
10
4
380/400
10
3
• Direct current - Rated operational voltage Ue
- Rated operational current
Ie/DC-12
Ie/DC-13
V
A
A
24
10
8
48
8
4
110
3.5
1.2
220
1
0.4
Short-circuit protection • Largest permissible DIAZED fuse (operational class gL)
• Largest permissible miniature circuit breaker with C characteristic
10 A TDz, 10 A Dz
10 A
© Siemens AG 2018
33
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Size I to III
Type 3WL1
Ready-to-close signaling switches (S20) (acc. to DIN VDE 0630)
Breaking capacity • Alternating current - Rated operational voltage Ue
- Rated operational current Ie
V
A
250
8
• Direct current - Rated operational voltage Ue
- Rated operational current Ie
V
A
125
0.4
250
0.2
Short-circuit protection Largest permissible DIAZED fuse (operational class gL) 2 A Dz (quick)
Tripped signaling switches (S24) and signaling switches for auxiliary releases (S22, S23)
(acc. to DIN VDE 0630)
Breaking capacity • Alternating current - Rated operational voltage Ue
- Rated operational current Ie/AC-12
V
A
250
8
• Direct current - Rated operational voltage Ue
- Rated operational current Ie/DC-12
V
A
24
6
125
0.4
250
0.2
Short-circuit protection Largest permissible DIAZED fuse (operational class gL) 6 A Dz (quick)
Tripped signaling switch Signal duration after tripping Until manual or
electrical remote reset (option)
Position signaling switch on guide frame
Type of contact • Signal: - "Circuit breaker in connected position"
- "Circuit breaker in test position"
- "Circuit breaker in disconnected position"
3 CO
2 CO
1 CO
or
1 CO
1 CO
1 CO
Rated insulation voltage Ui50/60 Hz AC
DC
V
V
440
250
Rated operational voltage UeV250
Rated impulse withstand voltage Uimp kV 4
Breaking capacity • Rated operational
current Ie
-Ie/AC-12
-Ie/AC-15
-Ie/DC-12
-Ie/DC-13
- A 300 (AC)
- R 300 (DC)
24 V 10 A, 110/127 V 10 A,
220/240 V 10 A, 320/440 V 10 A
220/240 V 4 A,
320/440 V 3 A,
24 V 10 A, 48 V 2.5 A,
220/240 V 0.2 A,
24 V 3.0 A, 220/240 V 0.1 A
120 V 6 A, 240 V 3 A
125 V 0.22 A, 250 V 0.11 A
Short-circuit protection • Largest permissible DIAZED fuse (operational class gL)
• Largest permissible automatic circuit breaker with C characteristic
8 A TDz (slow)
8 A TDz (slow)
© Siemens AG 2018
34 Siemens · 04/2018
General data
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
For the setting range of the response current Ig, see page 35.
Protection functions ETU15B ETU25B ETU27B
Parameterization by D D D & S
Function overview of the electronic trip system
L
Overload protection
Function can be switched on/off
✓
--
✓
--
✓
--
Setting range IR = In × ... 0.5-0.55-0.6-0.65-0.7-
0.75-0.8-0.85-0.9-1
0.4-0.45-0.5-0.55-0.6-
0.65-0.7-0.8-0.9-1
0.4-0.45-0.5-0.55-0.6-
0.65-0.7-0.8-0.9-1
Switchable overload protection
(I2t- or I4t-dependent function)
-- -- --
Setting range for time-lag class tR at I2t10 s fixed 10 s fixed 10 s fixed
Setting range for time-lag class tR at I4t-- -- --
Thermal memory can be switched on/off -- -- --
Phase failure sensitivity -- At tsd = 20 ms (M) At tsd = 20 ms (M)
NN-conductor protection -- -- ✓
Function can be switched on/off -- -- ✓
N-conductor setting range IN = In × ... -- -- 1
S
Short-time delayed short-circuit protection -- ✓✓
Function can be switched on/off -- -- --
Setting range Isd = In × ... -- 1.25-1.5-2-2.5-3-4-6-8-10-12 1.25-1.5-2-2.5-3-4-6-8-10-12
Setting range of delay time tsd -- 0-M-100-200-300-400 ms 0-M-100-200-300-400 ms
Switchable short-time delayed short-circuit protection
(I2t-dependent function)
-- -- --
Setting range of delay time tsd at I2t -- -- --
ZSI function -- -- --
IInstantaneous short-circuit protection ✓✓ ✓
Function can be switched on/off -- -- --
Setting range Ii = In × ... 2-3-4-5-6-7-8 Fixed for Ii 20 In, max. 50 kA Fixed for Ii 20 In, max. 50 kA
G
Ground-fault protection -- -- ✓ permanently installed
Tripping and alarm functions -- -- --
Tripping function can be switched on/off -- -- ✓
Alarm function can be switched on/off -- -- --
Detection of the ground-fault current through
summation current formation with internal or external
N-conductor transformer
-- -- ✓
Detection of ground-fault current through external
current transformer
-- -- --
Setting range of the response current Ig for tripping -- -- A-B-C-D-E
Setting range of the response current Ig for alarm -- -- --
Setting range of the delay time tg -- -- 100-200-300-400-500 ms
Switchable ground-fault characteristic
(I2t-dependent function)
-- -- --
Setting range for delay time tg at I2t -- -- --
ZSI-G function -- -- --
Parameter set changeover
Switchable between parameter set A and B -- -- --
LCD
Alphanumeric LCD (4-line) -- -- --
Graphical LCD (24 V, external power supply required) -- -- --
Communication
CubicleBUS integrated -- -- --
Communications capability via PROFIBUS DP -- -- --
Metering function
Metering capability with metering function Plus -- -- --
LED display
Electronic Trip Unit active ✓ ✓ ✓
Alarm ✓ ✓ ✓
ETU fault ✓ ✓ ✓
L tripping operation -- ✓✓
S tripping operation -- ✓✓
I tripping operation -- ✓ ✓
N tripping operation -- -- ✓
G tripping operation -- -- ✓
G alarm -- -- --
Tripping operation as a result of extended protection
function
-- -- --
Communication -- -- --
Signals from signaling switches with external CubicleBUS modules (relays)
Overload warning -- -- --
Load shedding, load absorbing -- -- --
Leading signal overload trip 200 ms -- -- --
Temperature alarm -- -- --
Phase unbalance -- -- --
Instantaneous short-circuit trip -- -- --
Short-time delayed short-circuit trip -- -- --
Overload trip -- -- --
Neutral conductor trip -- -- --
Ground-fault protection trip -- -- --
Ground-fault alarm -- -- --
Auxiliary relay -- -- --
ETU fault -- -- --
R
N S E 0 _ 0 0 8 8 8 b
R
s d
s d
i
NSE0_00889a
g
g
NSE0_00890
NSE0_00891
Delay time figures given in ms. ✓ Available.
M = Motor protection, corresponds to 20 ms. -- Not available.
D = Rotary coding switch ❑ Optional.
