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Schneider Electric RM4TR31

MPNRM4TR31

Obsolete

PHASE FAILURE RELAY|SQD RM4TR31 PHASE FAILURE RELAY

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Schneider Electric RM4TR31 datasheet (PDF)

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

RM4TR31 key specifications
Parameter	Value
Type	Control relay
Time delay type	Adjustable 0.1...10 s
Range of product	Harmony Relay
Product or component type	Industrial measurement and control relays
Contacts type and composition	2 C/O
Switching voltage	250 V AC
Dielectric test voltage	2.5 kV
Maximum switching voltage	440 V AC
Voltage	500 V IEC
[Ie] rated operational current	2 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 current	8 A
Delay at power up	650 ms

All specifications

RM4TR31 additional specifications
Parameter	Value
Supply frequency	50/60 Hz +/- 5 %
Poles description	3P
IP degree of protection	IP20 IEC 60529 terminals) IP50 IEC 60529 casing)
Number of cables	2
Connections - terminals	Screw terminals, 2 x 1.5 mm²flexible with cable end Screw terminals, 2 x 2.5 mm²flexible without cable end
Terminals description ISO n°1	(25-26-28)OC (L1-L2-L3)CO (15-16-18)OC
Pollution degree	3 IEC 60664-1
Shock resistance	15 gn 11 ms IEC 60068-2-27
Relative humidity	15...85 % 3K3 IEC 60721-3-3
Vibration resistance	0.35 ms (f= 10...55 Hz) conforming to IEC 60068-2-6
Non-dissipating shock wave	4.8 kV
Depth	3.1 in (80 mm)
Width	0.9 in (22.5 mm)
Height	3.07 in (78 mm)
Contacts material	90/10 silver nickel contacts
Mechanical durability	30000000 cycles
Standards	EN/IEC 60255-6
Marking	CE
Category	22376-RELAYS-MEASUREMENT(RM4)
Directives	73/23/EEC - low voltage directive 89/336/EEC - electromagnetic compatibility
Hysteresis	5 % fixed de-energisation threshold
Relay name	RM4-T
9 mm pitches	2.5
Output contacts	2 C/O
Time delay drift	<= 0.5 % within the measuring range
Tightening torque	5.3...9.7 lbf.in (0.6...1.1 N.m)
Operating position	Any position without derating
Output relay state	Tripped, fault present
Overvoltage category	III conforming to IEC 60664-1
Maximum measuring cycle	80 ms
Switching capacity in	10 mA 12 V
Switching threshold drift	<= 0.5 % within the measuring range
Relay monitored parameters	Overvoltage and undervoltage detection Phase sequence Phase failure detection
Product specific application	For 3-phase supply
Control threshold overvoltage	220...300 V
Electromagnetic compatibility	Electrostatic 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 electrostatic discharge - test level: 6 kV (contact) conforming to IEC 61000-4-2 level 3 Resistance to electrostatic discharge - test level: 8 kV (air) conforming to IEC 61000-4-2 level 3
Resistance to fast transients	2 kV IEC 61000-4-4 level 3
Control threshold undervoltage	160...220 V
Disturbance radiated (conducted)	CISPR 11 group 1 - class A CISPR 22 - class A
Setting accuracy of time delay	10 P
Ambient air temperature for storage	-40...185 °F (-40...85 °C)
Resistance to electromagnetic fields	9.1 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 discharge	6 kV contact IEC 61000-4-2 level 3 8 kV air IEC 61000-4-2 level 3
Setting accuracy of the switching threshold	+/-3 %