Square D PowerPacT M I-Line Te...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$637.98
Square D PowerPacT M I-Line Terminal Shield, 800A, 3-Pole Circuit Breaker

Square D PowerPacT M I-Line Terminal Shield, 800A, 3-Pole Circuit Breaker

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Model: MGJTC

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

$637.98
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Square D PowerPacT M I-Line Terminal Shield, 800A, 3-Pole Circuit Breaker

The Square D™ PowerPacT M I-Line terminal shield is a shielding kit designed to snap onto the OFF end of PowerPacT M three-pole circuit breakers rated up to 800A. Built for use with Square D I-Line™ circuit breaker power distribution panelboards on AC or DC systems, this shield adds a layer of protection at the breaker terminal end. The related I-Line panelboards are cULus labeled (compliance to UL and CSA standards certified by UL) and UL Listed under File E33139.

Key Features

  • Universal Fit: Fits all PowerPacT M three-pole circuit breakers up to 800A.
  • Snap-On Installation: This shield snaps onto the off end of the circuit breaker for fast, tool-free installation.
  • I-Line Compatibility: Engineered for Square D I-Line circuit breaker power distribution panelboards.
  • Amperage Rating: Rated for 800A (Line Rated Current 800-800 A) applications.
  • 3-Pole Configuration: Matched to 3-pole PowerPacT M circuit breaker construction.
  • Mercury Free: Manufactured without mercury content.
  • Country of Origin: Manufactured in the United States.

Certifications & Compliance

  • Associated I-Line panelboards are cULus Labeled (UL/CSA compliance)
  • UL Listed under File E33139
  • ROHS EUR Status: Compliant with Exemptions
  • ROHS EUR In Scope: Yes

Technical Specifications

  • Warranty: 18 months
  • Take Back: No
  • Returnability: No
  • Warranty Period: 18 months
  • Product Contributes To Saved And Avoided Emissions: No
  • Sustainable Packaging: No
  • Mercury Free: Yes
  • Packaging Without Single Use Plastic: No
  • ROHS Eur In Scope: Yes
  • Recycled Metal Content At Cr Level: 0 %
  • Legacy WEEE Scope: In
  • Packaging Made With Recycled Cardboard: Yes
  • With Recycled Cardboard: Yes
  • WEEE Product Category: 5
  • Without Single Use Plastic: No
  • ROHS Exemption Information: Yes
  • China ROHS In Scope: No
  • Scope Perimeter: Outside of Europe
  • Return Indicator: N
  • Reach Full Compliance Status Id: CONTAINS_SVHC
  • Circuit Breaker Type: M-frame

Typical Applications

  • Power Distribution Panelboards
  • I-Line Circuit Breaker Panelboard Systems
  • Commercial and Industrial Electrical Installations
  • Circuit Breaker Terminal Protection
  • PowerPacT M Breaker Retrofits and Upgrades

Why Square D?

Square D terminal shields are built to fit PowerPacT M three-pole circuit breakers precisely, snapping onto the breaker's OFF end for straightforward installation in I-Line power distribution panelboards. With cULus-labeled panelboard compatibility, UL Listing under File E33139, and mercury-free, ROHS-compliant-with-exemptions construction, this shield supports code-compliant, reliable performance for professional electrical installations.

Manufacturer Resources

Product Specs

Product Type:
Breaker Terminal & Lug
Series:
I-Line
Amperage Rating:
800A
Configuration:
3-Pole
Listing:
cULus
Country Of Origin:
United States
Department:
Electrical
Product Group:
Circuit Protection
Product Subgroup:
Circuit Breakers