D & S = Rotary coding and slide switch
K = Communication
M/K = Menu/Communication
© Siemens AG 2018
35
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
General data
Protection functions ETU45B ETU76B
Parameterization by D& S M/K
Function overview of the electronic trip system
Overload protection
Function can be switched on/off
✓
--
✓
✓
Setting range IR = In × ... 0.4-0.45-0.5-0.55-0.6-0.65-0.7-0.8-0.9-1 0.4 ... 1
Switchable overload protection
(I2t- or I4t-dependent function)
✓ ✓
Setting range for time-lag class tR at I2t2-3.5-5.5-8-10-14-17-21-25-30 s 2 ... 30 s
Setting range for time-lag class tR at I4t1-2-3-4-5 s 1 ... 5 s
Thermal memory can be switched on/off ✓ ✓
Phase failure sensitivity At tsd = 20 ms (M) ✓ (on/off)
N-conductor protection ✓✓
Function can be switched on/off ✓ ✓
N-conductor setting range IN = In × ... 0.5 ... 1 0.2 ... 2
Short-time delayed short-circuit protection ✓✓
Function can be switched on/off ✓ ✓
Setting range Isd = In × ... 1.25-1.5-2-2.5-3-4-6-8-10-12 1.25 × In ... 0.8 × Icw
Setting range of delay time tsd M-100-200-300-400 ms M-80 ... 4000 ms
Switchable short-time delayed short-circuit protection
(I2t-dependent function)
✓ ✓
Setting range of delay time tsd at I2t 100-200-300-400 ms 100 ... 400 ms
ZSI function By CubicleBUS module By CubicleBUS module
Instantaneous short-circuit protection ✓✓
Function can be switched on/off ✓ ✓
Setting range Ii = In × ... 1.5-2.2-3-4-6-8-10-12-0.8 x Ics 1.5 × In ... 0.8 × Ics
Ground-fault protection ❑ Module can be retrofitted ❑ Module can be retrofitted
Tripping and alarm functions ✓✓
Tripping function can be switched on/off ✓ ✓
Alarm function can be switched on/off -- ✓
Detection of the ground-fault current through summation current
formation with internal or external N-conductor transformer
✓ ✓
Detection of ground-fault current through external
current transformer
✓✓
Setting range of the response current Ig for tripping A-B-C-D-E A ... E
Setting range of the response current Ig for alarm A-B-C-D-E A ... E
Setting range of the delay time tg 100-200-300-400-500 ms 100 ... 500 ms
Switchable ground-fault characteristic
(I2t-dependent function)
✓✓
Setting range for delay time tg at I2t100-200-300-400-500 ms 100 ... 500 ms
ZSI-G function By CubicleBUS module By CubicleBUS module
Parameter set changeover
Switchable between parameter set A and B -- ✓
LCD
Alphanumeric LCD (4-line) ❑--
Graphical LCD (24 V, external power supply required) -- ✓
Communication
CubicleBUS integrated ✓ ✓
Communications capability via PROFIBUS DP ✓ ✓
Metering function
Metering capability with metering function Plus ✓✓
LED display
Electronic Trip Unit active ✓ ✓
Alarm ✓ ✓
ETU fault ✓ ✓
L tripping operation ✓✓
S tripping operation ✓✓
I tripping operation ✓ ✓
N tripping operation ✓ ✓
G tripping operation ✓ (Only with ground-fault protection module) ✓ (Only with ground-fault protection module)
G alarm ✓ (Only with ground-fault protection module) ✓ (Only with ground-fault protection module)
Tripping operation as a result of extended protection functions ✓ ✓
Communication ✓ ✓
Signals from signaling switches with external CubicleBUS modules (relays)
Overload warning ✓✓
Load shedding, load absorbing ✓ ✓
Leading signal overload trip 200 ms ✓✓
Temperature alarm ✓ ✓
Phase unbalance ✓✓
Instantaneous short-circuit trip ✓ ✓
Short-time delayed short-circuit trip ✓✓
Overload trip ✓ ✓
Neutral conductor trip ✓✓
Ground-fault protection trip ✓ (Only with ground-fault protection module) ✓ (Only with ground-fault protection module)
Ground-fault alarm ✓ (Only with ground-fault protection module) ✓ (Only with ground-fault protection module)
Auxiliary relay ✓ ✓
ETU fault ✓✓
Setting range of the response current Ig Increment size when settings are made for the ETU76B using the menu For the legend, see
page 34.
Size I and size II Size III From ... to Increment size From ... to Increment size
A100 A 400 A 0 ... 1 0.1 1000 ... 1600 50
B300 A 600 A 1 ... 100 11600 ... 10000 100
C600 A 800 A 100 ... 500 510000 ... max 1000
D900 A 1000 A 500 ... 1000 10
E1200 A 1200 A
© Siemens AG 2018
36 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
■
Characteristic curves2)
Every Electronic Trip Unit type and every setting has its own
characteristic curve. Only a selection is shown in the following.
The characteristic curves each show the largest and smallest
setting range of 3WL circuit breakers with 1000 A rated current
at 500 V rated voltage with various trip units. In order to obtain a
complete tripping characteristic curve, the relevant parts of the
characteristic curves have to be combined. The characteristic
curves show the behavior of the Electronic Trip Unit when it is
activated by a current that is already flowing before the tripping
operation. If the overcurrent tripping occurs immediately after
closing and the Electronic Trip Unit is therefore not yet activated,
the opening time is extended, depending on the level of the
overcurrent by up to 15 ms. To determine the break-times of the
circuit breakers, approximately 15 ms must be added to the
opening times shown for the arcing time.
For tolerances, see legend below.
The characteristic curves shown apply to ambient temperatures
at the circuit breaker between –5 and +55 °C. The trip unit can
be operated at ambient temperatures of –20 to +70 °C. An ex-
tended tolerance band can apply at these temperatures.
3WL circuit breaker with ETU25B Electronic Trip Unit,
LSI characteristic curve
3WL circuit breaker with ETU27B Electronic Trip Unit,
G characteristic curve
Tolerances for the current settings
L: Tripping operations between 1.05 and 1.2 x IR
S: –0%, +20%
I: –0%, +20%
G: –0%, +20%
Tolerances for the tripping times
L: –20%, +0% for I2t characteristic curve
S: –0%, +60 ms or –0%, 10% for tripping times greater than 600 ms
I: <50 ms
G: –0%, +60 ms or –0%, 10% for tripping times greater than 600 ms
3WL circuit breaker with ETU15B Electronic Trip Unit
3WL circuit breaker with ETU27B Electronic Trip Unit,
LSIN characteristic curve
3WL circuit breaker with ETU45B Electronic Trip Unit,
S characteristic curve
1) Sizes I and II: 100 ... 1200 A
Size III: 400 ... 1200 A.
2) With a single-pole load in the lowest rated current range, the response
times of the short-circuit trip can increase by approx. 10% and the tripping
times by approx. 15% with respect to the characteristic curve.
0,01
0,1
1
10
100
1000
10000
0,1 1 10 100
NSE0_01520
[s]
/ n
R min R max
0,4 ... 1,0 x n
sd min 1,25 ... 12 x n
0 ... 0,4 s
sd max
sd max
sd min
i> 20 x n
max. 50 kA
i
Opening time
0,01
0,1
1
10
100
1000
10000
100 1000 10000 100000
NSE0_01521
[s]
g min g max
100 ... 1200 A1)
0,1 ... 0,5 s g max
g min
A
Opening time
0,01
0,1
1
10
100
1000
10000
0,1 1 10 100
NSE0_01527
[s]
/
n
i i
R min R max
0,5 ... 1,0 x n
2 ... 8 x
n
Opening time
min max
Opening time
0,01
0,1
1
10
100
1000
10000
0,1 1 10 100
NSE0_01519
[s]
/
n
R min R max
0,4 ... 1,0 x
nN
sd min
1,25 ... 12 x
n
0 ... 0,4 s
sd max
sd max
sd
min
i
> 20 x
n
max. 50 kA
i
0,01
0,1
1
10
100
1000
10000
0,1 1 10 100
[s]
sd
0,1 ... 0,4 s
/
n
2sd
1,25 ... 12 x
n
2sd
sd
0,02 ... 0,4 s
Opening time
= const
= const
= const
NSE0_01523a
© Siemens AG 2018
37
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Every Electronic Trip Unit type and every setting has its own
characteristic curve. Only a selection is shown in the following.
