The ” Diameter switch designed for commercial applications needing either 18 or 20 positions per pole. It offers up to 20 positions per pole and capability of adding multiple decks for limitless configurations. It has Index Angle of 18˚, 20˚, 36˚ and 40˚ standard. Current and Voltage Rating: Make and break resistive load 1 amp @ 28 VDC; 0.5 amps @ 115 VAC. Optional features include: Dual Concentric Designs, Rear PC Mount terminals, and Water Resistant Seals.