applicable circuit of AC 50/60Hz, rated insulation voltage 690V, Rated current 16-250A,The products conforms to IEC60947-2 Rated current 16-250A, for distribute energy of electricity & infrequent making& breaking circuit abnormal conditions, protecting when circuit is overloaded,short circuit. The products conforms to IEC60947-2 standard.TypeAM5-125AM5-250Poles number33Rated current In(A)16, 20, ...