Accessories for 3KC3, 3KC6 auxiliary switches include 3 changeover contacts: 1 changeover contact for position I, O, II for 40-160A with separate contacts includes 1 piece including screw set Comprehensive accessories for increased flexibility. From connecting bridges and auxiliary switches to various drives, fourth poles or contact covers: With a wide range of accessories, the load disconnectors and mains transfer switches can be used for different requirements and retrofitted at any time.