SQUARE D MG24517 Supp Protectr, 2A, 2P, D, 277/480VAC, 125VDC. More details: IEC Supplementary Protector, Amps 2, Number of Poles 2, Curve Type D, AC Voltage Rating 277/480VAC, DC Voltage Rating 125VDC, Max. AIR Rating 5kA, Trip Type Thermal Magnetic, Terminal Connection Lug, Mounting DIN Rail, Min. Wire Size 14 AWG, Max. Wire Size 4 AWG, Length 3.19 In., Width 1.42 In., Depth 3.00 In., Standards UL 1077, CE, CSA, IEC, Series C60N