Accessories for 3KC0 SZ 1 direct operating mechanism DIN43880 gray without cover for 3KC0 SZ1 3 and 4-pole contains 1 unit Comprehensive accessories for increased flexibility. From bridging bars through auxiliary switches to various drives, fourth poles or contact covers: With a wide range of accessories, the switch disconnectors and transfer switching equipment can be used for a wide variety of requirements and retrofitted at any time.