1. Application

ZLM3L series with residual current protection moulded case circuit breaker (hereinafter called circuit breaker) is applicable circuit of AC 50Hz, ratedoperation voltage 400V,rated operating current 630V for distribution energy of electricity and infrequent making and circuit, in normal conditions. The breaker has protection functions of over load, short circuit under voltage to protect circuit and equipment from damage, and offers fire protection since long-term ground fault. provided with the function of the protection against overload and short circuit and under voltage.



2.Standard： IEC60947-1、GB14048.1 General rules

IEC60947-2、GB14048.2 Low voltage circuit breaker

IEC60947-4、GB14048.4 Connector and electric starter

IEC60947-5-1及GBT14048.5 Electrical equipment of electromechanical control circuit

breaker