The ABB XT5SU340AFFF000XXX is a 400 A three-pole molded-case circuit breaker from the XT5S series, fitted with an EKIP DIP LSI electronic trip unit and UL/CSA certification. The EKIP DIP LSI provides adjustable long-time (L), short-time (S), and instantaneous (I) protection curves — the LSI designation means it covers overload and short-circuit selectivity without ground-fault protection, so it is sized for distribution feeders where coordination with downstream breakers matters more than GFCI.
ABB XT5SU340AFFF000XXX XT5S 400A 3P MCCB, EKIP DIP LSI, UL/C
MPNXT5SU340AFFF000XXX
ABB XT5S series, XT5SU340AFFF000XXX, 400 A 3-pole MCCB with EKIP DIP LSI electronic trip unit, UL/CSA certified.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026
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How do I get current pricing and availability for XT5SU340AFFF000XXX?
Submit an RFQ through this listing. Pricing and stock are confirmed at quote time — no automated figures are published here.
What is XT5SU340AFFF000XXX's listed description on this component line?
The description reads: XT5S 400 EKIP DIP LSI IN400 3P FF UL/CSA. This confirms a 400 A frame, EKIP DIP LSI trip unit, 400 A rating, three-pole, fixed-front (FF) construction, and UL/CSA certification.
MPN
XT5SU340AFFF000XXX