... series moulded case circuit breaker is one of new type breakers which this company adopts international advanced design, manufacture technology ... ; 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, ... making all time; Not closing and opening withthe other three poles. Main specification: Pole No.: 3 pole, 4 pole ...