1.standard: IEC60947-3 2.Number of poles: 1, 2, 3, 4 3.Rated Current (In): 16, 25, 40, 63, 80, 100, 125 A Isolating Switch (MS125,Crabtree model) For use as switch disconnectors in all types of circuit an defined in the 16th Edition of the IEE Wiring regulations. IEC60947-3 ISOLATING SWITCH