1, Rated current up to 63A, rated voltage up to 230/400V, 2, MCB provide circuits with overload and short-circuit protections. Scope of applicationMCB CZ47(DZ47) series circuit breakers are maily applied to the AC 50Hz/60Hz circuit with rated voltage 230V/400V or less,rated current up to 63A and provide circuits of modern buildings with overload and short-circuit protections, and it can also be ...