Appleton® UNILETS™ Explosion proof Tumbler Switch, 1-Gang Feed-Through, Series: EDSC, 120 to 277 VAC, 20 A, 1 Pole, Lever Actuator, Threaded Connection, NEMA 7CD/9EFG, Surface Mounting, Malleable Iron, Triple Coated, 5.38 in H x 3 in W x 4.69 in D Dimensions