Detailed Product Description MGB-CS,CP,SS series Moulded Case Circuit Breaker is a kind of economic breaker, has the features as following, such as steady and reliable property, reasonable structure, beautiful style, small volume, etc. This breaker applies to the circuit with AC50/60Hz, rated insulation voltage 660V, max. rated current 1250A as on-off operation, and take effect, it also can be used as unfrequent conversion of line and infrequency.