White-Rodgers™ Fan Relay, Heavy Duty, 1 mA, 50/60 Hz Frequency, 24 VAC Coil, NO-NC SPST Contact Form, 12/60 A at 125 VAC, 8/48 A at 250 VAC, 18 A at 277 VAC Contact, 1 Pole, Quick-Connect Terminal, Totally Enclosed Enclosure, -40 to 150 deg F, 1.265 in L x 1.265 in W x 2.67 in H Dimensions