UniCode Non Illuminated Selector Switch, Number Of Steps: 3, Contact Configuration: 4 NO/4 NC, Enclosure: NEMA 3, 3R, 4, 4X, Operation: Maintained, Material: Fiberglass Reinforced Thermoset Polyester, Standard: UL 508, UL 698, UL 1604, ISA 12.12.01, C22.2 No. 25, C22.2 No. 213-M, C22.2 No. 14-M, E10449 C/US UL Listed, Class I, Division 2, Groups B, C, D, Class II, Groups E, F, G, Class III, Class I, Zone 2, Group IIC, For Conjunction With Contactors Or Magnetic Starters For Remote Control Of Motors