Explosionproof Non-Illuminated Selector Switch, Type Knob, Contact Rating 600 VAC 10 Ampere, Operation Type Maintained/Maintained/Momentary, Contact Configuration 4NO-4NC, Number of Positions 3, Throw Left-Center-Right, Enclosure Material Copper-Free Aluminum, Enclosure Class I Div 1 Group C D and Div 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 3/7CD/9EFG, Approval UL 508/698/1203, Constructional Feature Explosionproof, Application Hazardous Location, Number of Circuits 4