Altech Corporation 3G20UM Molded Case Circuit Breaker

Altech 3G20UM is a 3-pole UL 489 mini molded case circuit breaker designed for DIN-rail mounting in industrial panels. It is rated for 20 A at 480Y/277 V AC (50/60 Hz) and uses a thermal-magnetic trip mechanism with a G-Trip characteristic, providing precise overload protection and fast response to short circuits. Built to fit compact DIN-rail spaces, it measures 17.5 mm in width per pole and supports three-phase circuits with a 10 kA short-circuit interrupting capacity. Its DIN-rail mounting conforms to standard 35 mm profiles for easy integration into existing panels, and the 3G20UM is part of Altech’s UM Series, UL 489-listed for dependable branch-circuit protection in industrial environments; common applications include AC motor starting, general AC protection, and across-the-line startup in control panels and power-distribution enclosures. Part number 3G20UM corresponds to a 3-pole, 20 A device in Altech's UM Series, reflecting the brand's approach to compact, UL-listed protection for three-phase circuits.