Solid State Relay, Input or Control Voltage 90 to 280V AC, Output or Controlled Voltage Range 48 to 480V AC, Max. Output Amps w/Heat Sink 50, Heat Sink Not Included, Switch Type SCR, Contact Form - Relay SPST-NO, Relay Turns On At Zero Crossing, Input Power Consumption (Burden) 1.3 to 4.8VA, Mounting - Relay Surface, Finger Safe Yes