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ABB XT6SU3800FFF000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT6SU3800FFF000XXX XT6S 800A 3P MCCB, EKIP DIP LSI

MPNXT6SU3800FFF000XXX

ABB XT6S series, XT6SU3800FFF000XXX, 800 A molded case circuit breaker, 3-pole, EKIP DIP LSI trip unit, UL/CSA.

ABB XT6SU3800FFF000XXX datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Product details

The LSI designation means it provides long-time (L), short-time (S), and instantaneous (I) protection — covering overload, short-circuit with time delay for selectivity, and high-fault clearing. The FF suffix indicates fixed front terminals, a common configuration for panelboard or switchboard mounting where the breaker bolts directly to busbars.

The EKIP DIP LSI trip unit is field-adjustable via DIP switches for the L, S, and I thresholds, which lets the commissioning engineer set selectivity curves without swapping trip units. For a 800 A frame, the XT6S typically handles fault currents up to 65 kA at 480 VAC — check the specific interrupting rating on the nameplate for your system voltage.

Frequently asked questions

What is the closest alternative to XT6SU3800FFF000XXX in this family?

Within the XT6S family, the closest variant would differ only by trip unit type (e.g., EKIP DIP LSIG instead of LSI) or terminal configuration (FF fixed front vs. FC fixed rear). Pin-compatible alternatives with the same 800 A frame and 3-pole count share the same mounting footprint and busbar connections. For a specific functional match, verify the trip unit features needed — the LSI version covers L, S, and I protection; an LSIG adds ground-fault protection.

How do I get current pricing and availability for XT6SU3800FFF000XXX?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

MPN
XT6SU3800FFF000XXX