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ABB XT1NU3020AFF000XXX — Molded Case Circuit Breakers (MCCB)

ABB XT1NU3020AFF000XXX Tmax XT1 MCCB, 125A, 3-Pole, Thermal-

MPNXT1NU3020AFF000XXX

ABB Tmax XT1 molded case circuit breaker, 3-pole, 125 A continuous rating, thermal-magnetic fixed trip block (20-500 A), frame mount, front flat terminals.

ABB XT1NU3020AFF000XXX datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

XT1NU3020AFF000XXX — Specifications
ParameterValue
Amps125
Poles3
MountingFrame

Product details

Frame-size MCCB for panel distribution

The ABB XT1NU3020AFF000XXX is a Tmax XT1 molded case circuit breaker rated 125 A continuous, 3-pole, with a thermal-magnetic fixed trip block covering the 20-500 A range. The frame mount and front flat terminals suit it for panelboard or switchboard integration where the breaker bolts directly to a bus or sub-feed assembly — not a DIN-rail snap-on unit. For a 3-pole three-phase system, this covers line-to-line and line-to-neutral faults on a 480Y/277 V or 208Y/120 V distribution.

Frequently asked questions

What is XT1NU3020AFF000XXX's listed amps and poles?

The breaker is rated 125 A continuous and has 3 poles, making it a standard three-phase molded case circuit breaker.

Where can I buy XT1NU3020AFF000XXX and how is it quoted?

This part is sourced to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — no stock figures or lead-time numbers are published here.

MPN
XT1NU3020AFF000XXX