Non-Illuminated Selector Switch Operator, 30 mm, 3 Position, Maintained / Maintained / Maintained Action, Keyed Type of Operator, Operator Color Chrome, Key Removal Any Position, NEMA Rating 1, 12, 13, 3, 3R, 4, 4X, IP Rating Not Rated, Cam B, Standards CSA Certified, UL Listed, Key Number 501CH