ABB XT4 Front Terminal Kit for...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$709.40
ABB XT Series front terminal kit for copper-aluminum cable

ABB XT4 Front Terminal Kit for Copper-Aluminum Cable, 3-Piece Set

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Model: KXT5CUAL2X500K-3PC

In Stock (leaves warehouse same day if ordered before 3pm ET)

$709.40
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ABB XT4 Front Terminal Kit for Copper-Aluminum Cable, 3-Piece Set

The ABB XT4 Front Terminal Kit delivers front-connected terminal hardware for copper-aluminum (Cu/Al) cable terminations on ABB XT4 series molded case circuit breakers. Supplied as a 3-piece (3PC) set, this kit accommodates cable sizes from 4 AWG to 300 AWG, giving electrical contractors and panel builders flexible conductor sizing options for a single breaker installation. The kit is UL/CSA listed, supporting code-compliant use in both U.S. and Canadian electrical installations, and ships packaged 1 each for straightforward stocking and job-site handling.

Key Features

  • Cable Range: Accommodates copper-aluminum (Cu/Al) conductors from 4 AWG to 300 AWG for flexible termination sizing.
  • Kit Configuration: Supplied as a 3-piece (3PC) set for complete three-pole front terminal coverage.
  • Breaker Compatibility: Engineered specifically as front terminal connections for the ABB XT4 series circuit breaker line.
  • Listing: UL/CSA listed, supporting compliant installations in both U.S. and Canadian jurisdictions.
  • Packaging: Supplied 1 each for simple inventory tracking and job-site use.

Certifications & Compliance

  • UL/CSA Listed

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Circuit Breaker Cable Termination
  • Industrial Power Distribution Panels
  • Commercial Electrical Installations
  • Panelboard and Switchgear Wiring
  • Retrofit Terminal Upgrades for ABB XT4 Breakers

Why ABB?

ABB's XT4 Front Terminal Kit is built to support reliable, code-compliant cable terminations on the widely used XT4 circuit breaker platform. With UL/CSA listing and a cable range spanning 4-300 AWG, this 3-piece kit gives electrical professionals a dependable, flexible option for copper-aluminum terminations across demanding commercial and industrial power distribution applications, from new panel builds to retrofit upgrades on existing XT4 installations.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Circuit Breaker Terminal Kit
Series:
XT4
Connection Type:
Front Terminal
Listing:
UL/CSA
Configuration:
3-Piece Kit
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Circuit Breakers

ABB KXT5CUAL2X500K-3PC – Frequently Asked Questions

1) What conductor sizes will the ABB XT4 front terminal kit accept?
The XT4 Cu/Al front terminal kit takes copper or aluminum conductors from 4 AWG up to 300 AWG. That range covers most feeder and branch terminations on a single XT4 breaker without needing separate lugs for copper and aluminum runs.
2) Do I need one kit per pole, or does one kit do the whole three-pole breaker?
One kit does the whole breaker. The 3PC designation means three pieces in the set, which is complete three-pole front terminal coverage, and it is packaged one each. For a three-pole XT4 you order a single kit, not three.
3) I have an XT1 breaker, not an XT4 - is the XT4 terminal kit a workable substitute?
No - the frame-specific kit is what you want. The ABB Cu/Al front terminal kits are frame-matched: KXT1CUAL1-3PC for the XT1 frame, KXT4CUAL2-3PC for the XT4 frame, and KXT5CUAL2X500K-3PC for the XT5 frame. All three are 3-piece front terminal sets covering a three-pole breaker, so order by the frame stamped on the breaker rather than by the kit you already stock.
4) What is the difference between the ABB XT copper-aluminum front terminal kit and the Eaton T225LA terminal kit?
They terminate to different breaker platforms and are not interchangeable. The ABB kit is a front terminal set built for the ABB XT breaker line, supplied as a 3-piece kit rated for copper-aluminum (Cu/Al) conductors from 4 AWG to 300 AWG and UL/CSA listed. The Eaton T225LA is a terminal kit with standard copper pressure terminals for Eaton Series C breakers. Match the kit to the breaker frame you actually have in the panel - an XT frame takes the ABB kit, a Series C frame takes the Eaton.
5) What does front terminal mean on an XT breaker, and when would I want it?
Front terminal means the lugs land on the front face of the breaker, where the cable comes at the breaker from the front of the enclosure rather than from behind or from a rear stab. It suits panel builds and switchgear where conductors are dressed in front of the breaker and the terminations need to stay accessible for torque checks. If your assembly lands cable from the rear or bus-connects the breaker, this is the wrong connection style.
6) Can I use this kit to retrofit lugs on an XT4 breaker that is already installed?
Yes, retrofit terminal upgrades on existing ABB XT4 installations are a listed application for the kit, as well as new panel builds. It is engineered specifically for the XT4 series breaker line, so it is not a universal lug kit and will not adapt to another manufacturer's frame.
7) I only need to land copper conductors - can I use a copper-only terminal kit instead of the ABB Cu/Al kit?
On an ABB XT breaker you still need the ABB XT front terminal kit, because the lug body has to match that breaker's frame and terminal pad. The Cu/Al rating on the ABB kit simply means it is approved for aluminum as well as copper conductors across 4 AWG to 300 AWG, so running copper through it is fully within its rating. Copper-only pressure terminal kits, such as the Eaton T225LA for Series C breakers, are a different platform and will not land on an XT frame.
8) Will a rear-connected or plug-in terminal arrangement work in place of the ABB XT front terminal kit?
Only if the enclosure and busbar geometry are built for it. The ABB XT Cu/Al kit is specifically a front terminal connection, meaning the conductors land on lugs facing the front of the breaker - which is what most panelboard and switchgear cable terminations assume. Rear or plug-in arrangements change how the breaker seats and where the cable enters, so confirm the mounting detail on your drawing before swapping connection styles.
How fast can I get the ABB KXT5CUAL2X500K-3PC delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the ABB KXT5CUAL2X500K-3PC come with a warranty?
Absolutely. The ABB KXT5CUAL2X500K-3PC is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the ABB KXT5CUAL2X500K-3PC?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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