Eaton 3BR4242L225R BR Main Lug Loadcenter - NEMA 3R
Part Number: 3BR4242L225R
Quick Summary
BR main lug loadcenter from Eaton provides a robust distribution point for industrial control panels. Facilities teams often grapple with space constraints, outdoor exposure, and complex wiring when expanding or upgrading power distribution. This solution carries UL 50 and UL 67 certifications and a NEMA 3R enclosure for reliable outdoor or semi-protected use. With compatibility for Type BR 1-inch breakers and a 208Y/120, 240V rating, it delivers scalable, code-compliant power zoning while reducing procurement complexity and long-term maintenance costs.
Product Information
Extended Description
3BR4242L225R Eaton: Eaton BR main lug loadcenter,No feed-thru lugs,Main lug,225 A,L1R,Aluminum,Cover included,NEMA 3R,Metallic,25 kAIC,BWH,NEMA 3R,42 Circuits,42 Spaces,Four-wire,Three-phase,Type BR 1-inch breakers,208 Y/120, 240 V,#1 AWG-300 kcmil Cu/Al
Product Name
Eaton BR main lug loadcenter
Catalog Number
3BR4242L225R
UPC
786676442800
Product Length/Depth
5.19 in
Product Height
45 in
Product Width
14.31 in
Product Weight
46 lb
Warranty
10 year
Certifications
UL 50 UL 67
Special features
No feed-thru lugs
Type
Main lug
Amperage Rating
225 A
Bus material
Aluminum
Cover
Cover included
Main circuit breaker
BWH
Number of circuits
42
Number of spaces
42
Phase
Three-phase
Used with
Type BR 1-inch breakers
Voltage rating
208Y/120, 240V
Wire size
#1 AWG-300 kcmil Cu/Al
Box size
L1R
Enclosure
NEMA 3R
Enclosure material
Metallic
Interrupt rating
25 kAIC
NEMA rating
NEMA 3R
Number of wires
4
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - 3BR4242L225R
Eaton type BR circuit breaker limited warranty June 2024
Feature: Main lug design with no feed-through lugs → Business Impact: Reduces upfront hardware costs and simplifies configuration for end-of-line distribution → Application: Ideal for retrofit or new installations in light industrial panels. Feature: 225 A amperage rating → Business Impact: Supports mid-range loads while maintaining acceptable voltage drop and protection margins → Application: Suitable for lighting, HVAC, and process controls in commercial facilities. Feature: 42 circuits and 42 spaces → Business Impact: High capacity in a compact footprint reduces panel count and saves floor space → Application: Large data rooms, manufacturing lines, and multi-branch control systems. Feature: Aluminum bus material → Business Impact: Lighter weight improves installation efficiency and corrosion resistance enhances lifecycle reliability → Application: Outdoor or damp environments where exposure risk exists. Feature: NEMA 3R enclosure with cover included → Business Impact: Weather-ready protection minimizes service interruptions and accelerates field deployment → Application: Outdoor cabinets, mechanical rooms, and protected exterior locations. Feature: Compatibility with Type BR 1-inch breakers → Business Impact: Streamlines maintenance and stocking with standard components → Application: Retrofit projects leveraging existing BR breaker inventory.
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FAQs
Install the 3BR4242L225R in a suitable enclosure honoring UL 50/UL 67 requirements. Wire the four conductors per panel rating, connect to the aluminum bus, and use BR 1-inch breakers as specified. Follow torque values in the Eaton datasheet and verify 208Y/120 or 240V phase compatibility for three-phase systems.
Amperage rating is 225 A, voltage rating is 208Y/120 and 240V, interrupt rating is 25 kAIC, phase is three-phase, number of circuits and spaces is 42 each, enclosure is NEMA 3R with a metallic body, and it uses Type BR 1-inch breakers.
Yes. The enclosure is NEMA 3R rated and metallic for durability in outdoor or protected locations. It includes a cover and UL 50/UL 67 certifications, making it appropriate for exterior installations and water or dust-prone environments when installed according to code.
UL 50 verifies enclosure integrity for low-voltage switchgear, UL 67 covers panelboard assemblies, and NEMA 3R confirms weather-resistant protection. Together they ensure safe operation, code compliance, and suitability for outdoor or semi-exposed applications, reducing risk during audits and field commissioning.
The Eaton BR loadcenter carries a 10-year warranty, reflecting confidence in reliability and long-term performance. This reduces maintenance surprises, lowers total cost of ownership, and supports predictable budgeting for spare parts, service planning, and lifecycle management across industrial facilities.