Harmony Relay. Pre-assembled and ready-to-use interface relay RSB consisting of relay, base, protection module with LED display, retaining bracket and label plate. Number of contacts - 2, design - relay changeover contact, contact load capacity - 8 A each. Coil control voltage - 120 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 plate for identification. All components are assembled ready for use and the pre-assembled relay can be used immediately.