Supplementary Protectors: Type - Supplementary Thermal Magnetic Breaker; Poles - 2P; Amps - 50; Trip Range - 2.2-20 x Rating; Voltage - 277VAC; Rating - kA IR - 5; Actuator Style - Toggle Lever; Mounting - Panel Cutout; Terminals - Stud; WxHxD - 1.94x2.50x1.84"; Additional Information - Circuit Breaker Size mm: 63.5; Manufacturer Series - W9