Square D Q1B370 – 70A 3 Pole Molded Case Circuit Breaker Authentic

Engineered for commercial use, the Square D Q1B370 is a 3-pole, 70A molded case circuit breaker. It features a thermal-magnetic trip unit to protect electrical systems against overloads and short circuits. This bolt-on breaker fits legacy Square D NQO and NQOB panelboards. For modern upgrades, it is replaced by the QOB370, which requires an SK5668 mounting kit for proper installation. Rated 10kAIC at 240VAC, it includes a Visi-Trip indicator for quick fault identification.