The XT4NU3250BFF0ALXXX: The 250 A frame size with a TMA trip unit adjustable from 1250 A to 2500 A means this breaker covers a specific high-current branch — typically a large motor, transformer, or feeder circuit where the continuous load sits in that range. The 3-pole FF (fixed front) terminal configuration suits panel layouts where the breaker is bolted directly to the bus, not drawn out. UL/CSA listing confirms acceptance in North American installations; the same part carries the CCC mark for China.
ABB XT4NU3250BFF0ALXXX XT4N 250 TMA 250, 1250-2500 A 3P FF U
MPNXT4NU3250BFF0ALXXX
ABB XT4N series, XT4NU3250BFF0ALXXX, molded case circuit breaker, 250 A frame, TMA 250 thermal-magnetic trip unit, adjustable 1250-2500 A, 3-pole, FF UL/CSA rated.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Frequently asked questions
Where can I buy XT4NU3250BFF0ALXXX and how do I get a price?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
What is XT4NU3250BFF0ALXXX's listed description?
The description is: XT4N 250 TMA 250 1250-2500 3P FF UL/CSA, indicating an XT4N 250 frame, TMA 250 trip unit adjustable 1250-2500 A, 3-pole, fixed front terminals, UL/CSA rated.
What compliance documentation does ABB provide for XT4NU3250BFF0ALXXX?
ABB provides UL/CSA listing as standard for this order code. RoHS and REACH declarations are available through the ABB document portal; the part carries the CCC mark for China.
MPN
XT4NU3250BFF0ALXXX