Enclosed Pre-Wired Relay Coil Voltage 277V AC Contact Form SPDT Current Rating 10 A Mounting Style Surface Nipple Size 0.50 in NPT Contact Rating (AC) 10 A @ 277V Contact Rating (DC) 10 A @ 28V Input Voltage 10 to 30V AC 208 to 277V AC/DC NEMA Enclosure Rating 1 Body Depth 1.5 in Body Height 2.8 in Body Width 1.7 in Contact Material Gold Flashed Silver Cadmium Oxide For Use With Exhaust Fans Motors Vacuums Frequency 50/60 Hz Horsepower @ 120V AC 1/6 hp