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KNM1L Moulded Case Circuit Breaker

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  • KNM1L
  • Korlen

   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 class 100 225 400 630
Rated current In(A) 40,50,63,80,100 125,140,160,200,225, 225,315,350,400 400,500,630
Rated voltage AC(V) 400 400 400 400
Rated insulation voltage AC(V) 750 750 750 750
Rated pulse voltage AC(KV) 8 8 8 8
Ultimate short-circuit breaking capacity Icu(KA) AC400V 25 25 25 25
Operative short-circuit breaking capacity Ics AC400V Ics=50%Icu
Rated residual operating current(mA)I△n Undelay 30/100/500,100/300/500 100/300/500 300/500/1000
Delay 100/300/500 100/300/500 100/300/500 300/500/1000
Mechanical life 8500 7000 4000 4000
Electric life 1500 1000 1000 1000
Rated residual un-operating current(mA) 1500 1000 1000 1000
Working time of the residual current protection I△n 2I△n 5I△n 10I△n
Maximum breaking time(s)
 
Undelay 0.2 0.1 0.04 0.04
Delay 0.5/1.15/2.15 0.35/1/2 0.25/0.9/1.9 0.25/0.9/1.9
Outline dimensions(mm) W 122 142 198 280
L 150 165 257 280
H 90 90 106.5 115.5

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Tel: 0086-577-62207777 / 62870277
Add: NO.258 Weiershi Road,Yue Qing Economic & development Zone(yanpan),zhejiang China
E-mail: korlen@korlen.com
Fax: 0086-577-62661666

Circuit Breaker

Low Voltage

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