Cheap Square D Q221100AB – 100A 2 Pole Molded Case Circuit Breaker

Rated for 100 amps at 120/240VAC, this legacy Q-Frame molded case circuit breaker ensures robust overcurrent protection for industrial facilities. It integrates into Square D I-Line panelboards and requires a Phase A-B bus connection for proper installation. Facility managers often seek this specific model to avoid retrofitting, though the PowerPact QBA221001 serves as the modern replacement. Standard features include HACR certification, common trip functionality, and a visual trip indicator.