Eaton 3BR1836L200R Main Lug Loadcenter - NEMA 3R
Part Number: 3BR1836L200R
Quick Summary
The Eaton BR main lug loadcenter provides compact, reliable power distribution for commercial and light-industrial applications. A common challenge is delivering safe, scalable panel solutions that fit tight spaces while remaining easy to maintain. This unit carries UL 67 and UL 50 listings and a NEMA 3R enclosure, reinforcing safety and outdoor resilience. Its aluminum bus and BR-compatible 1-inch breakers enable straightforward upgrades and consistent performance across installations. By combining robust protection with space-efficient design, it delivers tangible business value through reduced project risk, faster commissioning, and lower long-term maintenance costs.
Product Information
Extended Description
3BR1836L200R Eaton: Eaton BR main lug loadcenter,No feed-thru lugs,Main lug,200 A,C3R,Aluminum,Cover included,NEMA 3R,Metallic,25 kAIC,BWH,NEMA 3R,36 Circuits,18 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
3BR1836L200R
UPC
786676442107
Product Length/Depth
5.19 in
Product Height
21 in
Product Width
14.31 in
Product Weight
28.7 lb
Warranty
10 year
Certifications
UL 67 UL 50
Catalog Notes
Suitable for use as service equipment when no more than 6 main disconnecting means are provided or when not used as lighting & appliance panelboard
Special features
No feed-thru lugs
Type
Main lug
Amperage Rating
200 A
Bus material
Aluminum
Cover
Cover included
Main circuit breaker
BWH
Number of circuits
36
Number of spaces
18
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
C3R
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 - 3BR1836L200R
Eaton type BR circuit breaker limited warranty June 2024
Feature: 200 A main lug with 36 circuits and 18 spaces. Business impact: Supports substantial load in a single enclosure, reducing cabinet count and simplifying wiring logistics. Application: Medium-sized commercial or light industrial feeds where future expansion is anticipated. Feature: No feed-thru lugs. Business impact: Minimizes complexity and maintenance points, improving reliability and serviceability. Application: Service equipment configurations with restricted main disconnects. Feature: Aluminum bus. Business impact: Lighter weight for easier handling and faster installation, with corrosion resistance suitable for varied environments. Application: Roofed and outdoor spaces where installation speed matters. Feature: NEMA 3R metallic enclosure with cover included. Business impact: Durability against weather and debris, reducing field remediation costs. Application: Outdoor installations and perimeters in manufacturing facilities. Feature: BR 1-inch breaker compatibility. Business impact: Seamless future upgrades and spare-part compatibility, lowering lifecycle costs. Application: Retrofit projects and new builds using standard BR breakers. Feature: Wire size range #1 AWG to 300 kcmil Cu/Al. Business impact: Supports large feeders and diverse conductor types, simplifying site sourcing. Application: Commercial feeders and multi-circuit branch wiring. Feature: Voltage rating 208Y/120, 240 V; three-phase. Business impact: Flexible integration with common industrial power systems, enabling integrated control schemes. Application: Data centers, manufacturing lines, and process equipment. Feature: 25 kAIC interrupt rating. Business impact: Enhanced fault current protection, improving safety margins and reducing equipment damage risk. Application: Facilities with higher fault currents. Feature: Catalog notes noting suitability as service equipment with up to six main disconnects. Business impact: Clear installation boundaries, helping engineers meet code while planning upgrades. Application: Building service entrances and limited-disconnect panels.
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FAQs
Plan mounting to accommodate 18 spaces and 36 circuits, using BR 1-inch breakers. Ensure proper clearance for ventilation and access to the cover. The NEMA 3R metallic enclosure supports outdoor installations, while the aluminum bus reduces weight. Verify conductor sizing up to #1 AWG-300 kcmil Cu/Al and three-phase 208Y/120 or 240 V input to meet job requirements.
This unit is rated at 200 A with a 25 kAIC interrupt rating, suitable for higher fault currents. It accommodates 36 circuits across 18 spaces in a three-phase system and supports 208Y/120 and 240 V. The enclosure is NEMA 3R with a cover included, ensuring durability and ease of field service.
Yes, but only when no more than six main disconnecting means are provided, per catalog notes. This aligns with typical service equipment configurations where main lugs are used for service entry. The UL listings (UL 67/UL 50) and NEMA 3R enclosure further support compliant, durable service installations in mixed-use facilities.
The unit carries UL 67 and UL 50 certifications, confirming reliability for low-voltage electrical distribution. It features a NEMA 3R enclosure for weather resistance and is designed for use with Type BR 1-inch breakers. These certifications support safety, performance, and regulatory compliance in industrial and commercial environments.
Key benefits include BR breaker compatibility for future upgrades, a lightweight aluminum bus for easier handling, and a cover included to speed initial commissioning. The 200 A rating supports substantial loads, while the 25 kAIC rating enhances fault protection. With a 10-year warranty, maintenance planning and lifecycle costs are predictable.