... or 4 Rated Ultimate Short-circuit Breaking Capacity Icu(kA)(effective value) AC400V: 80, 100, 120 ... 65, 75 Rated Ultimate Short-circuit Breaking Capacity Icu(kA)(effective value) AC400V: 50, 80, 100 AC690V ... 50, 65 Rated Short-circuit making Capacity Icm(kA)(peak) AC400V: 176, 220 AC690V: 105, 143 ... , 165 Rated Short-circuit Withstand Current (1s)Icw(kA)(effective value) AC400V: 50, 80, 100 AC690V: ...