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ABB XT5NU340AFFN000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT5NU340AFFN000XXX XT5N 400A MCCB, Ekip DIP LSI, 3P FF U

MPNXT5NU340AFFN000XXX

ABB XT5N series, XT5NU340AFFN000XXX, 400 A molded case circuit breaker, Ekip DIP LSI electronic trip unit, 3-pole, fixed front terminals, UL/CSA certified.

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Product details

The XT5NU340AFFN000XXX: The description string 'XT5N 400 EKIP DIP LSI IN400 3P FF UL/CSA' breaks down as: XT5N frame size, 400 A rated current, Ekip DIP LSI trip unit (electronic, with LSI protection curves — long-time, short-time, instantaneous), IN400 rating, 3-pole, fixed front terminals, UL and CSA listed. The 'DIP' refers to the dip-switch configurable trip unit, which allows field adjustment of protection settings without a separate programming tool.

Frequently asked questions

What does the description XT5N 400 EKIP DIP LSI IN400 3P FF UL/CSA mean?

It describes a 400 A XT5N frame molded case circuit breaker with an Ekip DIP LSI electronic trip unit, 3-pole, fixed front terminals, and UL/CSA certification. The DIP indicates dip-switch configurable protection settings.

Where can I buy XT5NU340AFFN000XXX?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

MPN
XT5NU340AFFN000XXX