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KNM1L Moulded Case Circuit Breaker
KNM1L Moulded Case Circuit Breaker
KNM1L Moulded Case Circuit Breaker
KNM1L Moulded Case Circuit Breaker
KNM1L Moulded Case Circuit Breaker
KNM1L Moulded Case Circuit Breaker

KNM1L Moulded Case Circuit Breaker

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KNM1L series residual current circuit breaker (mccb with rccb ) are applies at the power distribution network of ax 50/60hz, rated operation voltage of 400v (690v)

Sphere of application
  KNM1L series residual current circuit breaker (mccb with rccb ) are applies at the power distribution network of ax 50/60hz, rated operation voltage of 400v (690v) and bellow ,its rated current up to 800A.They  can also be up to 800A .They can protect people against indirect contact  and prevent fire disaster caused by insulation and ground fault .They can also be used to distribute electric power and protect power equipment against overload and short current ,and can change the circuit and start motor infrequently.


Electricity accessories:
*Shunt trip release 
*Undervoltage
*Auxiliary contact
*Alarm contact
*Auxiliary contact and alarm contact
*Rotary handle operation mechanism
*Motor operation mechanism
*Busbar

Frame class100225400630
Rated current In(A)40,50,63,80,100125,140,160,200,225,225,315,350,400400,500,630
Rated voltage AC(V)400400400400
Rated insulation voltage AC(V)750750750750
Rated pulse voltage AC(KV)8888
Ultimate short-circuit breaking capacity Icu(KA)AC400V25252525
Operative short-circuit breaking capacity IcsAC400VIcs=50%Icu
Rated residual operating current(mA)I△nUndelay30/100/500,100/300/500100/300/500300/500/1000
Delay100/300/500100/300/500100/300/500300/500/1000
Mechanical life8500700040004000
Electric life1500100010001000
Rated residual un-operating current(mA)1500100010001000
Working time of the residual current protectionI△n2I△n5I△n10I△n
Maximum breaking time(s)
 
Undelay0.20.10.040.04
Delay0.5/1.15/2.150.35/1/20.25/0.9/1.90.25/0.9/1.9
Outline dimensions(mm)W122142198280
L150165257280
H9090106.5115.5


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