Enclosed Pre-Wired Relay, Coil Voltage 30V AC, Contact Form SPDT, 3PST-NO, 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/DC, NEMA Enclosure Rating 1, Body Depth 1.8 in, Body Height 4 in, Body Width 4 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, Horsepower @ 240V AC 1/6 hp