DZ47PLES-40 earth residual current circuit breaker is mainly suitable for AC 50Hz or 60Hz circuits with a rated voltage 230Vand a rated current up to 40A for personal electric shock and equipment leakage protection, and has overload and short circuit protection function. It can be used to infrequently power on/off the electrical devices and lighting circuits under normal conditions, especially suitable for industrial and commercial lighting distribution systems. The products comply with GB16917.1 and IEC61009-1 standards.