Eaton BR main lug loadcenter 3BR4242L225 - 25 kAIC

Part Number: 3BR4242L225
Manufacturer
Eaton
Part number
3BR4242L225

Quick Summary

Eaton BR main lug loadcenter delivers compact, reliable power distribution for industrial panels, commercial enclosures, and service entrances. Engineers often struggle with space constraints and wiring complexity in control cabinets, making expansion and maintenance costly. UL 50 and UL 67 certifications, along with a NEMA 1 enclosure rating, provide proven protection in harsh environments. With a 225 A rating, aluminum bus, and cover included, it supports efficient installation and reliable operation. Designed for compatibility with Type BR 1-inch breakers, it's easy to source parts and service across Eaton components, backed by a 10-year warranty.

Product Information

Extended Description

3BR4242L225 Eaton: Eaton BR main lug loadcenter,No feed-thru lugs,Main lug,225 A,L1,Aluminum,Cover included,NEMA 1,Metallic,25 kAIC,BWH,Combination,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
3BR4242L225
UPC
786676442756
Product Length/Depth
3.88 in
Product Height
45 in
Product Width
14.31 in
Product Weight
36.8 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
Mounting
Combination
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
L1
Enclosure
NEMA 1
Enclosure material
Metallic
Interrupt rating
25 kAIC
NEMA rating
NEMA 1
Number of wires
4
Feature: No feed-thru lugs. Business Impact: Simplifies wiring, reduces material costs, and shortens installation time. Application: Ideal for main lug configurations in compact panels where feed-through is not required. Feature: 42 circuits and 42 spaces. Business Impact: High circuit density supports large loads while preserving enclosure footprint. Application: Suitable for mid-size industrial control panels and service entrances. Feature: Aluminum bus. Business Impact: Lighter weight and corrosion resistance ease handling and long-term reliability. Application: Field installs and mounting in variable environments. Feature: NEMA 1 metallic enclosure. Business Impact: Indoor, dry-location protection with robust mechanical integrity. Application: Factory floors and workshop panels needing durable steel enclosures. Feature: 25 kAIC interrupt rating. Business Impact: Enhanced fault protection reduces equipment damage risk. Application: Facilities with higher fault currents or demanding safety standards. Feature: Compatibility with Type BR 1-inch breakers. Business Impact: Simplifies procurement and spare parts planning, reducing downtime. Application: Retrofit projects and new installations using common Eaton components. Feature: 225 A rating and 208Y/120, 240 V. Business Impact: Supports typical three-phase industrial loads with flexible voltage options. Application: Manufacturing lines, motors, and secondary distribution. Feature: Wire size range #1 AWG-300 kcmil Cu/Al. Business Impact: Enables large feeder and optimized wire routing. Application: Main feeders and subfeeders in high-capacity panels. Feature: Cover included and 10-year warranty. Business Impact: Improves install readiness and total cost of ownership. Application: Enterprise-grade assurance for long-term service contracts.

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FAQs

Before installation, verify enclosure dimensions (height 45 in, width 14.31 in, depth 3.88 in) and mounting options for your panel space. Ensure a compliant indoor location, prepare for four-wire, three-phase 208Y/120 or 240V service, and plan for Type BR 1-inch breakers compatibility. With cover included, ensure proper sealing and access for maintenance is maintained.
Yes. This loadcenter is specified for use with Type BR 1-inch breakers, offering seamless product compatibility, easier procurement, and simplified spare-part management. This compatibility supports standardized maintenance procedures and reduced downtime when sourcing breakers, aiding both new installations and retrofit projects.
The 3BR4242L225 is designed for three-phase systems at 208Y/120 or 240 V, with 42 circuits and 225 A capacity. It suits industrial panels, commercial enclosures, and service entrances requiring compact, high-density power distribution. It supports 4-wire configurations and provides a sturdy NEMA 1 indoor enclosure for reliable operation.
This unit carries UL 50 and UL 67 certifications and a NEMA 1 enclosure rating, confirming compliance for indoor dry-location service. These standards help ensure safe operation, routine inspection readiness, and alignment with industry regulations for electrical distribution equipment.
The 3BR4242L225 includes a 10-year warranty from Eaton, offering long-term protection and reduced lifecycle risk. Maintenance is streamlined due to standard component compatibility with Type BR breakers, readily available spare parts, and a robust, corrosion-resistant aluminum bus designed for durable field performance.