The RM4JA31F is a current measurement relay by Schneider Electric, designed for precise current measurement with adjustable response times.
Product ModelRM4JA31F
Product ID33694
Stock on Request
Last updated: 8/29/2026
Key Features
1
FeaturePrecise current measurement with adjustable response times (0.05...30 s)
2
FeatureOvercurrent or undercurrent detection for reliable operation
3
FeatureCompact design with a weight of 0.35 lbs
4
FeatureSuitable for a wide range of applications, including industrial and commercial use
5
FeatureCompliant with various AC frequencies (50/60 Hz)
Technical Specifications
Detailed engineering parameters based on manufacturer documentation
Specifications may be subject to change without notice
Parameter
Value
Parameter
Value
Range of Product
Harmony Relay
Relay Type
Current measurement relay
Product or Component Type
Industrial measurement and control relays
Relay name
RM4J
Relay monitored parameters
Overcurrent or undercurrent detection
time delay
Adjustable 0.05...30 s
Maximum power consumption in VA
3.3 VA AC
Measurement range
0.3...30 mA current AC 50/60 Hz0.3...30 mA current DC10...100 mA current AC 50/60 Hz10...100 mA current DC100...1000 mA current AC 50/60 Hz100...1000 mA current DC
Contacts type and composition
2 C/O
Maximum switching voltage
440 V AC
operating voltage tolerance
0.85...1.1 Uc
Output contacts
2 C/O
Maximum measuring cycle
80 ms
Internal input resistance
33 Ohm10 Ohm1 Ohm
Permissible continuous overload
1.5 A0.15 A0.05 A
Permissible non repetitive overload
5 A0.2 A0.5 A
Setting accuracy of the switching threshold
+/-5 %
Switching threshold drift
<= 0.06 % per degree centigrade depending permissible ambient air temperature<= 0.5 % within the supply voltage range (0.85...1.1 Un)
Setting accuracy of time delay
10 P
Time delay drift
<= 0.07 % per degree centigrade depending on temperature<= 0.5 % within the supply voltage range (0.85...1.1 Un)
Hysteresis
5...30 % adjustable current threshold setting
marking
CE : LVD 73/23/EECCE : EMC 89/336/EEC
Overvoltage category
III IEC 60664-1
[Ui] rated insulation voltage
500 V IEC
Supply disconnection value
> 0.1 Uc
Operating position
Any position without derating
Connections - terminals
Screw terminals, 2 x 1.5 mm²flexible with cable endScrew terminals, 2 x 2.5 mm²flexible without cable end
Tightening torque
5.3...9.7 lbf.in (0.6...1.1 N.m)
Mechanical durability
30000000 cycles
[Ith] conventional free air thermal current
8 A
[Ie] rated operational current
2 A 24 V DC-13 158 °F (70 °C) IEC 60947-5-1/19912 A 24 V DC-13 158 °F (70 °C) VDE 06603 A 115 V AC-15 158 °F (70 °C) IEC 60947-5-1/19913 A 115 V AC-15 158 °F (70 °C) VDE 06603 A 24 V AC-15 158 °F (70 °C) IEC 60947-5-1/19913 A 24 V AC-15 158 °F (70 °C) VDE 06603 A 250 V AC-15 158 °F (70 °C) IEC 60947-5-1/19913 A 250 V AC-15 158 °F (70 °C) VDE 06600.1 A 250 V DC-13 158 °F (70 °C) IEC 60947-5-1/19910.1 A 250 V DC-13 158 °F (70 °C) VDE 06600.3 A 115 V DC-13 158 °F (70 °C) IEC 60947-5-1/19910.3 A 115 V DC-13 158 °F (70 °C) VDE 0660
Switching capacity in mA
10 mA 12 V
Switching voltage
250 V AC
Contacts material
90/10 silver nickel contacts
Number of cables
2
Width
0.9 in (23 mm)
Height
3.07 in (78 mm)
Depth
3.1 in (80 mm)
Terminals description ISO n°1
(25-26-28)OC(C-B1-B2-B3)CO(A1-A2)CO(15-16-18)OC
Output relay state
Tripped if A measured > A setTripped if V measured > V set
9 mm pitches
2.5
Net Weight
0.379 lb(US) (0.172 kg)
Electromagnetic compatibility
Electrostatic discharge - test level: 6 kV level 3 (contact discharge) conforming to IEC 61000-4-2Electrostatic discharge - test level: 8 kV level 3 (air discharge) conforming to IEC 61000-4-2
