ABB SACE XT1N125 3 Pole Molded Case Circuit Breaker

ABB SACE Tmax XT1N125 is a three-pole molded‑case circuit breaker (MCCB) in ABB’s SACE Tmax XT family, delivering robust overcurrent protection for industrial power distribution with a 125 A frame. Designed for panelboards and machine feeders, it is UL/CSA listed and rated for operation up to 690 V AC (Ui 800 V) with a rated operating voltage of 690 V AC / 500 V DC. Short‑circuit protection scales with voltage: up to 50 kA at 230–240 V, up to 36 kA at 380–415 V, and up to 18 kA at 440–500 V, with a lower rating at higher voltages (approximately 5 kA at 690 V). The XT1N125 supports fixed mounting (TMF) in a compact 3P package, enabling straightforward incorporation into distribution panels and control cabinets. Typical power loss is around 4.3–4.8 W per pole under rated conditions, contributing to manageable heat within enclosure spaces. Ideal for industrial environments requiring reliable protection for motors, conveyors, and general electrical loads, the XT1N125 combines ABB reliability with the XT platform’s modular accessories and compatibility across the Tmax XT lineup.