Enclosed Circuit Breaker, Type Bolted Enclosure, Constructional Feature Explosionproof, Dust-Ignitionproof, Watertight, Breaker Type Cutler-Hammer, EHD, Trip Type Non-Interchangeable, Voltage Rating 240 V, Current Rating 50 Ampere, Interrupting Rating 18000 Ampere at 240 VAC, 14000 Ampere at 480 VAC, Number of Poles 3, Hub Size 1-1/2 Inch, Hub Location Dead End, Enclosure Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 4/4X, Enclosure Material Copper Free Aluminum, Enclosure Finish Gray Epoxy Powder Coated, Shaft/Handle Material Stainless Steel, Approval UL 1203, CSA C22.2, Material Neoprene (O-Ring), Stainless Steel (Hinges)