The XT1NU3035AAA00NXXX: The description identifies this as an XT1N 125 TMF unit — a molded-case circuit breaker in the XT1N frame, rated for 125 A with a TMF (thermal-magnetic fixed) trip unit.
What the buyer needs to know
For a BOM freeze or spares order, the current lifecycle stage means no last-time-buy clock is ticking — this part is not flagged for phase-out. The XT1N frame is a standard panel-building footprint, so integration into existing ABB switchgear or retrofit into a competitor's panel is straightforward with the correct mounting accessories.