SQUARE D MG24434 Suppl Protector, 16A, 1P, C, 277VAC, 65VDC. More details: IEC Supplementary Protector, Amps 16, Number of Poles 1, Curve Type C, AC Voltage Rating 277VAC, DC Voltage Rating 65VDC, 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 0.71 In., Depth 3.00 In., Standards UL 1077, CE, CSA, IEC, Series C60N