... Product DescriptionCDSM2-400(NS MCCB) (MG MCCB) series moulded case circuit breaker is one of new type breakers which this ... 5, According to overload release type: Magnetic release (only instantaneous) the modynamicmagnetic type (dual), electronical release; 6, According to number of ... poles: Two poles, there poles, four poles. 7, The neutral poles (N poles) of four poles MCCB has for types: 8 ...