ZLM30ZLM30L series moulded case circuitbreaker(below for short MCCBELCB), is applicable circuit of AC 50Hz(or 60 Hz), rated insulationVoltage 690V, rated operating Voltage up to 660V(690V), rated operating voltage up to 250V(DC), The rated operating current 3A-800A, For distribute energy of electricity and infrequent making and breaking circuit, and infrequent starting of motor(rated operating current up to 400A)at normal condition they areprovided with the function of the protection against overload and short-circuit and undervoltge.

The MCCB comply with standard of IEC 947-2, GB14048.2 and so on. ZLM30-100 is a sub-series of the ZLM30 series whose frame current is 100A.