Square D Q221150AB – 150A 2 Pole Molded Case Circuit Breaker Mega Sale

Built for commercial and industrial power distribution, the Q221150AB is a legacy 2-pole, 150A molded case circuit breaker from Square D. It delivers thermal-magnetic protection with a 10kAIC rating at 120/240VAC. Featuring an I-Line mounting style with an AB phase connection, this breaker easily installs into compatible Square D I-Line panelboards. While the original Q2 series is discontinued, this unit maintains existing systems and is officially replaced by the modern PowerPact QBA22150.