EZC100H3063 Circuit breaker 63 A – 3 poles 3d.  EZC series of MCCB are used in distribution network of AC50/60Hz, rated operational voltage 440V and the current from 15A to 630A. It is used for giving and spreading power and protecting circuit. Power and electrical equipment from overload and short-circuit damage, which will improve the reliability and continuity of power supply.