Eaton BR Thermal Magnetic Circuit Breaker 100A Three-Pole
Professional Electrical Circuit Protection Equipment
The Eaton BR Thermal Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for residential and commercial electrical distribution systems. This 100A three-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
- 100 Ampere Rating - High-capacity current handling for demanding electrical loads with reliable overcurrent protection
- Three-Pole Configuration - Complete three-phase electrical protection with common trip mechanism for balanced load distribution
- 10 kAIC Interrupt Rating - Superior fault current interruption capability for enhanced electrical safety and system protection
- 120/240V Voltage Rating - Versatile voltage compatibility for standard residential and light commercial electrical applications
Installation & Protection Features
- Plug-On Mounting Design - Quick and secure installation into Type BR loadcenters with reliable electrical connection
- Common Trip Operation - Simultaneous tripping of all three poles ensures complete circuit isolation during fault conditions
- #1 AWG Cu/Al Wire Compatibility - Accommodates both copper and aluminum conductors for flexible installation options
Technical Specifications
Amperage Rating: 100A, Voltage Rating: 120/240V, Number of Poles: Three-pole, Interrupt Rating: 10 kAIC, Circuit Breaker Type: BR, Trip Type: Common breaker trip, Mounting Method: Plug-on, Wire Size: #1 AWG Cu/Al, Compatible With: Type BR Loadcenters, Dimensions: 2.9" W x 2.5" H x 3" D, Weight: 1.1 lb, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375
Installation & Usage
- Verify power is completely disconnected and lockout/tagout procedures are followed before installation
- Confirm circuit breaker amperage rating matches the intended electrical load and conductor size requirements
- Align the circuit breaker with the appropriate three-pole position in the Type BR loadcenter
- Press firmly until the plug-on connection is fully seated and mechanically secure
- Connect #1 AWG copper or aluminum conductors to the load terminals following NEC requirements
- Test circuit breaker operation and verify proper electrical connection before energizing the system
Professional Applications
Ideal for:
- Residential Electrical Systems - Main panel protection for large appliances, HVAC systems, and high-capacity electrical loads
- Commercial Electrical Distribution - Branch circuit protection in office buildings, retail spaces, and light commercial facilities
- Three-Phase Motor Protection - Reliable overcurrent protection for three-phase motors and industrial equipment
- HVAC System Protection - Circuit protection for air conditioning units, heat pumps, and commercial HVAC equipment
- Electrical Panel Upgrades - Replacement and upgrade applications in existing Type BR electrical distribution systems
- Load Center Applications - Primary circuit protection in residential and commercial load centers and panelboards
- Electrical Safety Systems - Critical overcurrent protection for electrical systems requiring reliable fault interruption
- Power Distribution Centers - Branch circuit protection in electrical distribution panels and switchboards
Thermal-Magnetic Protection Advantage
The thermal-magnetic trip mechanism provides dual protection against both overload and short-circuit conditions. The thermal element responds to sustained overcurrent conditions while the magnetic element provides instantaneous protection against high-level fault currents, ensuring comprehensive electrical system protection and enhanced safety for professional electrical installations.
Why Choose Eaton Quality?
With over a century of electrical power management innovation, Eaton delivers unmatched quality and reliability in circuit protection technology. This UL 489 listed circuit breaker represents Eaton's commitment to electrical safety standards and professional performance, trusted by electricians, electrical contractors, and facility professionals worldwide for dependable electrical protection and intelligent power management solutions.
EAT-BR3100 - spec sheet
Manufacturer Resources
Product Specs
- Amperage Rating:
- 100 A
- Certifications:
- UL 489
- Circuit Breaker Type:
- BR
- Compliances:
- Federal Specifications Classification W-C375
- Interrupt Rating:
- 10 kAIC
- Main Circuit Breaker:
- BR
- Mounting Method:
- Plug-on
- Number Of Poles:
- Three-pole
- Product Height:
- 2.5 in
- Product Length Depth:
- 3 in
- Product Type:
- Thermal Magnetic Circuit Breaker
- Product Weight:
- 1.1 lb
- Product Width:
- 2.9 in
- Trip Type:
- Common breaker trip
- Used With:
- Type BR Loadcenters
- Voltage Rating:
- 120/240 V
- Wire Size:
- #1 AWG Cu/Al
- Product Group:
- Electrical
- Product Subgroup:
- Circuit Breaker
- Department:
- Electrical
- Item Quantity:
- 28