Explosionproof Disconnect Switch, Constructional Feature Explosionproof, Dust-Ignitionproof, Voltage Rating 120/240/480/600 VAC, 250 VDC, Current Rating 30 Ampere, Power Rating 5 HP at 120 VAC, 10 HP at 240 VAC, 20 HP at 480 VAC, 25 HP at 600 VAC, 7-1/2 HP at 250 VDC, Number of Poles 3, Fuse Provision Non-Fusible, Operator Type Internal Handle, Cover Type Hinged, Hub Size 1-1/2 Inch, Hub Location Top, Bottom, Enclosure Class I Div 1 and 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 3R/7CD/9EFG, Enclosure Material Epoxy Enamel Double Coated Aluminum, Size 8.25 Inch W x 8.88 Inch D x 14.75 Inch H, Approval UL 894/1203, CSA C22.2