OMRON G3NA-420B-DC5-24 Puck Style Solid State Relay, 5 to 24VDC. More details: Solid State Relay, Max. Output w/Heat Sink 20A, Input Voltage 5 to 24VDC, Voltage Output 200 to 480VAC, Turns On At Zero Cross, 3 Phase, Switch Type Photocoupler, Case Color Beige, Standards UL, CSA