The characteristic curves each show the largest and smallest
setting range of 3WL circuit breakers with 1000 A rated current
at 500 V rated voltage with various trip units.
In order to obtain a complete tripping characteristic curve, the
relevant parts of the characteristic curves have to be combined.
The characteristic curves show the behavior of the Electronic
Trip Unit when it is activated by a current that is already flowing
before the tripping operation. If the overcurrent tripping occurs
immediately after closing and the Electronic Trip Unit is therefore
not yet activated, the opening time is extended, depending on
the level of the overcurrent by up to 15 ms. In order to determine
the total break-times of the circuit breakers, approximately 15 ms
must be added to the opening times shown for the arcing time.
For tolerances,
see legend below.
The characteristic curves shown apply to ambient temperatures
at the circuit breaker between –5 and +55 °C. The trip unit can
be operated at ambient temperatures of –20 to +70 °C (ETU76B
with graphic display up to +55 °C). An extended tolerance band
can apply at these temperatures.
3WL circuit breaker with ETU45B and ETU76B Electronic Trip Unit,
L characteristic curve
3WL circuit breaker with ETU45B and ETU76B Electronic Trip Unit,
I characteristic curve
1) Sizes I and II: 100 ... 1200 A
Size III: 400 ... 1200 A.
3WL circuit breaker with ETU45B and ETU76B Electronic Trip Unit,
G characteristic curve
3WL circuit breaker with ETU76B Electronic Trip Unit, S characteristic
curve
Further characteristic curves are shown in the manual and the
planning and configuring tool SIMARIS design, or ask your
Siemens contact person.
Tolerances for the current settings
L: Tripping operations between 1.05 and 1.2 x IR
S: –0%, +20%
I: –0%, +20%
G: –0%, +20%
Tolerances for the tripping times
L: –20%, +0% for I2t characteristic curve
S: –0%, +60 ms or –0%, 10% for tripping times greater than 600 ms
I: <50 ms
G: –0%, +60 ms or –0%, 10% for tripping times greater than 600 ms
0,01
0,1
1
10
100
1000
10000
0,1 1 10 100
NSE0_01522a
[s]
R
/ n
0,4 ... 1,0 x n
4
2
R
2
4
2 ... 30s for
= const
= const
1 ... 5s for
Opening time
0,01
0,1
1
10
100
1000
10000
0,1 1101
NSE0_01524a
[s]
/ n
i
1,5 x n
... 0,8 x cs
/ cs
Opening time
0,01
0,1
1
10
100
1000
10000
100 1000 10000 100000
NSE0_01525a
g
0,1 ... 0,5 s
2
g
[s]
100 ... 1200 A
1)
A
Opening time
2
= const
0,01
0,1
1
10
100
1000
10000
0,1 1101
NSE0_01526a
[s]
/ n/ cw
sd
0,02 ... 4 s
2sd
0,1 ... 0,4 s
1,25 x n... 0,8 x cw
sd
= const
= const
Opening time
© Siemens AG 2018
38 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
■
Dimensional drawings
Voltage transformers for 3WL air circuit breakers
Current transformers for overload protection in the
N-conductor
External current transformers for N-conductor with copper
connection pieces
Dimensions for option with door interlocking
1) Mounting surface
2) Center 3WL circuit breaker operator panel
3) 8 mounting holes for door sealing frame
4) 3 mounting holes for door sealing frame
External current transformers for N-conductor without copper
connection pieces
Door cutout for operator panel
Door cutout for operator panel using the door sealing frame
Size I, 3WL9111-0AA31-0AA0
Size II, 3WL9111-0AA32-0AA0
Size III, 3WL9111-0AA33-0AA0
+
+
51 52 55 58
51 52 55 58
61 62 65 68
61 62 65 68
71 72 75 78
71 72 75 78
S 1
S 1
1 12 13 14
1 12 13 14
51 52 55 58 61 62 65 68 71 72 75 78
S 11 12 13 14
+
±2
87
260
±3
±1
125
NSE0_01103
24
91
83
55
51 44
68
130
Ø 13,5
15
97
41
170
NSE0_00606b
24
91
30 30
90
113
51 44
68
130
50,5
3×10
131
170
Ø 13,5
NSE0_00607b
24
91
30
160
184
30 30
51 44
68
130
NSE0_00608b
Ø 13,5
123
52
3×10
170
Size I, 3WL9111-0AA21-0AA0
Size II, 3WL9111-0AA22-0AA0
Size III, 3WL9111-0AA23-0AA0
Door cutout with edge protector
Option with/without door interlocking
NSE0_01375
60
81
22
96,8
8
R 13,1
R 22
18
36
16
70
83
8,9
40
51
NSE0_01376
54
88
115
131
R 27
95
113 3
65,5
51
51
NSE0_01377
160
45
161
184
3
31
R 15
107
123
340
240
295
NSE0_00164c
Inner dimensions
with edge protector
40
120
300
314
40 120
R5 R5
65
Ø5,5
140
175
350
Ø5,5
140
185
180
Ø5,5
21
12
40
11,5
3
2
14
Dimensions for option with door interlocking
NSE0_00610d
© Siemens AG 2018
39
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
CubicleBUS modules
3WL9 111-0AT2.-0AA0
Breaker Data Adapter (BDA Plus)
3WL9 111-0AT33-0AA0
Door cutout for operator panel using IP55 protective cover
Protective cover, IP55
47,5
70
94
86
6
NSE0_02085
81,9
45,5
38
19
153
30
NSE0_02086
68 340-350
295-300
341
4 x R5
4 x 5,5
72 72
70
Breaker installation level
Mounting surface for circuit
breaker or guide frame
NSE0_01029c
85°
148
313
435
17
NSE0_01030b
395
400
Breaker installation
level
© Siemens AG 2018
40 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size I, up to 2000 A, fixed-mounted version, 3- and 4-pole
Standard version, horizontal connection
Vertical connection
Front connection (single)
Front connection (double hole)
15
270
300
390
123,5 275
5
4
NSE0_00611i
21
aa
150
275
76 327,5
230 127
45
210
19
18
17
9
8
6
14
15
5,5
3
NSE0_00614i
90 90 90
60
3
20
NSE0_00620a
410
320
58
139
90 60
90
55
90
37
110
40
150
20
NSE0_00617k
Ø13
h
60
113,5
128,5 M8
267,5
127,5 30
h
Ø13,5
NSE0_00618i
90 90
b
60 90
NSE0_00619a
3
M8
NSE0_00612i
47
de
6
82
c
55
26 421
90 90
55 55
60 90
55
3
hh
Ø13,5
NSE0_00613c
f
g
c
47
6
82
NSE0_00615i
M8
40 421 40
55
55
60 90
14
90 90
55 55
3
m
m
Ø13,5
NSE0_00616c
© Siemens AG 2018
41
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Dimensions in mm
Connection dimensions in mm
Safety clearances in mm
1) Values for struts, grids and perforated sheets. When using plates with
conductive surfaces: values on request.
