Skip to main content
ABB XT5NU440AEFF000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT5NU440AEFF000XXX XT5N 400 A Circuit Breaker, Current L

MPNXT5NU440AEFF000XXX

ABB XT5N 400 A molded case circuit breaker, order code XT5NU440AEFF000XXX, cross-reference ABB 1SDA102593R1, lifecycle stage current.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

The description carries the cross-reference ABB 1SDA102593R1.

Deployment Context

As a 400 A molded case circuit breaker, this unit is sized for main feeder or large branch-circuit protection in industrial switchboards and panelboards. It mounts in a standard draw-out or fixed cradle (depending on the specific XT5N frame variant) and coordinates with upstream and downstream ABB breakers for selective tripping.

MPN
XT5NU440AEFF000XXX