ABB SACE XT5N400R400 Three Pole Circuit Breaker

ABB SACE Tmax XT5N400R400 is a fixed three‑pole molded‑case circuit breaker from the XT5N family rated for 400 A with front‑terminal connections for straightforward wiring in distribution panels. It uses a thermomagnetic release (TMA) and supports UL/CSA listings, with a short‑circuit rating up to 36 kA at 380 V and an instantaneous trip current (I3) in the 2,000–4,000 A range depending on the option. Some XT5N 400 A 3P variants offer electronic protection via the Ekip Touch LSI trip unit for adjustable protection and monitoring, while the XT5N line also includes four‑pole configurations for broader distribution schemes.