ABB PR211 Circuit Breaker

ABB SACE S5N PR211 circuit breaker is a four‑pole molded‑case protective device rated for 400 A and 600 V, designed for industrial power distribution. It pairs a 400 A S5N frame with the PR211 electronic overcurrent release, providing protection for 600 V three‑phase circuits by interrupting all four poles on overload or short‑circuit events. The four‑pole construction ensures simultaneous disconnection of all conductors, improving safety and fault isolation in panelboards, switchgear, and motor control centers. Common applications include feeders and protection for industrial equipment in facilities utilizing 600 V AC distribution, where the PR211 release serves as the electronic protection module integrated with the S5N breaker to coordinate with other protective devices in a comprehensive protection scheme.