Square D MGJTC – Frequently Asked Questions

1) Will the Square D MGJTC terminal shield fit any PowerPacT M-frame 3-pole breaker, or only certain amp ratings?
The MGJTC fits all PowerPacT M-frame three-pole circuit breakers rated up to 800A. It is a single-part fit across that range, so you do not need to match a specific frame amperage below 800A. It will not serve a two-pole breaker or a larger frame such as P or R.
2) I need to land cable on the breaker, not just cover the terminals - what should I order instead of the MGJTC?
The MGJTC is a shield only; it adds protection at the terminal end and does not provide a conductor connection. For a part that actually terminates cable, look at a terminal kit or lug instead - for example the ABB KXT-3PC front terminal kit for copper-aluminum cable, the ABB KXT1CU-3PC front terminal kit for copper cables 14-1/0 AWG on XT1 frames, or the Eaton 3TA225FD 225A pressure-type Cu/Al line and load terminals for Series C breakers. Each of those is frame-specific, so match the kit to the breaker you are landing on.
3) What is the closest equivalent to the Square D MGJTC terminal shield if the panel uses Eaton breakers?
The Square D MGJTC is a three-pole terminal shield that snaps onto the OFF end of PowerPacT M-frame breakers rated up to 800A in I-Line panelboards. On Eaton equipment, the comparable part is the Eaton EFTS3K, a three-pole terminal shield for Series G breakers. Both are terminal shields for three-pole molded case breakers, but each is matched to its own breaker frame - the MGJTC to PowerPacT M, the EFTS3K to Eaton Series G - so they are not interchangeable on the same breaker.
4) Is this terminal shield only for I-Line panelboards, or can I use it in any enclosure?
The shield is engineered for Square D I-Line circuit breaker power distribution panelboards, on AC or DC systems. Since it mounts to the breaker itself rather than the panel interior, the real requirement is a PowerPacT M three-pole breaker up to 800A; the I-Line panelboard is the application it was built around.
5) Does the Square D MGJTC shield carry a UL listing?
The listing on record is cULus, meaning UL and CSA compliance certified by UL, with UL Listing under File E33139. Note that the cULus label and that file are stated for the associated I-Line panelboards the shield is used in.
6) Does one MGJTC cover both ends of the breaker or do I need two?
One MGJTC covers the OFF end of the breaker. If your installation calls for shielding at both the line and load terminal ends, plan on a shield for each end. Some other brands sell their covers as multi-piece sets for this reason, for example the ABB XT2 low terminal cover is a two-piece set and the ABB XT4 front terminal kit comes as a three-piece set.
7) Is the ABB KXT high terminal cover a substitute for a Square D PowerPacT M terminal shield?
No. The ABB KXT-HTC3 is a three-pole high terminal cover for ABB XT4 frame breakers, while the Square D MGJTC shield is built to snap onto the OFF end of PowerPacT M three-pole breakers up to 800A in I-Line panelboards. They serve the same purpose - covering the breaker terminals - but the mounting geometry follows the breaker frame, so an XT4 cover will not seat on a PowerPacT M breaker.
8) Does amperage matter when choosing between the MGJTC shield and other breaker terminal accessories?
It does, because these parts are rated to the breaker they fit. The Square D MGJTC carries an 800A rating and fits all PowerPacT M three-pole breakers up to 800A. By contrast, the Eaton 3TA225FD terminals are a 225A pressure-type Cu/Al set for Series C breakers, so they belong on a much smaller frame. Confirm both the frame and the ampere rating of the breaker before ordering either.
9) For a hospital or school standardizing on Square D gear, is this part mercury free and RoHS compliant?
Yes on both counts. The shield is manufactured without mercury content and is RoHS EUR compliant with exemptions, and it falls in scope for RoHS EUR. Its packaging is made with recycled cardboard. It is manufactured in the United States, which matters if you have domestic sourcing requirements on the project.
10) What is the difference between a low terminal cover and the Square D MGJTC shield?
The ABB KXT2LTC-3 is a two-piece set of low terminal covers for three-pole XT2 frame breakers. The Square D MGJTC is a single snap-on shield for the OFF end of a three-pole PowerPacT M breaker rated up to 800A. The ABB set covers both terminal ends of its breaker in two pieces; the Square D part addresses the OFF end of the M-frame breaker and installs without tools.
How fast can I get the Square D MGJTC 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 Square D MGJTC come with a warranty?
Absolutely. The Square D MGJTC 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 Square D MGJTC?
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
Why buy the Square D MGJTC from ZenSupply?
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