Square D QOB3201021 – 20A 3 Pole Miniature Circuit Breaker Trusted Brand

Designed for advanced control applications, the Square D QOB3201021 is a 20-amp, three-pole miniature circuit breaker equipped with a factory-installed shunt trip. This 120/208/240VAC accessory enables remote tripping of the breaker for emergency shutdowns or automated control schemes. The unit features a secure bolt-on mounting style compatible with Square D NQ and NQOD panelboards. Rated for 10 kAIC at 120/240V, it provides reliable thermal-magnetic protection and Visi-Trip indication.