Eaton BRHH280 Thermal Magnetic Circuit Breaker - 42 kAIC
Part Number: BRHH280
Quick Summary
Eaton BRHH280 thermal magnetic circuit breaker protects electrical circuits in panelboards, switchgear, and loadcenters. For engineers, nuisance trips and hard-to-service devices slow project timelines and drive maintenance costs. UL 490 listing and Federal Specifications W-C376 compliance support code-approved installations, while HACR and switching-duty options provide design flexibility for varied applications. As a robust, plug-on unit for Type BR Loadcenters, this breaker supports an 80 A service at 120/240 V, delivering reliable protection, easy field replacement, and long-term energy efficiency for modern industrial and commercial electrical systems. Its compact 1-inch footprint and common-trip design reduce panel space and wiring complexity, helping OEMs and facilities managers maintain compliant, scalable protection with Type BR Loadcenters and 1-in plug-on circuit breakers.
Product Information
Extended Description
BRHH280 Eaton: Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,80 A,42 kAIC,Two-pole,120/240V,BRH,Common breaker trip,#4-1/0 AWG Cu/Al,Q28,BRH,Type BR Loadcenters
Product Name
Eaton BR thermal magnetic circuit breaker
Catalog Number
BRHH280
UPC
786676382809
Product Length/Depth
3 in
Product Height
2.5 in
Product Width
3 in
Product Weight
0.75 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
80 A
Voltage rating
120/240 V
Trip Type
Common breaker trip
Circuit breaker type
BR
Mounting Method
Plug-on
Interrupt rating
42 kAIC
Main circuit breaker
BRH
Wire size
#4-1/0 AWG Cu/Al
Number of poles
Two-pole
Quantity
28
Feature: 1-Inch plug-on mounting. Business Impact: Simplifies retrofit and panel upgrades, reducing labor time and field errors. Application: Ideal for Type BR Loadcenters and new installations where space is at a premium. The design enables rapid swapping without extensive panel disassembly. Feature: 80 A amperage rating. Business Impact: Protects medium-sized branch circuits and feeds equipment efficiently, lowering the risk of nuisance trips while maintaining reliable service. Application: Common in commercial and light-industrial panels where full-load protection is required. Feature: 42 kAIC interrupt rating. Business Impact: Improves fault energy handling, reducing conductor damage and downtime during short circuits. Application: Suitable for higher fault environments and critical systems that demand robust protection. Feature: Two-pole with common trip. Business Impact: Ensures simultaneous tripping of all poles, enhancing safety and anti-shock protection for multi-wire circuits. Application: Essential for shared-neutral or 240 V circuits in panelboards. Feature: Wire size compatibility #4-1/0 AWG Cu/Al. Business Impact: Provides installation flexibility across varied feeder configurations, supporting both copper and aluminum conductors. Application: Facilitates diverse wiring schemes in industrial and commercial facilities. Feature: Compliance and options. Business Impact: UL 490 listed with W-C376 compliance and catalog notes including switching duty and HACR options, enabling adaptable protection strategies. Application: Meets regulatory requirements while allowing tailored protection settings for specific loads.
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FAQs
BRHH280 is designed for Type BR Loadcenters and other compatible Eaton plug-on panels. It is a 1-Inch, two-pole unit with an 80 A rating for 120/240 V service, and accepts #4-1/0 AWG Cu/Al conductors. Its common-trip design ensures synchronized tripping across poles, simplifying integration into existing protection schemes and panels.
The BRHH280 features a 42 kAIC interrupt rating, indicating its ability to interrupt high-energy fault currents without sustaining damage. This translates to improved fault protection, reduced damage to conductors and equipment, and higher reliability in environments with potential short-circuit events. It supports safer, compliant operation in industrial and commercial installations.
Install the BRHH280 as a plug-on, two-pole breaker into a compatible Type BR loadcenter. Use #4-1/0 AWG Cu or Al conductors and ensure the circuit is rated for 80 A at 120/240 V. The common-trip feature ensures simultaneous tripping, and the unit’s 1-Inch mounting facilitates rapid replacement or upgrades during panel servicing.
BRHH280 is UL 490 listed and complies with Federal Specifications W-C376. This combination supports code-compliant installation in regulated environments, with optional HACR and switching-duty configurations available per catalog notes, enabling tailored protection for HVAC or motor loads and other equipment requiring specific trip characteristics.
Choosing BRHH280 provides reliable, code-compliant protection with a robust 42 kAIC rating, reducing downtime and maintenance costs from nuisance trips. Its plug-on design speeds installations, while the 80 A, 120/240 V capability covers a wide range of panelboard configurations. Long-term ROI comes from improved system safety, easier servicing, and scalable protection for growing facilities.