Eaton BR Series Main Lug Loadc...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4,767.41

Eaton BR Series Main Lug Loadcenter, Aluminum Bus, Single-Phase

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Model: BR4242L400F

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

$4,767.41
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Eaton BR Series Main Lug Loadcenter, Aluminum Bus, Single-Phase

The Eaton BR Series Main Lug Loadcenter delivers reliable electrical distribution for residential and commercial applications. This single-phase panel features a main lug (MLO) configuration, aluminum bus construction, and a durable enclosure with included cover for versatile installations. Built to UL 50 certification standards with a 25 kAIC interrupt rating, this family is available across a range of amperage ratings, circuit counts, enclosure types, and box sizes to suit specific project requirements.

Key Features

  • Main Lug Design: MLO configuration offers flexible installation with upstream disconnect protection and simplified connection methods.
  • Aluminum Bus Construction: Delivers excellent conductivity and corrosion resistance for long-term electrical performance.
  • Single-Phase Power: Configured for single-phase electrical distribution across residential and commercial systems.
  • 25 kAIC Interrupt Rating: Ensures reliable fault current protection for enhanced electrical system safety.
  • Flush Mounting: Provides clean, professional integration with an included cover.
  • Flexible Circuit Configurations: Offered in various circuit and space counts to support a wide range of electrical systems and future expansion needs.
  • Multiple Enclosure Options: Available in enclosure types suited to indoor and other installation environments for safe electrical distribution.

Certifications & Compliance

  • UL 50 Certified
  • 25 kAIC Interrupt Rating

Technical Specifications

  • Bus Material: Aluminum
  • Certifications: UL 50
  • Cover Type: Cover included
  • Interrupt Rating: 25 kAIC
  • Main Circuit Breaker: MLO
  • Mounting Method: Flush
  • Phase: Single-phase
  • Product Details: Main lug
  • Series: Eaton BR Series

Typical Applications

  • Residential Electrical Service Upgrades and New Construction
  • Commercial Facilities Requiring Reliable Circuit Distribution
  • Multi-Unit Residential Properties and Apartment Complexes
  • Professional Offices and Retail Establishments
  • Light Industrial Electrical Distribution
  • Electrical Contractor Installations Requiring UL Certified Components

Why Eaton?

Eaton delivers proven electrical distribution solutions with UL 50 certification and dependable enclosure protection. The aluminum bus construction and 25 kAIC interrupt rating ensure reliable performance, while the flush mounting design and included cover provide professional installation results for demanding electrical applications.

Manufacturer Resources

Product Specs

Product Type:
Load Center
Product Material:
Aluminum
Series:
Eaton BR Series
Connection Type:
Main Lug
Listing:
UL Listed
Department:
Electrical
Product Group:
Load Centers & Panel Boards

Eaton BR4242L400F – Frequently Asked Questions

1) Does the Eaton BR4242L loadcenter come with a main breaker, or do I need an upstream disconnect?
It's a main lug only (MLO) panel, so there is no main breaker in the box. Overcurrent protection and the service disconnect have to be upstream of it, which is why MLO panels are normally used as subpanels or as downstream distribution off a service disconnect. If the job needs the disconnect at the panel itself, you need a main breaker loadcenter instead.
2) What amperage ratings does the Eaton BR4242L main lug loadcenter come in?
Two ratings: 400A (part number BR4242L400F) and 600A (BR4242L600S). Both are the same 42-space BR Series main lug platform, so the choice comes down to the feeder size and the calculated load you're distributing.
3) Is this Eaton loadcenter single-phase or three-phase?
Single-phase. The BR4242L is built for single-phase distribution in residential, multifamily, and light commercial systems. A three-phase service needs a three-phase panelboard, not this one.
4) Do Eaton BR breakers fit this panel, or do I need CH breakers?
This is a BR Series loadcenter, so it takes Eaton BR type branch breakers. Eaton's CH line is a different classified breaker with a different interior and does not interchange with BR. If you're standardizing a portfolio of buildings, keeping every panel on one type saves a lot of grief on the truck stock.
5) Is the bus in the Eaton BR4242L copper or aluminum?
Aluminum bus. That matters on a couple of fronts: specs on some institutional and government jobs call out copper bus specifically, so check the drawing before ordering, and terminations should be made with conductors and antioxidant practice suitable for aluminum lugs.
6) Does the Eaton BR4242L loadcenter include a cover, or is that a separate order?
The cover is included, so you are not chasing a separate trim order to close the job out. It's set up for flush mounting, meaning the box is recessed into the wall and the cover finishes flat against the finished surface.
7) Can I use the Eaton BR4242L as a subpanel in an apartment building or commercial tenant space?
That's exactly the use case. Main lug construction means it feeds off an upstream disconnect, which is how subpanels are fed, and Eaton lists the BR Series for multi-unit residential, professional office and retail, and light industrial distribution. Feed it from a properly sized breaker upstream and keep neutral and ground separated on the subpanel side per code.
8) Is the Eaton BR Series loadcenter UL listed?
Yes, it's UL Listed and built to UL 50 enclosure standards, which is the listing most inspectors and institutional specs look for on an enclosure of this type.
How fast can I get the Eaton BR4242L400F 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 Eaton BR4242L400F come with a warranty?
Absolutely. The Eaton BR4242L400F 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 Eaton BR4242L400F?
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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