... Circuit-Breakers conform to IEC standards,and comply with CCC,CE,UL,TUV.ROHS certificate DZX2-60DZX4-40 series residual current circuit ... -breaker are suitable for using in circuit of AC 50Hz, ... residual current protection, over-load and short-circuit protection. Type Instantaneous release type PoleFrame rated ... ,15,20,25,32,40 Circuit-Breakers