Siemens NGB3B060 Three-Phase Bolt-On Circuit Breaker

Siemens NGB3B060 is a 60 A, three-pole bolt-on molded-case circuit breaker designed for 480Y/277 VAC three-phase systems, delivering 25 kAIC interrupt capability at that voltage to protect feeders and equipment from short circuits. It also supports up to 600Y/347 VAC with a 14 kAIC interrupt rating, accommodating higher-voltage installations. This UL489-listed unit uses bolt-on mounting for straightforward installation in compatible panels, and it includes load lugs for wiring connections. As part of Siemens' NGB bolt-on family, the NGB3B060 provides thermal-magnetic trip protection suitable for protecting branch circuits in commercial facilities such as data centers, offices, and light industrial spaces where 480Y/277V or 600Y/347V systems are used.