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ABB XT1NU3040AAA000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT1NU3040AAA000XXX MCCB, 40 A, 3-Pole, 22 kA

MPNXT1NU3040AAA000XXX

ABB Tmax XT1 molded case circuit breaker, 40 A, 3-pole, 480 VAC, 22 kA interrupting rating, panel mount.

ABB XT1NU3040AAA000XXX datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

XT1NU3040AAA000XXX — Specifications
ParameterValue
Amps40
Poles3
MountingPanel
Volts AC480
Breaking capacity22 kA

Product details

The ABB XT1NU3040AAA000XXX is a Tmax XT1 molded case circuit breaker, 40 A, 3-pole, rated 480 VAC with a 22 kA interrupting capacity.

Panel mount — fits a standard cutout for the XT1 frame. The fixed thermal-magnetic trip unit is non-interchangeable, so the 40 A rating is locked at order; no field adjustment. Three-pole configuration covers three-phase loads — motors, feeders, lighting panels. Terminals are front flat, which simplifies bus-bar or cable landing in a tight enclosure.

Frequently asked questions

What is the interrupting rating of XT1NU3040AAA000XXX?

22 kA at 480 VAC. That's the maximum fault current this breaker can safely interrupt at that voltage.

Where can I buy XT1NU3040AAA000XXX?

Sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing confirmed at quote time.

MPN
XT1NU3040AAA000XXX