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ABB XT5SU340ABFF000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT5SU340ABFF000XXX XT5S 400A Molded Case Circuit Breaker

MPNXT5SU340ABFF000XXX

ABB XT5S series, molded case circuit breaker, order code XT5SU340ABFF000XXX, 400 A frame, TMA 400-4000 trip unit, 3-pole, FF (fixed front terminals), UL listed.

ABB XT5SU340ABFF000XXX datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

The XT5SU340ABFF000XXX: The 400 A frame size with TMA trip (thermal for overload, magnetic for short-circuit) covers adjustable pickup from 400 A to 4000 A — the magnetic trip range is set via the trip unit dial. The fixed front terminals (FF) accept standard bus bar or cable lugs; no rear-connection kit needed for most distribution panels.

With a lifecycle stage of current, the XT5SU340ABFF000XXX is an active catalog item — no last-time-buy or phase-out notice applies. No official replacement has been issued because none is needed.

Frequently asked questions

Where can I buy XT5SU340ABFF000XXX and get pricing?

This part is sourced to order against an RFQ through independent distribution. Current pricing and availability are confirmed at quote time — submit an RFQ for a firm commercial offer.

What is the description of XT5SU340ABFF000XXX?

The official description is XT5S 400 TMA 400-4000 3P FF UL — a 400 A, 3-pole molded case circuit breaker with TMA adjustable trip unit and fixed front terminals, UL listed.

MPN
XT5SU340ABFF000XXX