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Molded

Molded Case Circuit Breaker (MCCB)

Lead time
Quantity (pieces)1 - 300> 300
Lead time (days)22To be negotiated
Samples

Maximum order quantity: 1 piece

Features:
  • Wide scope of application:

    It has various configurations such as power distribution, motor starting, differential protection (electronic type), residual current protection (residual current circuit breaker), etc. It is suitable for various application scenarios. The electronic type can set the current and protection actions on site according to the load condition. time.

  • Strong insulation performance:

    The plastic shell has good insulation and protection levels, which protects the equipment and operators well.

  • Strong protection function:

    precise protection, narrowing the scope of power outage; providing all-round protection (three-stage fault current and voltage protection).

Circuit Breaker
WM/E Electronic Knob Type(E)Molded Case Circuit Breaker
TypeWM125/EWM250/EWM400/EWM630/EWM800/EWM1250/E
Frame rating rated current Inm(A)1252504006308001250
Number of poles3、43、43、43、43、43、4
Rated current In(A)32A~125A100A~250A160A~400A400A~630A315A~800A800A~1250A
Rated insulation voltage Ui(v)1000V1000V1000V1000V1000V1000V
Rated impulse withstand voltage Uimp(kV)8kV8kV8kV8kV8kV8kV
rated operating voltage Ue(v)AC400VAC400VAC400VAC400VAC400VAC400V
Rated operating frequency (Hz)50Hz50Hz50Hz50Hz50Hz50Hz
Arcing distance (mm)<50mm<50mm<50mm<50mm<50mm<50mm
Rated ultimate short circuit breaking capacity Icu(kA)50kA50kA50kA~100kA75kA~100kA75kA~100kA85kA
Rated operating short circuit breaking capacity Ics(kA)35kA35kA42kA~65kA50kA~65kA50kA~65kA50kA
WM/R Thermomagnetic Molded Case Circuit Breaker(R)
TypeWM125/RWM250/RWM400/RWM630/RWM800/RWM1250/R
Frame rating rated current Inm(A)1252504006308001250
Number of poles3、43、43、43、43、43、4
Rated current In(A)16A~125A100A~250A225A~400A400A~630A630A~800A800A~1250A
Rated insulation voltage Ui(v)1000V1000V1000V1000V1000V1000V
Rated impulse withstand voltage Uimp(kV)8kV12kV12kV12kV12kV
rated operating voltage Ue(v)AC400VAC400VAC400VAC400VAC400VAC400V
Rated operating frequency (Hz)50Hz50Hz50Hz50Hz50Hz50Hz
Arcing distance (mm)<50mm<50mm<50mm<50mm<50mm<50mm
Rated ultimate short circuit breaking capacity Icu(kA)30kA~100kA30kA~100kA50kA~100kA50kA~100kA65kA~100kA65kA
Rated operating short circuit breaking capacity Ics(kA)15kA~70kA20kA~70kA35kA~75kA35kA~70kA65kA~75kA32kA
WM/L Residual Current Protection Type
TypeWM125/LWM250/LWM400/LWM630/LWM800/L
Frame rating rated current Inm(A)125250400630800
Number of poles3、43、43、43、43、4
Rated current In(A)16A~125A100A~250A160A~400A400A~630A630A~800A
Rated insulation voltage Ui(v)1000V1000V1000V1000V1000V
Rated impulse withstand voltage Uimp(kV)8kV8kV8kV8kV8kV
rated operating voltage Ue(v)AC400VAC400VAC400VAC400VAC400V
Rated operating frequency (Hz)50Hz50Hz50Hz50Hz50Hz
Arcing distance (mm)<100mm<100mm<100mm<100mm<100mm
Rated ultimate short circuit breaking capacity Icu(kA)50kA~85kA50kA~85kA65kA~100kA65kA~100kA65kA~100kA
Rated operating short circuit breaking capacity Ics(kA)35kA~50kA35kA~50kA42kA~70kA42kA~70kA42kA~70kA