Altech 2D3UR Two Pole DIN Rail Circuit Breaker

The Altech 2D3UR is a UL1077-recognized two-pole DIN-rail circuit breaker, intended as a supplementary protector on the load side of small electrical circuits in control panels. Each pole occupies 17.5 mm of DIN-rail width, giving a compact 35 mm footprint for a two-pole installation. The device is rated at 3 A and supports 480Y/277 VAC at 50/60 Hz, making it suitable for low-current protection of circuits powered from 480 V systems. It employs a thermal-magnetic mechanism with a D-Trip characteristic to provide instantaneous protection against short circuits and a thermal overload for normal overloads. The UR Series designation indicates UL 1077 recognition and a short-circuit-withstand rating up to 10 kA, and the product is designed specifically for DIN-rail mounting in industrial environments. Common applications include safeguarding power supplies, sensitive electronics, and control circuits on machine or panel loads where a dedicated, compact supplementary protector is required.