2) With insulating shield; for clearance, see "non-conductive parts"
3) Ue = 1000 V with breaking capacity H and Z option Z = A05
Item number Dimensions
&Grooves (4 mm wide, 5 mm deep) for supporting phase partitions in the system
Auxiliary connector with:
(• SIGUT screw terminals 437
)• Screwless connections
• COM15/COM16
440
462
*Dimension to inside surface of the closed cabinet door 106
+Fixing points for mounting the circuit breaker in the system (grid dimensions in mm)
4 x M8 screw nut (150) and 4 x 9 (110)
,"Safe OFF" locking device 33.5
-Key operation 60.5
2Space for cable harness to electrical auxiliary circuit connections 20
Z suffix or breaking capacity X Standard A05, A16 or DC
3Maximum device height 462 462
5Mounting space for removal of the arc chutes 541 591
6Top edge of arc chutes 401 451
789 Safety clearances See below
Max. rated circuit breaker current
• 1000 A AC, breaking capacity N and S only
•1250 - 2000 A AC or breaking capacity H or 2000 A DC
a10 15 Busbar thickness
b10 15
c10 15
d11 6Clearance
e451 461 Clearance
f34 39 Overhang
g541 551 Clearance
h35 Terminal face length
l80
SZ I, fixed-mounted version ... from grounded or non-conductive parts ... from live parts IT system
Above 71) At side At rear Above 7At side 8At rear 9Above 7
Operational voltage, breaking capacity Standard arc chutes – 401 mm
500 V AC, N/S 460 0 0 615 20 20 550
500 V AC, H 460 0 0 715 20 20 550
690 V AC, N/S 460 0 0 765 50 125 --
690 V AC, H 460 0 0 965 75 140 --
Operational voltage, breaking capacity High arc chutes – 451 mm (A05, A16 or DC)
690 V AC 515 0 0 965 75 140 5503)
690 V AC + 20% H 515 0 0 1015 100 140 --
1000 V AC, H 515 0 0 1015 100 140 --
1000 V DC 550 0 0 2) 2) 2) --
© Siemens AG 2018
42 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size I, up to 2000 A, withdrawable version, 3- and 4-pole
Standard version, horizontal connection
Flat terminals Vertical connection
Front connection (single) Front connection (double hole)
55
270
30
13
210
300
320
275
123,5
10
45
NSE0_00621k
45220
382,5
150
a
275
a
76 327,5
40
367,5
327
31
27
42
Ø14
3
10
12
19 16 15
13
12
11
6
14
21
NSE0_00624h
55
15
90 90 90
260
350
287
69
3
10 10
20
NSE0_00630i
55 55 55 55
Ø13,5
68
139 25
270
320
410
j
NSE0_00627
121
14
10
NSE0_00631i
90 90
15
142,5
282,5
26 33
90
55 55 55 55
M12
260
350
287
69
3
ll
NSE0_00632i
150
Ø13,5 165
127,5 30
267,5
60
j
10
NSE0_00628i
15 90 90 90
b
260
NSE0_00629i
350
287
69
3
169,5
c
62,5
11 403
NSE0_00622a
6
10
90 90 90
55 55 55 55
15
26 373
13,5
260
350
69 287
3
h
h
NSE0_00623b
62,5
6
c
493
34
169,5 10
NSE0_00625h
350
260
55
13,5
40
373
14
69 287
55 55 55
15 90 90 90
mm
NSE0_00626h
40
© Siemens AG 2018
43
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Dimensions in mm
Connection dimensions in mm
Safety clearances in mm
1) Values for struts, grids and perforated sheets. When using plates with
conductive surfaces: values on request.
2) Value for plates that cover the lateral openings in the guide frame,
0 mm for struts and grids
3) Ue = 1000 V with breaking capacity H and Z option Z = A05
Item number Dimensions
Z suffix or breaking capacity X Standard A05, A16 or DC
&Grooves (4 mm wide, 5 mm deep) for supporting phase partitions in the system
Auxiliary connector with:
(• SIGUT screw terminals (one-part) 465 (446) 515 (496)
)• Screwless connections 468 518
*Dimension to inside surface of the closed cabinet door 58.0
.Fixing holes 9
/Circuit breaker in connected position 88.5
0Circuit breaker in test position 121.5
1Circuit breaker in disconnected position 140.5
2Space for cable harness to electrical auxiliary circuit connections 20
3Maximum device height 468 518
4Guide frame upper edge 460 510
789 Safety clearances See below
Max. rated circuit breaker current
• Up to 1000 A AC, breaking capacity N and S only
• 1250 - 2000 A AC or breaking capacity H
a10 15 Busbar thickness
b10 15
c10 15
d11 6Clearance
e403 413 Clearance
f34 39 Overhang
g493 503 Clearance
h35 Terminal face length
j38
l59
m80
SZ I, withdrawable versions ... from grounded or non-conductive parts ... from live parts IT system
Above 7At side At rear Above 7At side 8At rear 9Above 7
Arc chute covers Without1) / with Without/with Without/with Without/with Without/with Without/with Without
Operational voltage, breaking capacity Standard arc chutes – 4 = 460 mm
500 V AC, N/S 460 / 460 0 / 402) 0 / 0 615 / 480 20 / 100 20 / 14 550
500 V AC, H 460 / 460 0 / 402) 0 / 0 715 / 480 50 / 50 20 / 14 550
690 V AC, N/S 460 / 460 0 / 402) 0 / 0 765 / 480 50 / 100 125 / 14 --
690 V AC, H 460 / 460 0 / 402) 0 / 0 965 / 480 75 / 225 140 / 14 --
Operational voltage, breaking capacity High arc chutes – 4 = 510 mm (A05, A16 or DC)
690 V AC, H 510 / -- 0 / -- 0 / -- 965 / -- 75 / -- 140 / -- 5503)
690 V AC + 20% H 510 / -- 0 / -- 0 / -- 1015 / -- 100 / -- 140 / -- --
1000 V AC 510 / -- 0 / -- 0 / -- 1015 / -- 100 / -- 140 / -- --
© Siemens AG 2018
44 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size II, up to 4000 A, fixed-mounted version, 3- and 4-pole
Standard version, horizontal connection
Vertical connection 3200 A AC and 4000 A DC Vertical connection 4000 A AC (terminal face length k = 40 mm)
Front connection (single)
Front connection (double hole)
10
270 85
440
570
10
270
440
570
123,5 275
123,5 275
5
4
NSE0_00633b
150
45
127
230
210
150
45
127
230
210 6
150 a
275
a
150 a
275
a
18
17
19
7676 327,5327,5
14
15
33
5,55,5
21
NSE0_00636f
3
130
13090 130
20
NSE0_00642
30
30
90
130130
130
Ø13,5
90
7
7
128
139
460
590
3
3
11040
150
20
h
NSE0_00639k
3030
134,5
98
290
30
134,5
98
290
30
128
11 3
128
h
M8
Ø13,5
NSE0_00640c
bb
90 130 130 13090 130 130 130
3
NSE0_00641b
200 130 200
10
20
142
162
30 30
85 Nm
100
345,5
79,5
13,5
Ø
k
NSE0_01868a
M8
M8
4747
c
d
6
c
e
6
8282
NSE0_00634e
90
40
90 90 90
Ø13,5
90
40
90 90 90
Ø13,5
26 421
26 421
90 130 130 13090 130 130 130
3
h
hNSE0_00635e
M8
4747
c
f
6
c
g
6
8282
NSE0_00637e
40
90 90 90 90
Ø13,5
40
90 90 90 90
Ø13,5
40
14
40 421 40
14
40 421
33
90 130 130 130
90 130 130 130
m
mNSE0_00638d
© Siemens AG 2018
45
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Dimensions in mm
Connection dimensions in mm
Safety clearances in mm
1) Values for struts, grids and perforated sheets. When using plates with
conductive surfaces: values on request.
