Under-voltage release DC 24V, with 6 terminals for circuit breakers 5SL4, 5SY, 5SP residual current circuit breakers 5SU1, residual current 5SV (for 5SU1, handle connector 5ST3805-1 is required). Additional components for residual current protective devices and circuit breakers from Siemens. The additional components from Siemens are an important part of the SENTRON protective devices for electrical installations. As accessories for residual current and circuit breakers, they offer many possibilities for implementing various functions. Whether for infrastructure or industrial applications, Siemens provides the right accessories for all residual current and circuit breakers. This way, you have the appropriate device for every requirement. Siemens accessories for residual current and circuit breakers are characterized primarily by: 1. Universal compatibility of all additional components. 2. Convenient and easy mounting and connection technology. 3. Reliable safety during installation thanks to standard touch protection. 4. Optimal technology for your safety - only from Siemens. Siemens offers a comprehensive portfolio of protective, switching, measuring, and monitoring devices, distribution systems, as well as switches and sockets for safe, efficient electrical infrastructure in buildings and industry.