Eaton Thermal Magnetic Circuit Breaker 70A Three-Pole 240V 10kAIC BR Series Plug-On Common Trip
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 70A 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
- 70 Ampere Current Rating - High-capacity electrical protection for demanding residential and commercial circuits with reliable overcurrent protection
- Three-Pole Configuration - Complete three-phase electrical protection with common trip mechanism for balanced load protection and electrical safety
- 240V Voltage Rating - Professional voltage capacity for standard residential and light commercial electrical applications
- 10 kAIC Interrupt Rating - Robust fault current interruption capability providing reliable short-circuit protection for electrical systems
Installation & Protection Features
- Plug-On Mounting Method - Quick and secure installation into Type BR loadcenters with professional-grade electrical connections
- Common Breaker Trip - Simultaneous tripping of all three poles ensures complete circuit isolation and enhanced electrical safety
- Wire Compatibility #4-1/0 AWG Cu/Al - Versatile wire size accommodation for copper and aluminum conductors in professional electrical installations
Technical Specifications
Amperage Rating: 70A, 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: #4-1/0 AWG Cu/Al, Used With: Type BR Loadcenters, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375, Dimensions: 2.9" W x 2.5" H x 1.9" D, Weight: 0.6 lb
Installation & Usage
- Verify electrical power is completely disconnected and lockout/tagout procedures are followed before beginning installation
- Confirm loadcenter compatibility with Type BR circuit breakers and adequate space for three-pole installation
- Align circuit breaker with bus bars in loadcenter and firmly press plug-on connection until fully seated
- Connect circuit conductors to breaker terminals ensuring proper wire size (#4-1/0 AWG Cu/Al) and secure connections
- Verify proper three-pole common trip operation and test circuit breaker functionality before energizing
- Label circuit breaker clearly and update electrical panel directory for professional electrical system documentation
Professional Applications
Ideal for:
- Residential Electrical Systems - Main electrical panels, subpanels, and distribution boards requiring high-amperage three-phase protection
- Commercial Electrical Distribution - Light commercial facilities, office buildings, and retail spaces with 240V three-phase electrical loads
- HVAC System Protection - Air conditioning units, heat pumps, and commercial HVAC equipment requiring 70A three-pole protection
- Motor Control Applications - Three-phase motor circuits, pump systems, and industrial equipment with 240V power requirements
- Electrical Panel Upgrades - Modernization of existing electrical systems with reliable BR series circuit protection technology
- Load Center Applications - Type BR loadcenter installations requiring high-capacity three-pole circuit protection
- Electrical Safety Systems - Critical circuit protection for electrical systems requiring common trip functionality and reliable overcurrent protection
- Professional Electrical Installations - New construction, electrical renovations, and electrical system expansions requiring UL 489 certified protection
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 system protection for professional applications.
Why Choose Eaton Quality?
With over a century of electrical power management innovation, Eaton delivers unmatched quality and reliability in electrical protection equipment. This UL 489 listed circuit breaker represents Eaton's commitment to electrical safety and performance, trusted by electricians, electrical contractors, and facility professionals worldwide for dependable electrical system protection and intelligent power management solutions.
EAT-BR370 - spec sheet
Manufacturer Resources
Product Specs
- Amperage Rating:
- 70A
- 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:
- 1.9 in
- Product Type:
- Thermal Magnetic Circuit Breaker
- Product Weight:
- .6 lb
- Product Width:
- 2.9 in
- Quantity:
- 28
- Trip Type:
- Common breaker trip
- Used With:
- Type BR Loadcenters
- Voltage Rating:
- 240 V - 240 V
- Wire Size:
- #4-1/0 AWG Cu/Al
- Product Subgroup:
- Circuit Breaker