Eaton Thermal Magnetic Circuit Breaker 40A Single-Pole 120/240V 10kAIC BR Type Plug-On

Eaton Thermal Magnetic Circuit Breaker 40A Single-Pole 120/240V 10kAIC BR Type Plug-On

Professional Electrical Circuit Protection Equipment

The Eaton Thermal Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for residential and commercial electrical distribution systems. This 40A single-pole 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 reliable overcurrent protection for medium-load residential and commercial electrical circuits with precise thermal-magnetic trip operation
• 120/240V Voltage Rating - Compatible with standard residential and light commercial electrical systems for versatile installation applications
• 10 kAIC Interrupt Rating - Delivers dependable short-circuit interrupting capacity for safe electrical fault protection in typical residential and commercial environments
• Single-Pole Configuration - Optimized for single-phase circuit protection with compact 1-inch width design for efficient panel space utilization

Installation & Protection Features

• Plug-On Mounting Method - Quick and secure installation with reliable electrical connection to BR series loadcenter bus systems
• BR Type Compatibility - Engineered specifically for Type BR loadcenters ensuring proper fit and electrical performance
• Wire Size Compatibility - Accommodates #14-4 AWG copper and aluminum conductors for flexible wiring applications

Technical Specifications

Amperage Rating: 40A, Voltage Rating: 120/240V, Interrupt Rating: 10 kAIC, Number of Poles: Single-pole, Circuit Breaker Type: BR, Mounting Method: Plug-on, Wire Size: #14-4 AWG Cu/Al, Used With: Type BR Loadcenters, Dimensions: 3" H x 1" W x 3" D, Weight: 0.3 lb, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375

Installation & Usage

1. Verify power is OFF and test electrical panel with appropriate voltage tester before beginning installation
2. Select appropriate circuit position in Type BR loadcenter and ensure proper clearances
3. Align circuit breaker with bus connection and firmly press plug-on connection until fully seated
4. Connect circuit conductors to breaker terminals ensuring proper wire size (#14-4 AWG Cu/Al) and torque specifications
5. Verify secure mechanical and electrical connections before energizing circuit
6. Test circuit breaker operation and verify proper electrical protection functionality

Professional Applications

Ideal for:

• Residential Electrical Systems - Kitchen appliance circuits, electric water heater protection, air conditioning unit circuits, and general household electrical distribution
• Commercial Electrical Distribution - Office building electrical panels, retail facility power distribution, small commercial HVAC systems, and lighting control circuits
• Electrical Panel Upgrades - Loadcenter modernization projects, electrical service upgrades, and circuit capacity expansion applications
• HVAC System Protection - Air conditioning unit circuits, electric heating systems, ventilation equipment, and climate control electrical protection
• Appliance Circuit Protection - Electric range circuits, clothes dryer protection, water heater circuits, and high-current appliance applications
• Electrical Safety Systems - Overcurrent protection, short-circuit interruption, electrical fault isolation, and circuit overload prevention
• Professional Electrical Installation - New construction electrical systems, electrical renovation projects, and code-compliant circuit protection
• Maintenance Applications - Circuit breaker replacement, electrical system repairs, and preventive maintenance programs

Thermal-Magnetic Protection Advantage

The thermal-magnetic trip mechanism provides dual protection against electrical overloads and short circuits. The thermal element responds to sustained overcurrent conditions while the magnetic element provides instantaneous protection against high-level fault currents, ensuring comprehensive electrical safety and reliable circuit protection for professional electrical applications.

Why Choose Eaton Quality?

Eaton's century-plus experience in electrical power management innovation delivers unmatched reliability and performance. With UL 489 certification and compliance with Federal Specifications Classification W-C375, this circuit breaker meets the highest electrical safety standards. Trusted by electricians, electrical contractors, and facility professionals worldwide, Eaton continues to lead in electrical protection technology and dependable power management solutions for residential and commercial applications.