Harmony Relay. Pre-assembled and ready-to-use interface relay RSB consisting of relay, base, protection module with LED display, retaining bracket and label. Number of contacts - 1, design - relay changeover contact, contact load capacity - 12 A. Coil control voltage - 230 VAC. Plug-in base with screw terminals in separate arrangement for mounting on top hat rail or screwable onto mounting plate. Protection module - varistor. Plastic retaining bracket for fixing and easy removal of the relay. Label for identification. All components are assembled ready for use and the pre-assembled relay can be used immediately.