With a lifecycle stage of current, the XT4NU2025AFF000XXX is not subject to a last-time-buy or phase-out notice.
Integration context
The XT4N series mounts in standard panelboard or enclosure cutouts, with the TMF trip unit providing fixed thermal-magnetic protection for the 250 A frame. For panel builders, this means the breaker coordinates with downstream branch circuits where a fixed trip curve is specified and no field-adjustable thermal settings are required.