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ABB XT1NU3050AAA000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT1NU3050AAA000XXX Tmax XT1 Molded Case Breaker, 50A, 22

MPNXT1NU3050AAA000XXX

ABB Tmax XT1 series, molded case circuit breaker, XT1NU3050AAA000XXX, 50 A, 3-pole, 480 VAC, 22 kA interrupting rating, panel mount.

ABB XT1NU3050AAA000XXX datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

XT1NU3050AAA000XXX — Specifications
ParameterValue
Amps50
Poles3
MountingPanel
Volts AC480
Breaking capacity22 kA

Product details

What the 50 A and 22 kA ratings mean for fit

The XT1NU3050AAA000XXX is a 3-pole molded case circuit breaker from ABB's Tmax XT1 frame, rated 50 A continuous at 480 VAC with a 22 kA interrupting capacity.

Panel-mount design, so it bolts directly to a backplate or enclosure sub-panel — no DIN rail adapter needed. The Tmax XT1 frame accepts plug-in or fixed terminals; this variant ships with fixed front flat terminals, which simplifies bus-bar connection in a distribution panel but means no quick-swap without tools. Plan for panel cutout dimensions per the ABB installation manual; the frame footprint is shared across the XT1 thermal-magnetic family, so bus-bar layouts stay consistent if you derate or uprate the trip unit later.

Frequently asked questions

What is the interrupting rating of XT1NU3050AAA000XXX?

22 kA at 480 VAC. That is the maximum fault current the breaker can safely interrupt at that voltage without damage.

Where can I buy XT1NU3050AAA000XXX?

Sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at quote time — no stock count or price is published here.

What is the amp rating and pole count on this breaker?

50 A continuous, 3-pole configuration. The 50 A is the thermal-magnetic fixed trip rating — not adjustable on this variant.

MPN
XT1NU3050AAA000XXX