Eaton BRH140 Thermal Magnetic Circuit Breaker - UL 490

Part Number: BRH140
Manufacturer
Eaton
Part number
BRH140

Quick Summary

The Eaton BRH140 thermal magnetic circuit breaker protects BR load centers by delivering reliable overcurrent protection for 120/240 V single-pole panels. Engineers often struggle to balance rugged field protection with quick, error-free installation in compact enclosures. This unit carries UL 490 listing and Federal Specifications W-C376 compliance, with HACR-capable options to support HVAC and lighting circuits. The plug-on design simplifies mounting in BR Loadcenters, enabling faster panel upgrades and consistent fault protection. In practice, it translates to reduced commissioning time, fewer field adjustments, and lower commissioning risk for projects across residential and light commercial applications.

Product Information

Extended Description

BRH140 Eaton: Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,40 A,22 kAIC,Single-pole,120/240V,BRH,#14-4 AWG Cu/Al,BRH,Type BR Loadcenters
Product Name
Eaton BR thermal magnetic circuit breaker
Catalog Number
BRH140
UPC
786676373258
Product Length/Depth
3 in
Product Height
3 in
Product Width
1 in
Product Weight
0.3 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
120/240 V
Circuit breaker type
BR
Interrupt rating
22 kAIC
Main circuit breaker
BRH
Wire size
#14-4 AWG Cu/Al
Number of poles
Single-pole
Feature: 40 A current rating with a 22 kAIC interrupt rating at 120/240 V, in a Type BR 1-Inch plug-on form factor. Business Impact: Delivers strong fault current protection while enabling efficient panel layouts, reducing downtime and preventing damage to downstream equipment. Application: Ideal for single-pole branch circuits in BR Loadcenters within residential and light commercial installations. Feature: Rugged, compact footprint (3 in x 3 in x 1 in) and compatible with #14-4 AWG Cu/Al conductors. Business Impact: Saves enclosure space and simplifies wiring schemes, cutting install time and labor costs. Application: Suitable for tight electrical rooms and retrofit projects where space is at a premium. Feature: UL 490 listing and Federal Specifications W-C376 compliance, with HACR-capable variants. Business Impact: Improves regulatory assurance and code compliance, reducing risk during inspections and audits. Application: Critical for HVAC and lighting circuits in compliant panel assemblies. Feature: Catalog notes include options for 10-150 A, with switching duty, shunt trip and high magnetic settings. Business Impact: Provides scalable protection and customization to match application demands, enabling configurable protection schemes without replacing devices. Application: Useful in mixed-load centers and controlled environments requiring precise protection profiles. Feature: Compatibility with Type BR Loadcenters and a plug-on design for faster installation. Business Impact: Shortens commissioning time, lowers field errors, and enhances serviceability. Application: Suitable for new builds and retrofits in residential and light commercial projects where quick upgrades are valued. Industry Context: With its combination of high interrupt rating, standard electrical ratings, and recognized certifications, the BRH140 supports reliable, code-compliant circuit protection while offering installation efficiency and long-term operational resilience.

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FAQs

Install the BRH140 as a 1-Inch plug-on circuit breaker into a compatible Type BR load center. Ensure the panel is de-energized, wire with #14-4 AWG Cu/Al, and secure the device in the bus with proper alignment. Verify 120/240 V operation and that the single-pole configuration matches the circuit requirements before commissioning.
The BRH140 is a 40 A, 22 kAIC interrupt-rated, single-pole BR circuit breaker rated for 120/240 V. It uses a Type BR 1-Inch plug-on design and is listed under UL 490 with Federal Specifications W-C376 compliance. It accepts #14-4 AWG Cu/Al conductors and is intended for BR Loadcenters.
Yes. The BRH140 is designed for Type BR load centers and BR-series panel configurations, making it suitable for residential service panels and light commercial distribution. Its plug-on installation, compact footprint, and 120/240 V single-pole protection align with common use cases in these environments.
BRH140 carries UL 490 certification and complies with Federal Specifications W-C376, ensuring regulatory alignment for panel installations. These certifications support safer operation, better inspection outcomes, and compatibility with building codes. HACR-capable variants further extend applicability to HVAC and related control circuits.
BRH140 offers durable, reliable overcurrent protection with no moving parts requiring routine maintenance beyond normal commissioning checks. Its high interrupt rating and robust construction help reduce nuisance trips and downtime, contributing to lower operating costs over the panel’s service life. Warranty and documentation from Eaton provide additional support for installed base ROI.