Gardner Bender GSW-16  Heavy-Duty Electrical Toggle Switch, DPDT, ON-(OFF)-ON, 20 A/125V AC, Screw Terminal Perfect for industrial equipment or emergency lighting Specifications: 10 A 277 V AC / 20 A 125 V AC 75C max. temperature rating Terminal Type: Screw Standard nut size, 15/32 - 32 inch.