End plate for terminals. Cover cap snap-on for DIN rail. Additional components for residual current protective devices and circuit breakers from Siemens. The additional components from Siemens are an important part of the SENTRON protection devices for electrical installations. As accessories for RCDs and circuit breakers, they offer many possibilities for implementing various functions. Whether for infrastructure or industrial applications, Siemens provides the right accessories for all RCDs and circuit breakers. This way, you have the appropriate device for every requirement. The Siemens accessories for residual current and circuit breakers are characterized by: 1. Universal compatibility of all additional components. 2. Comfortable and easy installation and connection technology. 3. Reliable safety during installation thanks to standard touch protection. 4. Optimal technology for your safety - exclusively from Siemens.