Affordable Siemens NGB1B040B – 40A 1 Pole Molded Case Circuit Breaker

Delivering robust performance, the Siemens NGB1B040B is a 40A, 1-pole molded case circuit breaker. It utilizes fixed thermal and magnetic trip units to provide precise LI protection. Designed with a bolt-on mounting style, it integrates into Siemens P1, P2, and P3 panelboards. For modern upgrades, this unit is replaced by the 3VA51 Series (requires mounting kit). Rated 100kAIC at 120VAC, this breaker is HACR and HID rated for specialized lighting and HVAC loads.