Eaton BRH320 BR thermal magnetic circuit breaker - UL 490
Part Number: BRH320
Quick Summary
The Eaton BRH320 BR thermal magnetic circuit breaker protects power circuits in industrial and commercial panels, delivering fast, predictable interruption when limits are exceeded. Engineers often wrestle with nuisance trips and space constraints, needing a reliable, common-trip solution that coordinates protection across feeders and subpanels. UL 490 certification and Federal Specifications W-C376, plus Type BR loadcenter compatibility, ensure regulatory compliance and robust fault-current handling with a 22 kAIC rating. Its plug-on design and compact 3x3x3 in footprint enable quick installations, reduce panel depth, and support scalable protection as electrical systems evolve. This combination of performance, install ease, and proven Eaton reliability adds measurable value for projects and ongoing maintenance.
Product Information
Extended Description
BRH320 Eaton: Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,20 A,22 kAIC,Three-pole,240V,BRH,Common breaker trip,#14-4 AWG Cu/Al,Q28,BRH,Type BR Loadcenters
Product Name
Eaton BR thermal magnetic circuit breaker
Catalog Number
BRH320
UPC
786676372558
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
Amperage Rating
20 A
Voltage rating
240 V - 240 V
Trip Type
Common breaker trip
Circuit breaker type
BR
Mounting Method
Plug-on
Interrupt rating
22 kAIC
Main circuit breaker
BRH
Wire size
#14-4 AWG Cu/Al
Number of poles
Three-pole
Quantity
28
Residential and Light Commercial, Load centers and Circuit Breakers, Volume 1 Tab 1
Eaton Specification Sheet - BRH320
Eaton type BR circuit breaker limited warranty June 2024
Three-pole design with a 20 A rating and 240 V capacity provides comprehensive protection for multi-line circuits, and the plug-on mounting simplifies panel upgrades, reducing install time and labor costs. The common breaker trip feature improves coordination across feeders and subpanels, minimizing nuisance trips and enhancing system reliability in daily operations. With a 22 kAIC interrupt rating, it delivers robust fault-current handling for moderate-to-high fault scenarios, improving safety margins for industrial equipment and critical machinery. UL 490 certification and Federal Specifications W-C376 ensure regulatory compliance, easing procurement and project approvals for code-enabled installations in commercial facilities and manufacturing environments. Compatibility with Type BR Loadcenters ensures seamless integration into existing Eaton ecosystems, while the compact 3x3x3 in footprint supports more efficient panel layouts and easier retrofits. The BRH320’s rugged build and lightweight design still provide durable performance in harsh environments, supporting lower lifecycle costs and predictable maintenance needs. The catalog notes indicate available configurations for switching duty, HACR, shunt trip, and high-magnetic settings, enabling customization to meet specific application requirements and non-standard duty cycles.
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FAQs
The BRH320 is a Type BR 1-Inch plug-on circuit breaker designed for Eaton BR load centers. It accommodates three poles and wires with #14-4 AWG Cu/Al, making it suitable for standard industrial and commercial panel upgrades. Its plug-on mounting enables quick replacement, minimizing downtime during retrofit projects or routine service, while maintaining compatibility with existing BR-series devices in the same panel lineup.
BRH320 is a three-pole, 20 A, 240 V circuit breaker with a common trip and a 22 kAIC interrupt rating. This configuration provides coordinated protection across multi-line circuits, supports reliable fault interruption, and aligns with typical feeder and main-breaker protection schemes in Type BR installations. The device is built to deliver consistent performance under load, minimizing nuisance trips in normal operation.
Catalog notes for the BR line indicate available configurations include switching duty, HACR, shunt trip, and high-magnetic settings. While the BRH320 is a standard 20 A, 240 V unit, you should verify the specific variant in the catalog to confirm HACR compatibility or motor protection features for your exact application. For panel builders, this ensures coordinated protection for motors and heating loads within Type BR load centers.
BRH320 carries UL 490 certification and complies with Federal Specifications W-C376, providing regulatory assurance for commercial and industrial installations. These certifications support safe operation, standarized protection performance, and easier compliance documentation when bidding projects or undergoing inspections.
The plug-on mounting, compact 3x3x3 in footprint, and 2 lb weight simplify handling and installation, reducing labor time and panel space usage. The common trip, 22 kAIC interrupt rating, and Type BR compatibility deliver reliable, predictable protection with lower maintenance needs and longer intervals between servicing. This translates to faster project delivery, decreased downtime, and improved total cost of ownership for panel upgrades and new builds.