Wireless Relay and Transmitter Coil Voltage 277V AC Communication Method Wireless 902 MHz Contact Form SPDT Current Rating 20 A Mounting Style Surface NEMA Enclosure Rating 1 Body Depth 1.8 in Body Height 2.3 in Body Width 3.2 in Contact Material Silver Alloy Contact Rating (AC) 10 A @ 120V (NO) 16 A @ 277V (NO) 20 A @ 277V Features Dry Contact Input Wireless Communication For Use With Enocean 902 MHz Switches/Transmitters Frequency 60 Hz Horsepower @ 120V AC 1 hp