Altech 3G10UM DIN Rail Mounted Circuit Breaker

The Altech 3G10UM is a UL 489-listed, three-pole DIN-rail mounted circuit breaker rated 10 A at up to 480 V AC, designed to protect three‑phase feeder circuits in compact industrial panels. As part of Altech's UM Series, it uses a thermal-magnetic trip and occupies 17.5 mm of width per pole on standard DIN rails, totaling three poles, with a short-circuit withstand rating up to 10 kA at 50/60 Hz on 480Y/277V AC. The "G" trip variant identified by the 3G designation targets reliable protection for motor-start applications and other general-usage loads, while the UL 489 listing supports branch-circuit protection in industrial control panels. Common applications include AC motor starting, general branch protection for electrical panels, and ballast or incandescent lighting loads, such as discharge-lamp ballasts and related lighting circuits.