Eaton BRHH120 Thermal Magnetic Circuit Breaker - 42 kAIC
Part Number: BRHH120
Quick Summary
The Eaton BRHH120 thermal magnetic circuit breaker protects panels and branch circuits in electrical distribution systems. Installers often face nuisance trips and mounting mismatches; BRHH120's plug-on design and common trip help minimize downtime. UL 490 listed, Federal Specifications W-C376 compliant, and HACR-capable options support heating, air conditioning, and refrigeration loads. Designed for Type BR Loadcenters and 120/240 V service, this unit delivers reliable protection with a compact footprint. The 20 A rating, 42 kAIC interrupt capacity, and copper/aluminum #14-4 wire compatibility simplify stocking and field wiring. With Eaton’s warranty and robust build, it reduces lifecycle costs and enhances panel reliability for commercial and residential applications.
Product Information
Extended Description
BRHH120 Eaton: Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,20 A,42 kAIC,Single-pole,120/240V,BRH,Common,#14-4 AWG Cu/Al,BRH,Type BR Loadcenters
Product Name
Eaton BR thermal magnetic circuit breaker
Catalog Number
BRHH120
UPC
786676002769
Product Length/Depth
3 in
Product Height
3 in
Product Width
2 in
Product Weight
0.3 lb
Warranty
Limited lifetime residential, 1 year commercial
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
120/240 V
Trip Type
Common
Circuit breaker type
BR
Mounting Method
Plug-on
Interrupt rating
42 kAIC
Main circuit breaker
BRH
Wire size
#14-4 AWG Cu/Al
Number of poles
Single-pole
Feature: 20 A amperage rating, 120/240 V operation, single-pole with common trip. Business Impact: Delivers precise overcurrent protection with coordinated shutdown on fault conditions. Application: Ideal for Type BR Loadcenters in residential and light commercial panels. Feature: Plug-on mounting and a compact 3 x 2 x 3 inch footprint. Business Impact: Speeds installation, reduces field wiring errors, and saves panel space. Application: Fits standard Type BR loads in BR Loadcenters for quick replacement. Feature: 42 kAIC interrupt rating. Business Impact: Supports higher fault current environments, protecting equipment and enabling safer panel operation. Application: Service and commercial panels with elevated short-circuit currents. Feature: Wire size compatibility with #14-4 AWG Cu/Al. Business Impact: Broadens conductor compatibility, easing stocking and installation. Application: Typical branch circuits in small to mid-size panels. Feature: Certifications and compliance — UL 490, Federal Specifications W-C376, HACR-capable when configured. Business Impact: Regulatory alignment and safer operation for HVAC and general-purpose loads. Application: Industrial and residential circuits in climate control or machinery panels. Feature: Warranty — Limited lifetime residential, 1 year commercial. Business Impact: Long-term protection, reducing lifecycle maintenance costs. Application: End-user deployments prioritizing reliability in budget-conscious builds.
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FAQs
Install BRHH120 as a plug-on unit into a Type BR load center. It uses a single-pole configuration with a common trip, accepts #14-4 AWG Cu/Al conductors, and fits within the 3 in x 2 in x 3 in footprint. Ensure the panel is rated for 120/240 V and verify the bus bar alignment before seating the breaker.
BRHH120 is a 20 A, 120/240 V thermal magnetic circuit breaker with a 42 kAIC interrupt rating. It is single-pole, Type BR, and plug-on mounted. Wire size compatibility is #14–4 AWG Cu/Al, with a compact 3 x 2 x 3 in form factor.
Yes. The BRHH120 supports HACR applications when configured and is compatible with Type BR Loadcenters commonly used in HVAC installations. This enables efficient protection for heating, air conditioning, and refrigeration circuits within standard panelboards.
BRHH120 is UL 490 listed and complies with Federal Specifications W-C376. These certifications reflect suitability for residential and commercial use, and support safe operation in regulated electrical environments.
The BRHH120 carries aLimited Lifetime warranty for residential use and a 1-year warranty for commercial applications. This provides long-term protection and reduces maintenance costs over the life of the installation.