JRS4-F Range Thermal Overload Contactor Relay

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JRS4-F Range Thermal Overload Contactor Relay

JRS4-F range thermal overload contactor relay is commonly used in construction, mechanical and metallurgy industries to protect electric motors against damages caused by overload or phase breaking. Also, it has ambient temperature compensation, manual and automatic resetting, setting current adjustment functions, and more. It incorporates two layers, with a current transformer at the lower and a JRS4-d thermal relay at the upper. This electrical apparatus can be used in combination with GSC2-F AC contactor, GSC4-NF interlock switch contactor, and other types of contactors as well.

Type Description



Main Technical Parameters
Parameters\Type JRS4-160FJRS4-250F~400FJRS4-500F
Rated insulation voltage, Ui (V)1000
Ambient temperature (℃)-5~40
Environment condition Relative humidity is not exceeding 50% at the maximum ambient temperature of 40℃; Relative humidity is not exceeding 90% at 20℃
Elevation(m)≤2000
StandardIEC60947-4、GB14048.4
Storage environmentTemperature: -25℃ ~ 55℃;
Relative humidity: 95% (at 25℃)
Pollution gradeClass 3
Protection grade of exterior frame IP10
Connectable minimum load of auxiliary circuit 24V 10mA
Main circuit wiring capacity Wire cross section area (mm2)95150185
Wire number122
Copper bar (mm)25×330×440×5
Copper bar number222
Wiring capacity of auxiliary circuit wiring terminals Soft wire without wiring terminals 1 or 2 wire 1~2.5 (mm2)
Soft wire with wiring terminals1 or 2 wire 1~2.5 (mm2)
Hard wire without wiring terminals1 or 2 wire 1~2.5 (mm2)
Tightening Torque1.7 (N.m)
Setting Current Adjustment Range
TypeCurrent
adjustment
range (A)
Control power (AC3, 50/60Hz)Fuse for
short-circuit
protection (A)
Compatible
AC contactor
type
220V KW280V KW415V KW440V KW500V KW660V KW1000V KWA Mg G
JRS4-
160F
101-160334563806380759090100129140150160160250GSC2-115~185F
JRS4-
250F
158-2505963100110110129129140132160180200250250400GSC2-150~265F
JRS4-
330F
206-3307580129150132160147160185200220257330400330500GSC2-225~330F
JRS4-
400F
250-40090110160185180200180220220257280335400485400630GSC2-265~400F
JRS4-
500F
320-500129140220257250280295315375445526600526600500800GSC2-330~500F
Wiring Diagram

Main circuit Auxiliary circuit
Outline and Installation Dimensions
TypeAmaxBCDE
JRS4-250F
JRS4-330F
JRS4-400F
JRS4-500F194164554530

TS213 is a specialized thermal overload contactor relay manufacturer and supplier based in China. Our company also provides machine interlock switch contactor, capacitor switching contactor, residual current leakage circuit breaker, and more.

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