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Schneider Electric RM4UA31MW

Schneider Electric RM4UA31MW

MPNRM4UA31MW
Obsolete

voltage measurement relay RM4-U - range 0.05..5 V - 24..240 V AC DC

Schneider Electric RM4UA31MW datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

RM4UA31MW key specifications
ParameterValue
TypeVoltage measurement relay
Range of productHarmony Relay
Product or component typeIndustrial measurement and control relays
Dielectric test voltage2.5 kV
Maximum switching voltage440 V AC
Operating voltage tolerance0.85...1.1 Uc
[Ie] rated operational current2 A 158 °F (70 °C) 24 V DC-13 IEC 60947-5-1/1991 2 A 158 °F (70 °C) 24 V DC-13 VDE 0660 3 A 158 °F (70 °C) 115 V AC-15 IEC 60947-5-1/1991 3 A 158 °F (70 °C) 115 V AC-15 VDE 0660 3 A 158 °F (70 °C) 24 V AC-15 IEC 60947-5-1/1991 3 A 158 °F (70 °C) 24 V AC-15 VDE 0660 3 A 158 °F (70 °C) 250 V AC-15 IEC 60947-5-1/1991 3 A 158 °F (70 °C) 250 V AC-15 VDE 0660 0.1 A 158 °F (70 °C) 250 V DC-13 IEC 60947-5-1/1991 0.1 A 158 °F (70 °C) 250 V DC-13 VDE 0660 0.3 A 158 °F (70 °C) 115 V DC-13 IEC 60947-5-1/1991 0.3 A 158 °F (70 °C) 115 V DC-13 VDE 0660
[Ith] conventional free air thermal current8 A
Power consumption in1.5...3.3 VA AC
Maximum power consumption in1.2 W DC
IP degree of protectionIP20 IEC 60529 terminals) IP50 IEC 60529 casing)
Connections - terminalsScrew terminals, 2 x 1.5 mm²flexible with cable end Screw terminals, 2 x 2.5 mm²flexible without cable end

All specifications

RM4UA31MW additional specifications
ParameterValue
Pollution degree3 IEC 60664-1
Shock resistance15 gn 11 ms IEC 60068-2-27
Relative humidity15...85 % 3K3 IEC 60721-3-3
Vibration resistance0.35 ms (f= 10...55 Hz) conforming to IEC 60068-2-6
Non-dissipating shock wave4.8 kV
Protection against electric shocks2 kV level 3 IEC 61000-4-5
Width0.9 in (22.5 mm)
Contacts material90/10 silver nickel contacts
Mechanical durability30000000 cycles
StandardsIEC 60255-6
Category22376-RELAYS-MEASUREMENT(RM4)
Directives73/23/EEC - low voltage directive 89/336/EEC - electromagnetic compatibility
Hysteresis5...30 % adjustable voltage threshold setting
Relay nameRM4U
Time delayAdjustable 0.05...30 s
Output contacts2 C/O
Tightening torque5.3...9.7 lbf.in (0.6...1.1 N.m)
Switching capacity in10 mA 12 V
Internal input resistance71000 Ohm 43000 Ohm 6600 Ohm
Relay monitored parametersOvervoltage or undervoltage detection
Electromagnetic compatibilityElectrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2 Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2
Resistance to fast transients2 kV IEC 61000-4-4 level 3
Disturbance radiated (conducted)CISPR 22 - class A CISPR 11 group 1 - class A
Permissible continuous overload80 V 20 V 60 V
Ambient air temperature for storage-40...185 °F (-40...85 °C)
Permissible non repetitive overload100 A 25 A 80 A 0.1 Uc
Resistance to electromagnetic fields9.1 V/m (10 V/m) IEC 61000-4-3 level 3
Ambient air temperature for operation-4...149 °F (-20...65 °C)
Resistance to electrostatic discharge6 kV contact IEC 61000-4-2 level 3 8 kV air IEC 61000-4-2 level 3
MPN
RM4UA31MW