Voltage relay AC 230/400V, 0.85, 2 changeover contacts, response delay 0.5 s, rear switching delay 60 s, test button. Siemens switching devices for applications in residential, commercial construction, and industrial applications. The innovative switching devices from Siemens are an essential part of the SENTRON components for electrical installation. With remote switches, switching relays, Insta-contactors, and timers, they offer numerous possibilities for implementing various switching functions. Whether for residential construction, infrastructure, or industrial applications, Siemens provides the right portfolio for all switching functions. This way, you have the right device for every requirement! Siemens switching devices are characterized primarily by: 1. Comfortable and easy mounting and connection technology. 2. Reliable safety during installation thanks to standard touch protection. 3. Extensive and easily mountable accessories. 4. Optimal technology for your safety - only from Siemens.