Siemens HGB3B040B – 40A 3 Pole Molded Case Circuit Breaker High Quality

Engineered for commercial use, the Siemens HGB3B040B is a 3-pole, 40A molded case circuit breaker from the Sentron family. It features thermal-magnetic trip technology with fixed LI protection. This bolt-on breaker mounts into Siemens P1 through P5 panelboards. For modern upgrades, it is replaced by the 3VA5140-5EC31-0AA0 using a mounting kit. Rated at 100 kAIC at 240VAC and 35 kAIC at 480Y/277VAC, it provides robust fault protection. The unit is HACR rated and supports reverse feed.