Eaton BRH370 BR Thermal Magnetic Circuit Breaker - UL 490
Part Number: BRH370
Quick Summary
The Eaton BRH370 BR thermal magnetic circuit breaker protects electrical distribution panels by interrupting fault currents across three phases in BR load centers. This solution addresses nuisance trips and undersized protection that can disrupt production schedules. It carries UL 490 certification and Federal Specifications W-C376, with catalog options that include HACR, shunt trip, and high-magnetic settings. By leveraging a common-trip, 3-pole design for demanding applications, you gain reliability, easier maintenance, and scalable protection for residential, commercial, and light industrial panel systems.
Product Information
Extended Description
BRH370 Eaton: Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,70 A,22 kAIC,Three-pole,240V,BRH,Common breaker trip,#4-1/0 AWG Cu/Al,BRH,Type BR Loadcenters
Product Name
Eaton BR thermal magnetic circuit breaker
Catalog Number
BRH370
UPC
786676372800
Product Length/Depth
3 in
Product Height
3 in
Product Width
3 in
Product Weight
2 lb
Compliances
Federal Specifications Classification W-C376
Certifications
UL 490
Catalog Notes
10-150A. single-, two- and three-pole, selected amperageavailable in switching duty, HACR, shunt trip and high magnetic setting
Used with
Type BR Loadcenters
Type
Type BR 1-Inch plug-on circuit breaker
Voltage rating
240 V - 240 V
Trip Type
Common breaker trip
Circuit breaker type
BR
Interrupt rating
22 kAIC
Main circuit breaker
BRH
Wire size
#4-1/0 AWG Cu/Al
Number of poles
Three-pole
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - BRH370
Eaton type BR circuit breaker limited warranty June 2024
Feature: Three-pole, common-trip design enables synchronized protection across all phases. Business Impact: Reduces the risk of partial outages and simplifies coordination in three-phase systems, lowering downtime and maintenance costs. Application: Ideal for three-phase feeders and Type BR Loadcenters in commercial and light industrial panels. Feature: 22 kAIC interrupt rating provides high fault current handling capability. Business Impact: Improves arc suppression and safety in high-energy installations, reducing equipment damage and safety incidents. Application: Main or branch circuit protection in panels fed from robust power feeds. Feature: 70 A rated continuous current with plug-on BR mounting. Business Impact: Fast, field-friendly installation minimizes commissioning time and wiring errors, boosting project efficiency. Application: Residential, commercial, and light industrial panel boards requiring reliable 70 A protection. Feature: Accepts #4-1/0 AWG Cu/Al wire. Business Impact: Supports a broad range of feeder configurations, enabling flexible panel designs and future upgrades. Application: Distribution feeders and subfeeders inside BR Loadcenters. Feature: Certifications and catalog options (UL 490, W-C376; HACR, shunt trip, high-magnetic settings). Business Impact: Ensures regulatory compliance and tailored protection schemes, reducing rework and warranty concerns. Application: Panels requiring recognized standards and configurable protection for diverse loads.
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FAQs
The BRH370 is a plug-on, three-pole device designed for Type BR load centers. Align the breaker with the bus bars, snap it onto the bus, and close the handle to engage a common trip. Ensure the circuit is de-energized, use Cu/Al wire up to #4-1/0 AWG, and torque per manufacturer specs. This approach minimizes installation time and wiring mistakes while delivering reliable protection.
The BRH370 is rated for 240 V, 70 A with a 22 kAIC interrupt capacity. This means it can safely interrupt high fault currents typical of panel feeders, protecting equipment and personnel. The common-trip design ensures all three poles operate together, enhancing phase coordination and reducing the risk of multi-phase faults.
Yes. The BRH370 supports catalog notes for HACR and high-magnetic settings and is available in switching duty variants. Its three-pole, 22 kAIC rating makes it a solid option for motor feeders and light-industrial panel boards, provided you verify duty cycle, ambient temperature, and wiring configurations align with the application requirements.
This breaker is UL 490 listed and conforms to Federal Specifications W-C376. Such certifications support compliance in building codes and electrical distribution projects, aiding procurement decisions and installation approvals. Always cross-check local regulations and ensure compatible BR Loadcenter usage for full compliance.
Choose the plug-on design to minimize field wiring and commissioning time. The common-trip, three-pole configuration improves protection coordination and reduces troubleshooting. For cost-effective protection, select HACR or shunt-trip options when needed, aligning protection with the load profile to reduce downtime and service calls over the system’s life.