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ABB XT4NU3250BFF000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT4NU3250BFF000XXX XT4N 250A 3-Pole MCCB, 65 kA at 600 V

MPNXT4NU3250BFF000XXX

ABB XT4N series molded case circuit breaker, XT4NU3250BFF000XXX, 250 A, 3-pole, panel mount, 65 kA interrupting capacity at 600 VAC.

ABB XT4NU3250BFF000XXX datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

XT4NU3250BFF000XXX — Specifications
ParameterValue
Amps250
Poles3
MountingPanel
Volts AC600
Breaking capacity65 kA

Product details

MCCB for 250 A feeder and distribution duty

The ABB XT4NU3250BFF000XXX is a 3-pole molded case circuit breaker from the XT4N series, rated 250 A continuous with a 65 kA interrupting capacity at 600 VAC. The panel-mount form factor suits it for switchboard or distribution panel integration where DIN-rail mounting isn't available.

Sizing and coordination

At 250 A continuous, this breaker fits as a main disconnect for a 250 A bus or as a feeder breaker feeding downstream subpanels.

Panel integration

Panel-mount design: the breaker mounts through a cutout in the enclosure door or subpanel, with busbar connections on the line side and load-side lugs for cable termination. The 3-pole unit occupies a single mounting footprint; leave adequate clearance above and below for arc-chute venting and cable bending radius. Torque terminal connections to the values specified on the breaker label — under-torqued lugs are a common source of thermal runaway at 250 A.

Frequently asked questions

What are the key ratings of XT4NU3250BFF000XXX?

250 A continuous current, 3-pole, 600 VAC maximum voltage, 65 kA interrupting capacity at 600 VAC, panel mount. The thermal-magnetic trip unit provides adjustable long-time and short-time protection.

Where can I buy XT4NU3250BFF000XXX and get current pricing?

This part is sourced to order against an RFQ through independent distribution. Submit a request for quote; availability and current pricing are confirmed at quote time. No stock or price figures are published here.

What compliance documentation does ABB provide for this MCCB?

The XT4N series carries CE marking for the European market, UL 489 listing for North America, and CCC certification for China. RoHS and REACH declarations are available from ABB's documentation portal for the series. Specific documentation for this order code can be requested with an RFQ.

MPN
XT4NU3250BFF000XXX