Crouse-Hinds Circuit Breaker, 1-Gang Explosionproof, Series: EFD, 240/600 VAC, 20/30 A, 1 hp, 2 hp, 3 hp Power, QOU Frame, Thermal Magnetic Trip, 3 Pole, Handle Actuator, Bolted/Ground Joint/Feed-Through Connection, NEMA 3/7B/7C/7D/9E/9F/9G/12 Enclosure, Flush/Wall Mounting, 3-1/2 in W x 4-7/8 in D x 6-3/32 in H Dimensions, Feraloy® Iron Alloy, Aluminum Acrylic Painted/Electro-Galvanized,