Explosionproof Cast Control Center, Constructional Feature Explosionproof, Dust-Ignitionproof, Voltage Rating 600 VAC, Operator Type Button, Pilot Light Type 6 V Transformer, Enclosure Material Shot Blast Copper-Free Aluminum, Enclosure Class I Div 1 and 2 Group B C D, Class I Zone 1 and 2 Group IIA IIB, Class II Div 1 and 2 Group E F G, Class III, NEMA 4/7BCD/9EFG, Approval UL 886, CSA C22.2, Inner Size 22.5 Inch L x 16.44 Inch W x 5.75 Inch D, Overall Size 27.31 Inch L x 21.5 Inch W x 9.06 Inch D, Cover Thickness 1.25 Inch, Weight 130 Lb