Square D I-Line M Frame Servic...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$17.26
Square D I-Line M Frame Service Entrance Barrier Kit, Backfed MCB

Square D I-Line M Frame Service Entrance Barrier Kit, Backfed MCB

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Model: ILBFMHCRMULC

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

$17.26
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Square D I-Line M Frame Service Entrance Barrier Kit, Backfed MCB

The Square D I-Line M Frame Service Entrance Barrier Kit is a service entrance barrier kit engineered for backfed mount circuit breakers within Square D I-Line M Frame panelboard systems. Built on the modular I-Line construction platform, the kit accepts field installable accessories and conversion kits, giving electrical contractors a flexible, code-compliant path to configure service entrance equipment on site rather than sourcing a fully custom assembly. The kit is UL recognized as a component for use in listed panelboard assemblies and is manufactured in the United States, supporting reliable service entrance installations for commercial and industrial electrical distribution projects.

Key Features

  • Service Entrance Barrier Kit: Purpose-built for backfed mount circuit breakers in Square D I-Line M Frame panelboards.
  • Modular I-Line Construction: Accepts field installable accessories and conversion kits, simplifying on-site configuration changes and future retrofits.
  • Distributor-Ready Design: Part of the broad I-Line range of panelboard solutions built to address common electrical contractor needs from distributor stock.
  • UL Recognized: Recognized component rating supports use in listed panelboard assemblies.
  • Country of Origin: Manufactured in the United States.
  • Packaging: Supplied 1 each, packaged with recycled cardboard content.

Certifications & Compliance

  • UL Recognized
  • RoHS EUR In Scope (Compliance Status: Under Investigation)

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Commercial and Industrial Service Entrance Installations
  • Square D I-Line M Frame Panelboard Systems
  • Backfed Circuit Breaker Mounting Configurations
  • Panelboard Field Conversion and Retrofit Projects
  • New Construction Electrical Distribution Equipment

Why Square D?

Square D I-Line M Frame panelboards are built on a modular architecture that lets electrical contractors adapt equipment in the field using accessories and conversion kits like this service entrance barrier kit, instead of waiting on a fully custom-built assembly. With UL recognition and U.S. manufacturing behind it, this kit supports reliable, code-compliant service entrance configurations for backfed mount circuit breaker applications on commercial and industrial jobs.

Manufacturer Resources

Product Specs

Product Type:
Service Entrance Kit
Series:
I-Line M Frame
Configuration:
Backfed Mount
Listing:
UL Recognized
Country Of Origin:
United States
Department:
Electrical
Product Group:
Wiring Devices
Product Subgroup:
Power Distribution

Square D ILBFMHCRMULC – Frequently Asked Questions

1) What is the difference between the ILBFMHCRMULC and ILBFMHCRPULC service entrance barrier kits?
Frame size. The Square D I-Line service entrance barrier kit comes as ILBFMHCRMULC for M Frame breakers and ILBFMHCRPULC for P Frame breakers. Both are the backfed mount configuration, so pick the kit that matches the frame of the main breaker going into the panelboard, not the panel size.
2) Do I need a service entrance barrier kit when I backfeed a main breaker in an I-Line panelboard?
Yes, if the breaker is serving as the service disconnect. The Square D I-Line barrier kit is built specifically for backfed mount circuit breakers, isolating the line-side service conductors within the panelboard so the assembly can be used as service entrance equipment. It is the piece that turns a standard I-Line panel into a code-compliant service entrance configuration.
3) Does the M Frame version cover a P Frame breaker, or is a different kit needed?
The Square D service entrance barrier kit is ordered by breaker frame: ILBFMHCRMULC for M Frame and ILBFMHCRPULC for P Frame. The barrier geometry follows the breaker frame size, so an M Frame kit is not a substitute for a P Frame backfed main and the reverse is equally true. Confirm the frame designation stamped on the main circuit breaker before ordering. If the panelboard is not Square D I-Line at all, the Eaton SEK4/6 kit is the equivalent part for Eaton PRL1A and PRL2A panelboard systems.
4) If the panelboard on the job is an Eaton PRL1A or PRL2A instead of a Square D I-Line, what service entrance kit applies?
The Square D ILBFMHCR service entrance barrier kit is built for backfed mount circuit breakers in Square D I-Line M Frame panelboard systems, so it is tied to that I-Line bus and frame architecture. For an Eaton PRL1A or PRL2A panelboard, the corresponding part is the Eaton SEK4/6 service entrance kit, which is specified for PRL1A/PRL2A panelboard systems. Service entrance barrier and neutral bonding kits are not interchangeable between manufacturers' panelboard lines - match the kit to the enclosure and bus family already installed.
5) Is this Square D barrier kit UL listed or UL recognized, and does that matter for inspection?
It carries a UL Recognized component rating, not a standalone listing. That is the normal status for a barrier kit: the recognition supports its use inside a UL listed panelboard assembly, and it is the finished panelboard that carries the listing an inspector looks at. Install it in the Square D I-Line panelboard it was built for and the assembly listing stays intact.
6) Is this Square D service entrance kit made in the USA for a Buy American spec job?
Yes, the I-Line service entrance barrier kit is manufactured in the United States, which is what government, education, and institutional jobs with domestic sourcing language usually need to see on the submittal.
7) Can I field-convert an existing I-Line panelboard to service entrance rather than buying a new assembly?
Yes - that is the intent of the Square D ILBFMHCR barrier kit. The I-Line M Frame platform is modular and accepts field installable accessories and conversion kits, so an existing panelboard can be converted to a service entrance configuration with a backfed mount main on site instead of ordering a fully custom-built assembly. The equivalent field kit on the Eaton side is the SEK4/6 for PRL1A and PRL2A panelboards. Neither kit crosses between the two manufacturers' panelboard lines.
8) What do I actually get when I order one of these kits?
One barrier kit, supplied 1 each and packaged in recycled-content cardboard. The circuit breaker, the panelboard, and any other conversion accessories are separate orders, so specify the breaker frame first and match the kit to it.
How fast can I get the Square D ILBFMHCRMULC 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 ILBFMHCRMULC come with a warranty?
Absolutely. The Square D ILBFMHCRMULC 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 ILBFMHCRMULC?
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 ILBFMHCRMULC from ZenSupply?
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