Explosionproof Lighting Distribution Panelboard, Type Main Lug, Constructional Feature Explosionproof, Dust-Ignitionproof, Watertight, Voltage Rating 120/240 VAC, Current Rating 100 Ampere, Configuration 1 Phase 3 Wire, Number of Circuits 12, Number of Breaker Poles 1, Interrupting Rating 10000 Ampere, Enclosure Material Copper Free Aluminum, Enclosure Finish Gray Epoxy Powder Coated, Enclosure Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, Class I Zone 1 Group IIB, NEMA 4/4X/7BCD/9EFG, Mounting Feet, Size 21 Inch W x 11 Inch D x 21 Inch H, Approval UL 1203, Material Copper-Free Aluminum (Cover, Breaker Operator), Stainless Steel ( Hinge, Cover Bolt), Copper (Bus Bar), Neoprene (O-Ring), Application Hazardous Location