ABB XT4VU3040AYG000XXX Three-Phase Circuit Breaker

ABB SACE Tmax XT4V 250 three‑pole molded‑case circuit breaker, model XT4VU3040AYG000XXX, is a front‑terminal fixed protection device in ABB’s Tmax XT4 family designed for low‑voltage power distribution. The unit is configured for In = 40 A in a 3‑pole arrangement and is available in UL/CSA listings, with electronic protection variants such as Ekip LS/I (XT4V 250 EKIP LS/I). The XT4 frame supports use in systems up to 600 V (UL) / 690 V (IEC), enabling it to interrupt and protect feeders and equipment across commercial and industrial panels. Its front‑terminal configuration simplifies wiring and field servicing, and it integrates with ABB’s Ekip protection options for coordinated, selective tripping. Typical applications include main and feeder protection in switchboards, motor circuits, and distribution panels where reliable 40 A protection is required within the XT4V 250 frame. With ABB’s Tmax XT4 lineage, it offers a compact solution that combines robust thermal‑magnetic or electronic trip options, straightforward integration into standard switchgear, and compatibility with UL/CSA requirements for industrial installations.