MCB断路器

MCB Breaker L7 MCB breakerbelongs to the advanced level of the nineties in the world instead of the older generation of L7.They have protective function as shortage as overload,and are used in lighting distribution system in industry,commerce and dwelling,and protect fractional electric motors.And they also have many merits of high protective grade (up to IP20),high break capacity,reliable sensitive action,convenient,multiple assembling.Long life etc,they are mainly adapted to the circuit of AC50Hz,230V in single pole,400V in double,three,four poles for protecting overload and short circuit.Meanwhile,they are also used in turning on or off the electric apparatus and lighting circuit under the normal condition. L7 MCBbreaker specification: Electrical specificationConforms to standard of electrical:EN60898(IEC898) GB10963-99Rated current(Ue):230V/440V; 50/60HZRated breaking capacity:10KA IEC898(0.5 63A) 15KA IEC947-2(0.5 63A)Short circuit breaking capacity of DC:Max.48V(L7...,10KA)single pole Max.250V(L7-DC,6KA)single polePerfermance:C,D charactisistic curveMax. fuse that can be connected to:100AgL(10KA)Selective grade:3Working ambient temperature:-5 TO+40Enclosed protective class:P40(Under mounting)Life:Electrical MechnicalNot less of 8000times switching operation Not less of 20000 times switching operation