... long life 3)reliable 1, Product Name: Indoor high voltage Vacuum Circuit Breaker 2, Product Type:CLZN63-12(VS1) 3, Product Introduction CLZN63 ... be used in industrial and mining enterpriese,substation and so on ,its rated current is 630A-4000A.The products meet ... structure of switch boby intergrated with the operating mechanism installed on the form ,Applicatable to all types of fixed type switchgear ...