Siemens NEB3B050B – 50A 3 Pole Molded Case Circuit Breaker Free Returns

The NEB3B050B is a 3-pole, 50A MCCB from the Siemens SENTRON series. Built for commercial use, it features thermal-magnetic trip technology with fixed long-time and instantaneous protection. This NEB frame unit mounts into Siemens P1, P2, and P3 panelboards via a bolt-on connection. It is slated to be replaced by the 3VA4150-5ED34-0AA0 model. Rated for 35kAIC at 480VAC, it provides robust fault protection. The breaker is HACR and HID rated for specialized lighting and HVAC circuits.