Altech ABL 2G3UM DIN Rail Mounted Circuit Breaker

Altech ABL Sursum 2G3UM is a two-pole, DIN-rail mounted thermal-magnetic circuit breaker rated for 277 VAC (480Y/277 VAC systems) with a 3 A current rating, designed to protect small branch circuits in control panels and distribution boards. This compact unit installs on standard DIN rails for quick, secure integration in commercial and light-industrial panels, providing overload and short-circuit protection for circuits fed from 277 V AC. The thermal-magnetic mechanism delivers predictable response to both overloads and short circuits while enabling reliable cycling. The 2G3UM variant is part of Altech’s ABL/Sursum family and is intended for use in installations where space efficiency and straightforward replacement are important. Typical applications include protecting lighting circuits, control wiring, and auxiliary power circuits in electrical panels that utilize 480Y/277 VAC supply schemes.