831 Voltage Sensing Relay/SPDT 15 Amp Rating Input Indication Green LED Output Indication Red LED Umax Time Setting Umin Supply Terminals UL Listed File No. E234203 WHITE Output Terminals WHITE DIN Mount General Specifications (@ 25C) Output Characteristics Number and type of Contacts Contact Material Current rating Switching voltage SECTION 5 Minimum Switching Requirement Indication Input/Sensing Characteristics Voltage Range Absolute Input Voltage Maximum Upper Sensing Voltage Range Lower Sensing Voltage Range Maximum consumption Indication Timing Characteristics Time Scales Time Ranges Available Tolerance Repeatability Operate Time Release Time Performance Characteristics Electrical Life Mechanical Life Dielectric strength Terminal Wire Capacity Terminal Torque (maximum) Environment Product certifications Ambient air temperature around the device Degree of protection Weight 5/8 (UL 508) 831VS-120A SPDT Silver Alloy 15 240 AC, 50/60 Hz 24 DC 1/2 @ 120VAC 1 @ 240 VAC B300 100 Red 831VS-240A SPDT Silver Alloy 15 240 AC, 50/60 Hz 24 DC 1/2 @ 120VAC 1 @ 240 VAC B300 100 Red 120 AC 200 AC 80....150 AC 30....99 1.2 Green 240 AC 280 AC 160....276 AC 30....99 1.2 Green sec % % ms ms 1 0....10 5 1 25 20 1 0....10 5 1 25 20 V V AWG (mm2) in lb (Nm) 100,000 10,000,000 2500 AC 1000 AC 14 (2.1) 7.1 (0.8) 100,000 10,000,000 2500 AC 1000 AC 14 (2.1) 7.1 (0.8) UL, CE -30...+70 -20...+55 IP 20 71 UL, CE -30...+70 -20...+55 IP 20 71 Units @ 240 VAC, 24 VDC A V V HP HP Pilot Duty mA Blinks = Timing On = Energized LED LED AC/DC Mechanical Setting Constant Voltage and Temperature Maximum Maximum Operations @ Rated Current (Resistive) Unpowered Input to Contacts Between Open Contacts Standard version Storage Operation V V V % VA C C grams Magnecraft Solution Guide 105A www.magnecraft.com 847-441-2540 The 831 voltage sensor is a single phase AC voltage sensing device that is capable of monitoring and reacting to over and under voltage conditions. This product is designed to be wired across terminals A1 and A2 with the voltage that is being monitored. The two LED lamps indicate both when the input voltage is present (Green LED) and also when the output is energized (Red LED). The Umax dial is used to set the upper trip-point for the voltage sensor. The Umin dial is a percentage of the Umax dial and is used to set the lower trip-point for the voltage sensor. The timing dial is used to delay the transfer of the contacts, from 0 to 10 seconds, when a set point has been violated. Optional Panel Adapter (16-788C1) See Section 3 p.18 Standard Part Numbers Part Number 831VS-120A Input Voltage 120 VAC Timing Range 0s...10s 831VS-240A 240 VAC 0s...10s BOLD-FACED PART NUMBERS ARE NORMALLY STOCKED Sensing Voltage Range Contact Configuration Rated Load Current Upper: 80...150 VAC SPDT 15 Amps Lower: 30...99% Upper: 160...276 VAC SPDT 15 Amps Lower: 30...99% Part Number Builder 0.63 (16) 1.35 (34.2) Relay Style VS = Voltage Sensor 2.6 MAX (65) - Input Voltage 120A = 120 VAC 240A = 240 VAC 0.7 (17.6) 0.6 (14.2) 0.13 (3.4) SECTION 5 Series 831 = SPDT WIRING DIAGRAM INPUT VOLTAGE 0.2 (5) 3.5 (90) 1.8 (45.3) Un + - A1 A2 1.4 (35) 2.7 (67.5) 0.3 (7.4) 15 0.236 (6) Magnecraft Solution Guide 105A 0.6 (16) 16 18 15 - COMMON 16 - NORMALLY CLOSED 18 - NORMALLY OPEN 5/9