Eaton Heavy duty single-throw non-fused safety switch, Single-throw, 100 A, NEMA 3R, Painted galvanized steel, Non-Fusible, Three-pole, Three-wire, 20 at 240 Vac TD 1 Ph, 40 at 480 Vac TD 1 Ph, 50 at 600 Vac TD 1 Ph, 40 at 240 Vac TD 3 Ph.