Receptacle and Disconnect Switch, Type Interlocked, Constructional Feature Explosion-Proof, Dust-Ignitionproof, Voltage Rating 600 VAC, Current Rating 100 Ampere, Number of Poles 4, Number of Wires 3, Door Type Spring Door, Fuse Provision Non-Fusible, Grounding Style 2, Shell, Extra Pole, Material Copper-Free Aluminum, Enclosure Class II Div 1 and 2 Group F G, Class III, NEMA 3/3R/4/4X/9FG