Surface mount, range and dryer. Meets all UL 498 requirements. For use with copper or aluminum wire, 75° Celsius rated terminals. Lay-in terminals accept up to number 4 wire. 3/4 in and 1 in knockouts and adjustable cord clamp allow for wiring from bottom or back. Size: 2-3/32 in x 2-1/2 in x 4-3/4 in NEMA 14-30.