Accessories for BG1/3KD BG1/2 Conversion kit blocking pin for deactivating the test function of the auxiliary switches contains 10 pieces Comprehensive accessories for increased flexibility. From connecting bridges to auxiliary switches to various drives, fourth poles or contact covers: With a wide range of accessories, the load break switches and mains 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.