... fractional electric motorsThey also have many merits of high breaking capacity, good reliability of sensitive action, convenient multi-pole assorting, ... long using lifeThey are mainly adapted to the circuit of AC 50/60Hz, 230V in single pole, 400V in ... : 10KAElectric life: 60,000Mechanical life (times): 8,000 Square D-1 Circuit Breakers with Bolt on Type,10KA Breaking Capacity, Black ...