ABB XT4N-250-200A-3P-480V Circuit Breaker

ABB SACE Tmax XT4N-250-200A-3P-480V is a three‑pole molded‑case circuit breaker from ABB's SACE Tmax XT4N family, engineered for dependable overcurrent protection in low‑voltage power distribution. This fixed, front‑terminal model uses a magnetically released TMA trip mechanism and provides a 200 A nominal current rating (Ith) at 480 V AC, making it suitable for feeders, transformers, and large motor circuits in commercial and industrial installations. It carries a short‑circuit current rating up to 25 kA at 480 VAC, in line with UL/CSA listings for typical North American use. The unit is designed as a 3P device with front terminals for straightforward wiring access and quick installation, and it supports operation at standard 50/60 Hz systems. Typical applications include protection of feeders in distribution panels, transformer circuits, and motor feeders where reliable overcurrent protection with a fixed trip is required. The XT4N‑250 model embodies ABB’s approach to robust fixed‑trip protection within a compact form factor, ensuring coordination with upstream devices in modern low‑voltage distributions.