Siren Marine 120V AC Shore Power Relay - Wired [SM-ACC-ACRE-120]120V AC Shore Power Relay Wired The 120VAC Shore Power Relay is used to detect presence and loss of AC shore power. The relay is meant to be hardwired directly to your AC distribution panel. This relay is the hard wired alternative to the Siren Marine Shore Power Sensor Plug for boats with 120VAC systems. Features: Coil Voltage: 120VAC Contact Current: 10A Quick Guide (pdf)