Buy Online Square D QOU3201021 – 20A 3 Pole Miniature Circuit Breaker

Engineered for advanced control applications, the Square D QOU3201021 is a 20A, 3-pole miniature circuit breaker equipped with a factory-installed shunt trip mechanism. This allows the breaker to be tripped remotely via an external voltage signal. It utilizes a flexible unit-mount design compatible with DIN rails and OEM enclosures. It delivers a 10 kAIC interrupt rating at 240VAC, includes Visi-Trip status indication, and features reversible box lugs for simplified wiring.