Single Pole, Double Throw Switch. 15 Amps, 120/277VAC rating, White. Tested to 3 Amps, 24Vdc rating. Oversize silver alloy contacts for long life and better heat dissipation. Side wired terminals accept #14 - #10 AWG copper or copper-clad conductors. Fiber terminal insulation barriers standard. Can be mounted in standard device boxes or in NEMA 1 sheet steel enclosures.