The XT4NU3225FFJ000XXX: The 225 A rating on the EKIP LSI trip unit covers the L (long-time), S (short-time), and I (instantaneous) protection curves — the standard set for feeder and main breaker applications where you need adjustable short-time delay for selective coordination downstream. The XT4N 250 frame physically accommodates this trip rating with headroom to 250 A if you ever re-rate. The 3-pole configuration suits three-phase systems; the F designation indicates fixed (non-interchangeable) trip units, so the protection settings are factory-set for the 225 A rating.
ABB XT4NU3225FFJ000XXX XT4N 250 EKIP LSI, 225A 3P
MPNXT4NU3225FFJ000XXX
ABB, XT4N series, molded case circuit breaker (MCCB), XT4NU3225FFJ000XXX, 225 A, 3-pole, EKIP LSI trip unit, UL/CSA.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Frequently asked questions
What is XT4NU3225FFJ000XXX's listed description?
The description is XT4N 250 EKIP LSI IN=225A 3P F F UL/CSA, indicating a 225 A, 3-pole, fixed-trip molded case circuit breaker with EKIP LSI protection and UL/CSA approvals.
Where can I buy XT4NU3225FFJ000XXX?
This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.
MPN
XT4NU3225FFJ000XXX