IEC Supplementary Protector, Amps 40 A, AC Voltage Rating 400V AC, Max. AIR Rating 10kA at 400V AC, Series 5SY4, Curve Type C, DC Voltage Rating 72V DC, Number of Poles 4, Phase 3, Circuit Breaker Actuator Toggle, Circuit Breaker Mounting Style DIN Rail, Meets UL Type UL 1077, Terminal Connection Screw Clamp, Trip Type Thermal Magnetic, Application Industrial, Min. Wire Size 14 AWG, Max. Wire Size 4 AWG, Length 3.54 in, Width 2.77 in, Depth 3 in