Miniature Circuit Breaker, Supplementary Protector, Rated Current 0.5 Amps, 2 Pole, Interrupt Rating 6 kA, Thermal Magnetic Trip Curve D, Voltage up to 277/Y480 VAC, 60/110 VDC, DIN Rail Mounted, Finger Safe and Multi-Function Terminals, UL 1077, CSA 22.2 No. 235