Eaton 3BR3L100S Main Lug Loadcenter - 10 kAIC

Part Number: 3BR3L100S
Manufacturer
Eaton
Part number
3BR3L100S

Quick Summary

The Eaton 3BR3L100S Main Lug Loadcenter is designed for safe, reliable power distribution in commercial and industrial panels. It eliminates feed-through lugs and provides a compact, surface-mount solution for three circuits in three-phase services. This unit is UL 50 and UL 67 listed and comes in a NEMA 1 metallic enclosure, offering rugged indoor protection against dust and debris. With a 10-year warranty and compatibility with Type BR 1-inch breakers, it supports maintenance-friendly, future-ready electrical distribution for evolving facilities.

Product Information

Extended Description

3BR3L100S Eaton: Eaton BR main lug loadcenter,No feed-thru lugs,Main lug,100 A,9,Aluminum,Cover included,NEMA 1,Metallic,10 kAIC,BR,Surface,3 Circuits,Three-pole,3 Spaces,Four-wire,Three-phase,Type BR 1-inch breakers,208 Y/120, 240 V,#14-1/0 AWG Cu/Al
Product Name
Eaton BR main lug loadcenter
Catalog Number
3BR3L100S
UPC
782114886366
Product Length/Depth
12.6 in
Product Height
3.8 in
Product Width
7.3 in
Product Weight
5.3 lb
Warranty
10 year
Certifications
UL 50 UL 67
Special features
No feed-thru lugs
Type
Main lug
Amperage Rating
100 A
Bus material
Aluminum
Cover
Cover included
Main circuit breaker
BR
Mounting
Surface
Number of circuits
3
Number Of Poles
Three-pole
Number of spaces
3
Phase
Three-phase
Used with
Type BR 1-inch breakers
Voltage rating
208Y/120, 240V
Wire size
#14-1/0 AWG Cu/Al
Box size
9
Enclosure
NEMA 1
Enclosure material
Metallic
Interrupt rating
10 kAIC
Number of wires
4
Feature: 100 A amperage rating with a main lug design provides straightforward connection for a three-space, three-pole configuration. Business impact: reduces installation time and simplifies protection coordination in light to medium-duty panels. Application: ideal for compact three-phase service panels in offices, data centers, or small manufacturing cells. Feature: Aluminum bus material lowers weight without compromising strength, easing on-site handling and mounting. Business impact: lowers labor costs and improves installation speed. Application: suitable for overhead or wall-mounted distributions in constrained environments. Feature: No feed-thru lugs minimizes potential fault paths, improving safety and panel reliability. Business impact: reduces wiring complexity and maintenance when upgrading or expanding circuits. Application: effective in retrofit projects where space is at a premium. Feature: NEMA 1 metallic enclosure with a 10 kAIC interrupt rating enhances fault protection and enclosure integrity. Business impact: supports compliant indoor installations with robust protection against dust and incidental contact. Application: appropriate for general-purpose low-voltage distribution in commercial spaces. Feature: Compatibility with BR 1-inch breakers ensures easy part replacement and future upgrades. Business impact: preserves investment in common Eaton components and minimizes spare parts inventory. Application: aligns with established maintenance workflows in facilities using Type BR breakers.

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FAQs

The 3BR3L100S is a surface-mounted, indoor-rated panel designed for three-phase service with three spaces. Installers should verify compatibility with BR 1-inch breakers, use #14-1/0 AWG Cu/Al conductors, and ensure the enclosure remains in a clean, dry NEMA 1 environment. The unit ships with a cover and supports straightforward wiring, reducing setup time and potential wiring errors.
Yes. The Eaton 3BR3L100S is specified to work with Type BR 1-inch breakers, enabling easy replacement and future upgrades. This compatibility helps maintain a consistent parts inventory and minimizes retraining for maintenance staff, while supporting reliable fault isolation and serviceability in everyday operations.
The loadcenter supports 208Y/120 V and 240 V systems and accepts #14-1/0 AWG Cu/Al conductors. This combination suits three-phase applications with four-wire configurations and enables flexible wiring schemes for small to mid-size commercial or light-industrial panels.
The 3BR3L100S features UL 50 and UL 67 listings and a NEMA 1 metallic enclosure for indoors. It carries a 10-year warranty, providing long-term assurance of performance and durability in demanding environments while aligning with industry safety standards.
Choosing the 3BR3L100S brings a 100 A main lug solution with 10 kAIC interrupt rating, reducing fault exposure and enabling scalable expansion to meet growing loads. No feed-through lugs simplify design, while compatibility with BR breakers lowers spare parts costs and simplifies procurement, supporting faster ROI through improved reliability and maintenance efficiency.