... mainly used in AC 50Hz/60Hz single-pole 240V or two, three, four-pole 415V circuit foroverload and shortcircuit protection ... devices such as Air Circuit Breaker, Moulded Case Circuit Breaker, Mini Circuit Breaker, Leakage Breaker, ACContactor and Dual power automatic transfer ... by CE&CCE, and passed troughthe ISO9001/2000. Mini Air type circuit breaker(MCB), with CE, CCC, CQC, ISO9001, 4pole, DZ47, ...