Hassle-Free Returns ABB XT4NU3100AYJ000XXX – 100A 3 Pole Molded Case Circuit Breaker

Engineered for demanding environments, the ABB XT4NU3100AYJ000XXX is a 3-pole, 100A molded case circuit breaker from the Tmax XT4 series. Designed for unit-mount configurations, it fits ABB ReliaGear neXT panels and SB switchboards. It replaces the legacy T4N100TW when used with a retrofit kit. The breaker utilizes a fixed thermal-magnetic (TMF) trip unit for reliable LI protection. It delivers 25kAIC at 480V and includes line and load lugs.