Harmony Relay. Solid state relay for mounting on a heat sink or on a mounting plate. The low internal voltage drop reduces the power loss heat. Switching voltage 48-660 VAC. Current 50 A. Phase 1. Behavior zero-voltage switching. Control voltage 4-32 VDC. Display LED. Dimensions 45x59x35 mm. Hockey puck design. Terminals with telescopic screws make it easier to connect cables with ring lugs and cable lugs. A heat analysis must be carried out when selecting the separate heat sink.