Single-pole terminal cover for circuit breakers. Additional components for residual current protective devices and circuit breakers from Siemens. Siemens' additional components are an essential part of the SENTRON protection devices for electrical installations. As accessories for RCDs and circuit breakers, they offer numerous possibilities for implementing various functions. Whether for infrastructure or industrial applications, Siemens provides the right accessories for all RCDs and circuit breakers, ensuring that you have the appropriate device for every requirement. The Siemens accessories for residual current and circuit breakers are characterized primarily by: 1. Universal compatibility of all additional components. 2. Convenient and straightforward assembly and connection technology. 3. Reliable safety during installation thanks to standard touch protection. 4. Optimal technology for your safety - exclusively from Siemens. Siemens offers a comprehensive portfolio of protection, switching, measuring, and monitoring devices, distribution systems, as well as switches and sockets for a safe and efficient electrical infrastructure in buildings and industry.