2) With insulating shield; for clearance, see "non-conductive parts"
3) Ue = 1000 V with breaking capacity H and Z option Z = A05
4) Does not apply to 3WL5: 3WL5 see dimensions 3200 A AC
Item number Dimensions
&Grooves (4 mm wide, 5 mm deep) for supporting phase partitions in the system
Auxiliary connector with:
(• SIGUT screw terminals 437
)• Screwless connections
• COM15/COM16
440
462
*Dimension to inside surface of the closed cabinet door 106
+Fixing points for mounting the circuit breaker in the system (grid dimensions in mm)
4 x M8 screw nut (150) and 4 x 9 (110)
2Space for cable harness to electrical auxiliary circuit connections 20
Ue, Z suffix or breaking capacity X Standard
DC: 600 V
A05, A15 or C
DC: > 600 V
3Maximum device height 462 462
5Mounting space for removal of the arc chutes 541 591
6Top edge of arc chutes 401 451
789 Safety clearances See below
Max. rated circuit breaker current
• Up to 2000 A AC
• Up to 2000 A DC
•2500
4)A AC
• 3200 A AC/4000 A DC
a10 10 15 30 Busbar thickness
b15 15 15 30
c10 10 20 20
d11 11 6 6 Clearance
e451 451 461 461 Clearance
f34 34 39 39 Overhang
g541 541 551 551 Clearance
h35 Terminal face length
m80 --
SZ II, fixed-mounted version ... from grounded or non-conductive parts ... from live parts IT system
Above1) 7At side At rear Above 7At side 8At rear 9Above 7
Operational voltage Standard arc chutes – 401 mm
500 V AC 460 0 0 715 50 20 550
690 V AC 460 0 0 1065 100 140 --
300 V DC 495 0 0 2) 2) 2) --
600 V DC 650 0 0 2) 2) 2) --
Operational voltage, breaking capacity High arc chutes – 451 mm (A05, A16 or DC)
690 V AC, H 510 0 0 1015 100 140 6003)
690 V AC, C 510 0 0 775 100 125 --
690 V AC + 20% H 620 0 0 1015 100 125 --
1000 V AC, H 620 0 0 1015 100 125 --
1150 V AC 620 0 0 2) 2) 2) --
1000 V DC 615 0 0 2) 2) 2) --
3WL52 Double high arc chutes – 501 mm (A17)
© Siemens AG 2018
46 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size II, up to 4000 A, withdrawable version, 3- and 4-pole
Standard version, horizontal connection
Vertical connection 3200 A AC and 4000 A DC Vertical connection 4000 A AC (terminal face length k = 40 mm)
Front connection (single) Front connection (double hole)
Flat terminals
55
350
270
40
480
10 10
275
123,5
5
4
NSE0_00643c
220
27
42
40
31
45
76 327,5
150
aa
275
327
367,5
382,5
Ø14
9







14
21
NSE0_00646f
90 90 90 90
530
400
5545 130 130 130
10 10
287
69
3
20
NSE0_00652c
30 30
138
139
95
270
460
590
j
Ø13,5
NSE0_00649b
135
100
290
30
30
157
172 10
j
NSE0_00650c
5545 130 130 130
b400
530
28769
3
NSE0_00651b
200
100
30 30
177
197
130
55
200
10
20
45
4,6
315,5
109,5
k
10
NSE0_01869
c
62,5
169,5
6
10
e
d
NSE0_00644c
3
55 130 130 130
40
90 90 90 90
45,1
26
373
40
400
530
28769
13,5
hh
NSE0_00645d
c
62,5
169,5
6
10
g
f
NSE0_00647c
55 130
130 130
45
40
90 90 90 90
14
40 40
373
40
400
530
287
69
Ø13,5
3
mm
NSE0_00648d
121 10
NSE0_00653a
45
142,5
282,5
26 33
M12
130 130 130
59 59
287
69
3
10
130
90 40
400
NSE0_00654c
© Siemens AG 2018
47
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Dimensions in mm
Connection dimensions in mm
Safety clearances in mm
1) Values for struts, grids and perforated sheets. When using plates with
conductive surfaces: values on request.
2) Value for plates that cover the lateral openings in the guide frame,
0 mm for struts and grids
3) With insulating shield; for clearance, see "non-conductive parts"
4) Ue = 1000 V with breaking capacity H and Z option Z = A05
Item number Dimensions
Ue, Z suffix or breaking capacity X Standard
DC: 600 V
A05, A15 or C
DC: > 600 V
&Grooves (4 mm wide, 5 mm deep) for supporting phase partitions in the system
Auxiliary connector with:
(• SIGUT screw terminals (one-part) 465 (446) 515 (496)
)• Screwless connections 468 518
*Dimension to inside surface of the closed cabinet door 58.0
.Fixing holes 9
/Circuit breaker in connected position 88.5
0Circuit breaker in test position 121.5
1Circuit breaker in disconnected position 140.5
2Space for cable harness to electrical auxiliary circuit connections 20
3Maximum device height 468 518
4Guide frame upper edge 460 510
789 Safety clearances See below
Max. rated circuit breaker current
• Up to 2000 A AC/2000 A DC
• 2500 A AC
• 3200 A AC/4000 A DC
a10 15 30 Busbar thickness
b10 15 30
c10 20 20
d11 6 6 Clearance
e403 413 413 Clearance
f34 39 39 Overhang
g493 503 503 Clearance
h35 Terminal face length
j38 --
m80 --
SZ II, withdrawable version ... from grounded or non-conductive parts ... from live parts IT system
Above 7At side At rear Above 7At side 8At rear 9Above 7
Arc chute covers Without1) / with Without/with Without/with Without/with Without/with Without/with Without
Operational voltage Standard arc chutes – 4 = 460 mm
500 V AC 460 / 460 0 / 702) 0 / 0 715 / 480 50 / 50 14 / 14 550
690 V AC 460 / 460 0 / 702) 0 / 0 1065 / 480 100 / 225 30 / 14 --
300 V DC 495 / -- 0 / -- 0 / -- 3) 3) 3) --
600 V DC 650 / -- 0 / -- 0 / -- 3) 3) 3) --
Operational voltage, breaking capacity High arc chutes – 4 = 510 mm (A05, A16 or DC)
690 V AC, H 510 / -- 0 / -- 0 / -- 1015 / -- 105 / -- 30 / -- 6004)
690 V AC, C 510 / -- 0 / -- 0 / -- 775 / -- 100 / -- 30 / --
690 V AC + 20% H 620 / -- 0 / -- 0 / -- 1015 / -- 100 / -- 140 / -- --
1000 V AC, H 620 / -- 0 / -- 0 / -- 1015 / -- 100 / -- 140 / -- --
1150 V AC 620 / -- 0 / -- 0 / -- 3) 3) 3) --
1000 V DC 615 / -- 0 / -- 0 / -- 3) 3) 3) --
© Siemens AG 2018
48 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size III, up to 6300 A, fixed-mounted version, 3- and 4-pole
Standard version, horizontal connection
Vertical connection (terminal face length k = 40 mm)
Front connection (single)
Front connection (double hole)
12
205270
680
890
123,5 275
5
4
NSE0_00655c
275
30
150 30
76 327,5
230
150 45
127
35
5,5
210
3
19
17 18 15
6
14
21
NSE0_00658h
130 210 210 210 130
20
3
NSE00664a
160
210
704
914
130
210
15
210
248139
30
Ø13,5
h
4x M10
4x Ø11
(150)
110
20
7
3
7
NSE0_00661j
107
120 15 30
330,5
94,5
142 M10
162
Ø14
k
NSE0_00662c
10
10
85 210 210 210
3
NSE0_00663a
M10
47
1
1451
6
82
20
NSE0_00656d
5050
160 160 160 160
Ø13,5
26
421
130 210 210 210
3
h
hNSE0_00657d
47
20
34
541
6
82 M10
NSE0_00659e
5050
160 160 160 160
Ø13,5
40
421
14
40
130 210 210 210
3
mm
NSE0_00660d
© Siemens AG 2018
49
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Dimensions in mm
Connection dimensions in mm
Safety clearances in mm
1) Values for struts, grids and perforated sheets. When using plates with
conductive surfaces: values on request.
