The series of plastic circuit breaker applies to the exchange of 50Hz or 60Hz, rated voltage insulated 690V (residual current circuit breaker for 500), the largest rated voltage 690V (residual current circuit for 400V), rated current 10-2000A in the low-voltage power grid. For general distribution, shell frame 400A rated current and below the circuit breaker can also be used as motor protection. Power distribution circuit breakers used in the distribution network for the distribution of power and as a power line and equipment overload and short circuit protection. Electrical short-circuit protection devices used in the 400V power distribution networks used as a cage-type motor off and running middle and short-circuit and overload protection.
HLM1L the remainder of the current series MCCB In addition to the above purposes, but also with personal equipment, electric shock and leakage protection may also be used to prevent damage to the insulation of equipment have ground fault current caused the fire risk