ABB XT1SU3050AFF000XXX Molded Case Circuit Breaker

ABB XT1SU3050AFF000XXX is a 3‑pole Tmax XT molded‑case circuit breaker rated for 50 A and designed for industrial low‑voltage protection. It fits within the XT1 125 A frame and uses a thermal‑magnetic trip (TMF) for overcurrent protection, with a 22 kA interrupt capacity at 600 V and compatibility with up to 600 V systems (600Y/347/690 VAC variants). The device features front‑access termination with line‑side terminals on the top and load‑side terminals on the bottom (no lugs installed, no key lock) and measures 5.12 in high by 3 in wide by 2.75 in deep. Operating temperature ranges from −13 to 158 °F (−25 to 70 °C). The XT1SU3050AFF000XXX designation identifies a 50 A, three‑pole device in ABB’s Tmax XT family, intended for reliable overcurrent protection in distribution panels, motor control centers, and other industrial power applications where compact form factor and strong short‑circuit performance are required.