2) Ue = 1000 V with breaking capacity H and Z option Z = A05 or breaking
capacity C
3) With insulating shield; for clearance, see "non-conductive parts"
Item number Dimensions
&Grooves (4 mm wide, 5 mm deep) for supporting phase partitions in the system
Auxiliary connector with:
(• SIGUT screw terminals 437
)• Screwless connections
• COM15/COM16
440
462
*Dimension to inside surface of the closed cabinet door 106
+Fixing points for mounting the circuit breaker in the system (grid dimensions in mm)
4 x M10 screw nut (150) and 4 x 11 (110)
2Space for cable harness to electrical auxiliary circuit connections 20
Ue, Z suffix or breaking capacity X 690 V AC, H > 690 V AC, A05, or C
3Maximum device height 462 462
5Mounting space for removal of the arc chutes 541 591
6Top edge of arc chutes 401 451
789 Safety clearances See below
h35 Terminal face length
k40
m80
SZ III, fixed-mounted version ... from grounded or non-conductive parts ... from live parts IT system
Above1) 7At side At rear Above 7At side 8At rear 9Above 7
Operational voltage Standard arc chutes – 401 mm
500 V AC 460 0 0 515 20 20 450
690 V AC 460 0 0 965 100 125 --
Operational voltage High arc chutes – 451 mm (> 690 V AC, A05 or C)
690 V AC 510 0 0 965 100 125 5002)
690 V AC + 10% H 615 0 0 865 100 125 --
690 V AC + 20% H 615 0 0 865 100 125 --
1000 V AC 615 0 0 865 100 125 --
1150 V AC 615 0 0 3) 3) 3) --
© Siemens AG 2018
50 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Size III, up to 6300 A, withdrawable version, 3- and 4-pole
Standard version, horizontal connection
Vertical connection, up to 6300 A Flange connection, up to 4000 A
Front connection (single) Front connection (double hole)
465,5
57
590
NSE0_00665c
800
160270
468,5
123,5 275
45
10 10 10
220
27
42
40
31
45
76 327,5
150
275
327
367,5
382,5
Ø14
9






30 30
14
21
NSE0_00668_h
20
160
2108557 210 210
630 840
160 160 160
69 287
NSE0_00674h
30
30 30
Ø13,5
704
914
217270
260139
j
NSE0_00671h
94,5
124,5
330,5
30
177
197
24
j
Ø14
10
NSE0_00672c
57
590
800
210
20
10
abb
914
704
10
630
840
NSE0_00673h
121 10
NSE0_00675b
160 160 160 160
704
630
840
142,5
282,5
33
26
M12
28769
85 210 210 210
30
57
590
800
914
5
l
lNSE0_00676c
62,5
169,5
6
10
403
20
11
NSE0_00666c
57
85 210 210
50
160 160 160 160
590 800
210
26 373
50
13,5
630 840
28769
50 50
hh
NSE0_00667d
62,5
169,5
6
10
34 493
20
NSE0_00669c
160 160 160 160
85 210 210 210
800
590
50
14
40 373 40
50
630
840
287
69
Ø13,5
50 50
m
m
NSE0_00670d
© Siemens AG 2018
51
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Dimensions in mm
Connection dimensions in mm
Safety clearances in mm
1) Values for struts, grids and perforated sheets. When using plates with
conductive surfaces: values on request.
2) Value for plates that cover the lateral openings in the guide frame,
0 mm for struts and grids
3) Ue = 1000 V with breaking capacity H and Z option Z = A05 or breaking
capacity C
4) With insulating shield; for clearance, see "non-conductive parts"
Item number Dimensions
Ue, Z suffix or breaking capacity X 690 V AC, H > 690 V AC, A05, or C
&Grooves (4 mm wide, 5 mm deep) for supporting phase partitions in the system
Auxiliary connector with:
(• SIGUT screw terminals (one-part) 465 (446) 515 (496)
)• Screwless connections 468 518
*Dimension to inside surface of the closed cabinet door 58.0
.Fixing holes 9
/Circuit breaker in connected position 88.5
0Circuit breaker in test position 121.5
1Circuit breaker in disconnected position 140.5
2Space for cable harness to electrical auxiliary circuit connections 20
3Maximum device height 468 518
4Guide frame upper edge 460 510
789 Safety clearances See below
Max. rated circuit breaker current
• Up to 4000 A AC
• 5000 V AC
• 6300 V AC
a40 40 5Clearances
b210 210 245
h35 -- -- Terminal face length
j38
l59 -- --
m80 -- --
SZ III, withdrawable version ... from grounded or non-conductive parts ... from live parts IT system
Above 7At side At rear Above 7At side 8At rear 9Above 7
Arc chute covers Without1) / with Without/with Without/with Without/with Without/with Without/with Without
Operational voltage Standard arc chutes – 4 = 460 mm
500 V AC 460 / 460 0 / 402) 0 / 0 510 / 480 20 / 50 14 / 14 460
690 V AC 460 / 460 0 / 402) 0 / 0 965 / 480 100 / 200 14 / 14 --
Operational voltage, breaking capacity High arc chutes – 4 = 510 mm (> 690 V AC, A05, A16 or C)
690 V AC 510 / -- 0 / -- 0 / -- 965 / -- 100 / -- 14 / -- 5103)
1000 V AC, H 615 / -- 0 / -- 0 / -- 865 / -- 100 / -- 14 / -- --
1000 V AC, C 615 / -- 0 / -- 0 / -- 865 / -- 100 / -- 14 / -- --
1150 V AC 615 / -- 0 / -- 0 / -- 4) 4) 4) --
© Siemens AG 2018
52 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
■
Circuit diagrams
Terminal assignment diagram
Internal wiring
24 V DC input
Remote reset solenoid
G transformer
N transformer
N transformer
ext. voltage transformer Com
ext. voltage transformer
ext. voltage transformer
ext. voltage transformer
0 V DC
24 V DC
G transformer
Stored energy status indication
1st auxiliary release F1 "ST"
S1 "NO"
S1 "NC"
Closing coil
"Ready to close" signal
S2 "NO"
S2 "NC"
F4 only "quick OFF"
F4 only "quick OFF"
2nd auxiliary release: F2 "ST", F3 "UVR", F4 "UVR td"
S3 "NO" or S7 "NO"
S3 "NC" or S7 "NO"
S4 "NO" or S8 "NO"
S4 "NC" or S8 "NO"
EMERGENCY STOP
or jumper
Terminals External wiring
Jumper if no N transformer
Electrical ON button
opt. motor main switch
Charging motor
(Option F02/F12)
e.g. current transformer in the
star point of power transformer
or a summation current
transformer 1200 A /1A
1st tripped signaling switch
(RESET position)
2nd tripped signaling switch S25 1NO
Signaling switch on
2nd auxiliary release
Termination resistor,
if no external CB module!
