Accessories for 3KD size 1 direct drive, gray Standard version lockable in the off position with three padlocks 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 break switches and transfer switches can be used for different requirements and upgraded at any time. www.siemens.de/schaltgeraete. Siemens offers a comprehensive portfolio of protection, switching, measuring and monitoring devices, distribution systems as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.