... =constant(long-time overload protection)12=1-2-3-4-6-8-10XInT2=0.05S,0.1S,0.25S,0.5S ... delay protection)I4=0.2-0.3-0.4-0.6-0.8-0.9-1Xint4=0.1S,0.2S,0 ... fixed M fixed800--800,1000,1250--1000,1250,1600 ZSS-160l/3P ABB MCCB circuit breaker high qulity&fast delivery