Eaton Main Lug Loadcenter 125A 40-Circuit 20-Space Single-Phase 120/240V NEMA 3R Aluminum Bus

Eaton BR Main Lug Loadcenter 125A 40-Circuit

Professional Electrical Distribution Panel for Residential and Commercial Applications

The Eaton BR Main Lug Loadcenter delivers exceptional electrical power distribution performance for residential and commercial electrical systems. This 125A single-phase loadcenter provides reliable electrical distribution with 40 circuits and 20 spaces designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

Electrical Distribution Performance

• 125A Main Lug Design - Provides reliable electrical distribution capacity for residential and light commercial applications with professional-grade power handling
• 40-Circuit Capacity with 20 Spaces - Accommodates extensive electrical distribution needs with room for future expansion and circuit additions
• Single-Phase 120/240V Configuration - Standard residential voltage rating perfect for homes, small businesses, and light commercial electrical systems
• 10 kAIC Interrupt Rating - Provides adequate short-circuit protection for typical residential and commercial electrical applications

Weather Protection & Installation

• NEMA 3R Enclosure Rating - Weather-resistant outdoor installation capability protects against rain, sleet, and ice formation
• Aluminum Bus Construction - Lightweight yet durable bus material provides excellent electrical conductivity and corrosion resistance
• Metallic Enclosure - Robust construction ensures long-lasting protection and professional appearance for outdoor installations

Technical Specifications

Amperage Rating: 125A, Voltage Rating: 120/240V, Phase: Single-phase, Number of Circuits: 40, Number of Spaces: 20, Interrupt Rating: 10 kAIC, NEMA Rating: NEMA 3R, Bus Material: Aluminum, Enclosure Material: Metallic, Wire Size: #6-2/0 AWG Cu/Al, Used With: Type BR 1-inch breakers, Certifications: UL 67, Dimensions: 14.31" W x 3.88" H x 3.88" D, Weight: 16 lb, Box Size: X2, Number of Wires: 3, Cover: Included

Installation & Usage

1. Verify electrical service capacity matches 125A main lug rating and single-phase 120/240V configuration
2. Mount loadcenter securely using appropriate hardware for NEMA 3R outdoor installation requirements
3. Connect service entrance conductors to main lug terminals using #6-2/0 AWG Cu/Al wire as specified
4. Install Type BR 1-inch circuit breakers in designated spaces according to electrical load requirements
5. Connect branch circuits ensuring proper wire sizing and electrical code compliance for each circuit
6. Complete installation with proper grounding and bonding according to NEC requirements and local electrical codes

Professional Applications

Ideal for:

• Residential Electrical Systems - Main electrical distribution for homes requiring 125A service with extensive circuit capacity
• Light Commercial Applications - Small businesses, retail spaces, and office buildings needing reliable electrical distribution
• Outdoor Electrical Installations - Weather-resistant NEMA 3R rating perfect for exterior mounting applications
• Service Upgrades - Electrical panel replacements and service capacity increases for existing buildings
• New Construction Projects - Primary electrical distribution for residential and light commercial new builds
• Electrical Contractor Applications - Professional installations requiring UL 67 certified loadcenters with proven reliability
• Multi-Circuit Requirements - Applications needing 40 circuits with room for future electrical expansion
• Aluminum Bus Applications - Installations where lightweight yet durable bus construction is preferred

BR Series Advantage

The Eaton BR series represents decades of electrical distribution innovation, featuring Type BR 1-inch circuit breakers that provide reliable thermal-magnetic protection. The aluminum bus construction offers excellent electrical conductivity while reducing overall weight, making installation easier for electrical professionals. The NEMA 3R weather-resistant design ensures dependable outdoor performance in various environmental conditions.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the reliability and performance that electrical professionals demand. This UL 67 certified loadcenter represents Eaton's commitment to electrical safety, featuring robust construction, weather-resistant design, and compatibility with the trusted BR circuit breaker line. Electrical contractors and facility managers worldwide rely on Eaton's proven track record for critical electrical distribution applications, backed by comprehensive testing and quality assurance that ensures long-term electrical system reliability.