Harmony Relay. Solid state relay for mounting on a heat sink or on a mounting plate. The low internal voltage drop reduces the heat loss. The factory-fitted heat dissipation foil enables direct and clean installation without the use of thermal paste. The internal diagnostics enable monitoring of the load circuit for wire breakage, short circuit or missing mains voltage and switching function of the semiconductor, which is output via LED display and fault message output. A button enables testing of the switching output. Switching voltage 24-300 VAC. Current 125 A. Phase 1. Behavior zero-voltage switching. Control voltage 3-32 VDC. Display LED. Dimensions 45x59x44 mm. Hockey puck design. Terminals with telescopic screws make it easier to connect cables with eyelets and cable lugs. Special feature: pre-assembled heat dissipation foil, diagnostic function of the switching output with diagnostic output and button for testing. A heat analysis must be carried out to select the separate heat sink.