Not available with communication connection "F02" or "F12".
COM15/COM16 module is at position "-X7".
optional
Accessories
(Auxiliary switch S1, S2 = Standard)
Signaling switch on
1st auxiliary release
Tripped signaling switch (optional)
NSE0_00605r
L1
L2
L3
N
14
13
12
11
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
14
13
12
11
10
9
8
7
6
5
4
3
2
1
L / L+ Us/Uc
Us/Uc
Uc
Uc
Uc
Uc
N / L–
L / L+
N / L–
N / L–
L / L+
L / L+
N / L–
L / L+
L / L+
14
13
12
11
10
9
8
7
6
5
4
3
2
1
N / L–
M
123456789
DPWrite
Enable
Free Free Close Open
+
–+
–+
–
IN OUT
External
Internal
Y1 F1, 2
(sw) (br)
CubicleBUS +
CubicleBUS –
COM15/COM16
F7
S2
S1
S2
S1
S24
S21
S10
S22
S23
S20
S12
L3
L2
L1
© Siemens AG 2018
53
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Configuration aids
Example of an overall circuit diagram for 3WL circuit breakers
(3WL1. ..–.....–4GN4–Z C11+ C22 + K07)
Manual / motorized operating mechanism with stored-energy
feature, with electrical ON button (option C11), with ready-to-
close signaling switch (option C22), with Electronic Trip Unit
LSING with undervoltage release "UVR" (F3), with shunt trip "ST"
(F1), with tripped signaling switch (option K07), with auxiliary
switch 4 NO + 4 NC.
Function diagram of 3WL air circuit breaker
-A1 ETU Electronic Trip Unit
-S1/-S2 1st auxiliary switch block (2 NO + 2 NC)
-S3/-S4 2nd auxiliary switch block (2 NO + 2 NC)
-S7 (optional) 2nd auxiliary switch block, S7 (2 NO) can be used
if there is no S3 – S3 and S7 have the same terminal
assignment/mounting location
-S8 (optional) 2nd auxiliary switch block, S8 (2 NO) can be used
if there is no S4 – S4 and S8 have the same terminal
assignment/mounting location
3WL1. ..-.....-...2 (2 NO + 2 NC) S1+S2
3WL1. ..-.....-...4 (4 NO + 4 NC) S1+S2+S3+S4
3WL1. ..-.....-...7 (6 NO + 2 NC) S1+S2+S7+S8
3WL1. ..-.....-...8 (5 NO + 3 NC) S1+S2+S3+S8
-S10 Electrical ON button
-S11 Internal motor shutdown switch (if spring is tensioned)
-S12 Motor shutdown switch
(no automatic tensioning of spring)
-S20 Ready-to-close signaling switch
-S24 Tripped signaling switch
-F1 1st auxiliary release, shunt release
-F3 2nd auxiliary release, undervoltage release
-F5 Tripping solenoid
-M Motor for "charging energy store"
-P Spring energy store
-QS Actuator lever for "charging energy store"
-Q1 Main contacts
-T1/-T2/-T3 Current transformers
-X5/-X6/-X7/-X8 Terminals
-Y1 Closing coil
-R Display and reset button for Electronic Trip Unit
-X8.9/-X8.10 Connection option: external N transformer
N
mech.
mech.
U<
version
OFF
ON
ON
* Short terminals, if no N transformer
ON
OFF
electr.
release
contact
NSE0_01558b
1
3
5
-X6.12
-X6.10
-X6.4
-X6.2
-X5.10
-X5.8
-X5.6
-X5.4
-X6.11
-X6.9
-X6.3
-X6.1
-X5.9
-X5.7
-X5.5
-X5.3
-X8.9
-X8.10
*
-X6.5
-X7.13
-X5.11
-X6.13
-X6.8
-X5.1
L1
(L+)
L1
(L+)
-X7.9
-X6.7
-X6.14
-X5.12
-X5.2
-X6.6
-X7.12
-X7.14
-S11 -F5
-S24
-S20
-S10
RESET
TRIP
M
-S4
-S3
-S2
-S1
-Q1
P
-Y1
-F1
-F3
-T3
-T1
-T2
2
4
6
ETU
-A1
-S12
R
QS
N
(L-) N
(L-)
L
S
I
G
N
NSE0_01559e
M1
P
1
S20
F1
F2
F3
F4
Y1
Q1 S1 & S2
S3 & S4
T1
T2
T3
T4
2
3
A1
L
S
I
G
N
N
F5
S24 S25
© Siemens AG 2018
54 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC), IEC
Example of the mode of operation of Zone Selective Interlocking function in power distribution
3VL and 3WL circuit breakers used in various staggered levels
Circuit diagram for a Zone Selective Interlocking function with multiple
infeed and several outgoing units with 3WL circuit breakers
ZSI function: Connection using a tie-breaker, use of 3WL circuit breakers
■
More information
Up-to-date information on the Internet at:
http://www.siemens.com/sentron
SENTRON 3WL
SENTRON 3WL SENTRON 3WL SENTRON 3WL
SENTRON 3WL
SENTRON 3WLSENTRON 3VL
NSE0_01897
3
4
5
6
3
4
5
3
4
5
6
6
3
4
5
6
3
4
5
6
3
4
5
6
ZSI
module
ZSI
module
ZSI
module
ZSI
module
ZSI
module
ZSI
module
SENTRON 3WL SENTRON 3WL
SENTRON 3WL
NSE0_01898
3
4
5
6
6
5
1
2
3
4
3
4
5
6
ZSI
module
ZSI module
ZSI
module
SENTRON 3WL SENTRON 3WL
SENTRON 3WL
NSE0_01899
3
4
5
6
6
5
1
2
3
4
3
4
5
6
SENTRON 3WL SENTRON 3WL
3
4
5
6
3
4
5
6
ZSI
module
ZSI module
ZSI
module
ZSI
module
ZSI
module
© Siemens AG 2018
55
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Non-Automatic Air Circuit Breakers up to 4000 A (DC)
General data
■
Technical specifications
1) Make time through activation solenoid for synchronization purposes
(short-time excited) 50 ms.
2) Maintenance means: Replace main contact elements and arc chutes (see
Operating Manual).
3) Further technical specifications on request.
