Eaton Thermal Magnetic Circuit Breaker 40A Three-Pole 240V BR Series 10kAIC Plug-On

Eaton Thermal Magnetic Circuit Breaker 40A Three-Pole 240V BR Series

Professional Electrical Circuit Protection Equipment

The Eaton BR Series Thermal Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for residential and commercial electrical distribution systems. This 40A three-pole 240V circuit breaker provides reliable electrical protection 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 Performance Excellence

• 40 Ampere Current Rating - Provides robust electrical protection for medium-load residential and commercial circuits with reliable overcurrent protection
• Three-Pole Configuration - Delivers simultaneous protection for three-phase electrical systems with common trip operation for enhanced safety
• 240V Voltage Rating - Engineered for standard residential and light commercial voltage applications with optimal electrical performance
• 10 kAIC Interrupt Rating - Provides dependable short-circuit protection with proven fault current interruption capability for electrical safety

Installation & Protection Features

• Plug-On Mounting Method - Enables quick and secure installation in Type BR loadcenters with professional-grade electrical connection
• Common Breaker Trip Operation - Ensures all three poles trip simultaneously for enhanced electrical safety and system protection
• BR Series Compatibility - Designed specifically for Type BR loadcenters with guaranteed fit and electrical performance

Technical Specifications

Amperage Rating: 40A, Voltage Rating: 240V, Number of Poles: Three-pole, Interrupt Rating: 10 kAIC, Circuit Breaker Type: BR Series, Trip Type: Common breaker trip, Mounting Method: Plug-on, Wire Size Compatibility: #14-4 AWG Cu/Al, Product Dimensions: 3" W x 2.75" H x 3" D, Weight: 0.94 lb, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375, Used With: Type BR Loadcenters

Installation & Usage

1. Verify electrical power is completely disconnected and lockout/tagout procedures are followed before installation
2. Confirm circuit breaker compatibility with Type BR loadcenter and verify proper amperage rating for intended circuit
3. Align circuit breaker with loadcenter bus bars and firmly press plug-on connection until fully seated
4. Connect circuit wiring using #14-4 AWG copper or aluminum conductors as specified for 40A rating
5. Verify proper wire termination torque and electrical connections according to NEC requirements
6. Test circuit breaker operation and verify proper three-pole common trip functionality before energizing system

Professional Applications

Ideal for:

• Residential Electrical Systems - Main panel circuit protection for high-amperage appliances, HVAC systems, and electrical distribution
• Commercial Building Power Distribution - Three-phase circuit protection for lighting systems, motor loads, and electrical equipment
• Industrial Electrical Panels - Reliable overcurrent protection for machinery, control systems, and power distribution equipment
• HVAC System Protection - Dedicated circuit protection for air conditioning units, heat pumps, and ventilation equipment
• Electrical Contractor Applications - Professional-grade circuit breakers for new construction and electrical system upgrades
• Facility Electrical Maintenance - Replacement circuit protection for existing BR series loadcenters and electrical panels
• Multi-Family Housing - Reliable electrical protection for apartment buildings, condominiums, and residential complexes
• Light Commercial Applications - Circuit protection for retail spaces, offices, and small commercial electrical systems

Thermal Magnetic Protection Advantage

The thermal magnetic trip mechanism combines the benefits of thermal overload protection for sustained overcurrent conditions with magnetic protection for short-circuit faults. This dual-protection technology ensures reliable circuit interruption across the full range of fault conditions, providing superior electrical safety and equipment protection compared to single-mechanism designs.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers unmatched quality and reliability in circuit protection technology. Our BR series circuit breakers feature UL 489 certification, rigorous testing standards, and proven performance trusted by electricians, electrical contractors, and facility professionals worldwide. Every Eaton circuit breaker represents our commitment to electrical safety, professional reliability, and intelligent power management solutions.