... ranges, standard, hi-breaker distrubution system. MCCB(NF circuit breaker, mccb switch) NF-CW series is a kind of economic breaker, ... ,10,15,20,305/55/2.52.5/1.52.5/1.0--3NF50-CW310,20,30,40,505/1010 ... /7.57.5/57.5/52.5/1.5-NF63-CW310,20,30,40,50,635/1010 ... /7.57.5/57.5/52.5/1.5-NF125-CW360,75,100.12550/4230/207.5 ... ,80085/6050/3550/3035/2525/1815/10 MCCB(NF circuit breaker, mccb switch)