1) At Ue = 220 V DC
2) At Ue = 300 V DC
3) At Ue = 600 V DC
4) At Ue = 1000 V DC
Size III
Type 3WL11 20 3WL12 10 3WL12 20 3WL12 40
Rated current In at 40 °C
Main conductor A 2000 ... 1000 2000 4000
Rated operational voltage Ue
(1000 V version, see Catalog LV 10, order code "A05")
V DC 1000 ... 600/1000 ... 600/1000 ... 600/1000
Rated insulation voltage UiV DC 1000 1000 1000 1000
Rated impulse withstand voltage Uimp
• Main conducting paths
• Auxiliary circuits
• Control circuits
kV
kV
kV
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
Isolating function acc. to EN 60947-2 Yes Yes Ye s Yes
Utilization category B
Permissible ambient temperature
•Operation
•Storage
C
C
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
Permissible load
At rear horizontal main circuit
connections
(Cu painted black)
Up to 40 C
Up to 55 C
Up to 60 C
Up to 70 C
A
A
A
A
2000
1910
1850
1710
1000
1000
1000
1000
2000
2000
2000
1950
4000
3640
3500
3250
Power loss at In for symmetrical loads
Withdrawable circuit breakers W 150 280 770 1640
Switching times
• Make time
• Opening time
• Electrical make time (through activation solenoid)1)
• Electrical opening time (through shunt release)
• Electrical opening time (instantaneous undervoltage release)
ms
ms
ms
ms
ms
35
38
100
73
73
35
34
100
73
73
35
34
100
73
73
35
34
100
73
73
Endurance3)
• Mechanical (without maintenance) Operating cycles
• Mechanical (with maintenance)2) Operating cycles
• Electrical (without maintenance) Operating cycles
• 1000 V version Operating cycles
• Electrical (with maintenance)2) Operating cycles
10 000
15 000
1000
1000
2000
10000
15000
6000
1000
15000
10000
15000
6000
1000
15000
10000
15000
4000
1000
15000
Switching frequency
• 600 V version
• 1000 V version
1/h
1/h
--
20
60
20
60
20
60
20
Mounting position
Degree of protection IP20 without cabinet door, IP41 with door sealing frame, IP55 with cover
Auxiliary conductors (Cu)
Max. number
Auxiliary conductors ×
cross-section
(solid/stranded)
Standard connection = strain-relief clamp
• Without end sleeve
• With end sleeve acc. to DIN 46228 Part 2
• With twin end sleeve
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16); 1 × 2.5 mm2 (AWG 14)
1 × 0.5 mm2 (AWG 20) ... 1 × 1.5 mm2 (AWG 16)
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16)
Optional connection = tension spring
• Without end sleeve
• With end sleeve acc. to DIN 46228 Part 2
2 × 0.5 mm2 (AWG 20) ... 2 × 2.5 mm2 (AWG 14)
2 × 0.5 mm2 (AWG 20) ... 2 × 1.5 mm2 (AWG 16)
Weights 3-pole
4-pole
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
• Guide frames
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
• Guide frames
kg
kg
kg
kg
kg
kg
43
--
--
50
--
--
56
60
31
67
72
37
56
60
31
67
72
37
64
68
45
77
82
54
NSE0_00061a
30° 30°
NSE0_00062a
30° 30°
NSE0_00927
= 1 mm
Dhmax.
and/or
Size III
Type 3WL11 3WL12
Breaking capacity DC DC
Rated short-circuit breaking capacity
Up to 220 V DC
Up to 300 V DC
Up to 600 V DC
Up to 1000 V DC
Icc
Icc
Icc
Icc
kA
kA
kA
kA
20
20
20
20
35
30
25
20
Rated short-time withstand current Icw
0.5 s
1 s
2 s
3 s
kA
kA
kA
kA
--
20
--
--
--
351)/302)/253)/204)
--
--
© Siemens AG 2018
56 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Non-Automatic Air Circuit Breakers up to 4000 A (DC)
■
Characteristic curves
DIGmat S100 characteristic curve
■
Dimensional drawings
DIGmat S100
DIGmat S100 DIGmat S100 drilling pattern
Note:
For dimensional drawings for non-automatic circuit breakers
up to 4000 A (DC), see page 38 to 47.
0,01
0,1
1
10
100
1000
10000
0,1 110
NSE0_01578
[s]
R
= 10 s [B]
2 s [A]
B
A
B
A
R
= 0.4
nR
= 1.0
n
MIN
= 1.25
R
I
= 1.5
R
I
MAX
= 4
In
/
n
= 0.4 ... 1.0
= 2 ... 10 s at 6
= 1.25 ... 4
R
R
I
n
R
R
nn
© Siemens AG 2018
57
Siemens · 04/2018
3WL1 Air Circuit Breakers
3WL1 Non-Automatic Air Circuit Breakers up to 4000 A (DC)
Configuration aids
■
Circuit diagrams
Circuit diagrams of the DIGmat S100 and the 3WL non-automatic air circuit breaker
Application examples of size 2 – non-automatic circuit breakers (DC)
The connection to the circuit breakers is not dependent on
direction and polarity; the circuit diagrams can be adapted
accordingly.
If the parallel or series connections are made directly to the
connecting bars, for thermal reasons the continuous load on the
circuit breakers must only be 80% of the permissible operational
current. If the parallel or series connection is made at a distance
of 1 m from the connecting bars, the circuit breaker can be used
at full operational current load.
]Grounded system
Load
L1
N
PE
AC230
DC24
+
-
X1.2 X1.1 X5.2 X5.1
+
-
DC24
A
C230
X4.i1+
X4.i1-
X4.i2+
X4.i2-
DIGmat S100
+
-
X2.1
X2.3
+
-
-Q01 1 3 5
3WL
X4.01
+
X4.01
-
X4.02
+
X4.02
-
X4.03
+
X4.04
+
X4.04
-
X4.03
-
-K1
-K2 11
12 14
11
12 14
-X6.14 -X5.12
SENTRON
-F1 -F3
-X6.13 -X5.11
-Q01 2 4 6
NSE0_01577a
„Emergency STOP”
Auxiliary power
„Automatic RESET”
Shunt
(60mV)
Excitation / Alarm
Automatic / Reset
Digital output
Digital input
Rated operational
voltage
Required
series-connected
contact gaps at
rated voltage
For 3-pole non-automatic air circuit breakers
(operational currents up to 4000 A/conducting path)
For 4-pole non-automatic air circuit breakers
(operational currents up to 4000 A/conducting path)
Up to 300 V + 10%
1-pole,
2 parallel conducting paths,
only with grounded system
2-pole 1-pole,
3 parallel conducting paths,
only with grounded system
2-pole
2 parallel conducting paths
Over 300 V + 10%
Up to 600 V + 10%
2-pole,
only with grounded system
1-pole,
2 parallel conducting paths,
only with grounded system
2-pole
Over 600 V + 10%
Up to 1000 V + 10%
(version for 1000 V
required, order with
"-Z" and code A05)
1-pole,
only with grounded system
2-pole,
only with grounded system
1-pole,
only with grounded system
NSS0_00539
© Siemens AG 2018
58 Siemens · 04/2018
Configuration aids
3WL1 Air Circuit Breakers
3WL1 Non-Automatic Air Circuit Breakers up to 4000 A (DC)
Application examples of size 1 – non-automatic circuit breakers (DC)
Permissible interconnections
Circuit diagrams for size 1
1000 V DC non-automatic air circuit breakers
■
More information
Up-to-date information on the Internet at:
www.siemens.com/sentron
Load Load
Ground
Non-grounded system Grounded system
+ (-) - (+) - (+)
+ (-)
*B,B;;B
© Siemens AG 2018
© Siemens AG 2018
The information provided in this brochure contains merely general
descriptions or characteristics of performance which in case of actual
use do not always apply as described or which may change as a result
of further development of the products. An obligation to provide the
respective characteristics shall only exist if expressly agreed in the
terms of contract. Availability and technical specifications are subject
to change without notice.
All product designations may be trademarks or product names of
Siemens AG or supplier companies whose use by third parties for their
own purposes could violate the rights of the owners.
Siemens AG
Energy Management
Low Voltage & Products
Postfach 10 09 53
93009 REGENSBURG
GERMANY
Subject to change without prior notice
PDF (3ZW1012-3WL11-0AC1)
PH 0718 60 En
Produced in Germany
© Siemens AG 2018
www.siemens.com/lowvoltage
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© Siemens AG 2018