Explosionproof Circuit Breaker Panelboard, Voltage Rating 120/240 VAC, Current Rating 250 Ampere, Number of Circuits 36, Number of Breakers 36, Number of Breaker Poles 1, Main Circuit Configuration 3 Wire, Branch Circuit Configuration 2 Wire, Cable Size 6 AWG to 250 MCM, Enclosure Material Copper Free Aluminum, Enclosure Finish Grey 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, NEMA 3/3R/4/4X/5/7BCD/9EFG/12, Constructional Feature Explosionproof, Dust-Ignitionproof, Watertight, Corrosion Resistant, Size 19.02 Inch W x 13.07 Inch D x 38 Inch H, Approval UL 887/1203, Applicable Standard NEC, Interrupting Capacity 10000 Ampere, Include (2) Door, (2) O-Ring Gasket, Stainless Steel Bolt