ABB XT4NU3150AFF000XXX Circuit Breaker

ABB XT4NU3150AFF000XXX is a 3-pole molded-case circuit breaker in ABB’s SACE Tmax XT family (XT4N frame), delivering 150 A of continuous current at up to 600 V AC with thermal-magnetic fixed (TMF) protection for reliable overload and short-circuit control in industrial and commercial switchgear. This XT4N model provides an interrupting capacity of 18 kA at 600 V (N variant), with higher Icu options available on related XT4N models (XT4SU3150AFF000XXX 22 kA, XT4HU3150AFF000XXX 25 kA, XT4LU3150AFF000XXX 50 kA, XT4VU3150AFF000XXX 65 kA, XT4XU3150AFF000XXX 100 kA) to suit higher fault current environments. The unit features front-access terminals with line-side top termination and load-side bottom termination; no lugs are installed on delivery, allowing field configuration. UL standard listed, this 150 A Tmax XT4N breaker is designed to protect feeders, motors, and other distribution circuits in control panels and switchgear while delivering compact form-factor and dependable tripping performance.