Eaton BRH345 BR Thermal Magnetic Circuit Breaker - 22 kAIC
Part Number: BRH345
Quick Summary
Eaton BRH345 BR thermal magnetic circuit breaker protects critical power systems with fast, reliable overcurrent protection for BR load centers. Engineers often face nuisance trips or wrong fitment in panelboards, costing downtime and maintenance. UL 490 certification and Federal Specifications W-C376 compliance ensure safety and code alignment, while the 22 kAIC interrupt rating supports critical loads. With 45 A at 240 V in a three-pole plug-on package, the BRH345 delivers reliable protection for BR Loadcenters and streamlines sourcing for engineers and procurement teams. This combination supports compliance with electrical codes while enabling efficient maintenance routines and reduced inventory complexity. Engineering teams appreciate the straightforward integration.
Product Information
Extended Description
BRH345 Eaton: Eaton BR thermal magnetic circuit breaker,Type BR 1-Inch plug-on circuit breaker,45 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
BRH345
UPC
786676002721
Product Length/Depth
3 in
Product Height
3 in
Product Width
3 in
Product Weight
2 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
45 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 - BRH345
Eaton type BR circuit breaker limited warranty June 2024
Feature: 45 A, 240 V, three‑pole with common trip. Business Impact: Ensures coordinated protection for multi‑phase feeders, reducing nuisance trips and protecting downstream equipment. Application: Ideal for Type BR Loadcenters in light commercial and industrial panels where consistent performance matters. Feature: Type BR 1‑inch plug‑on circuit breaker with plug‑on mounting. Business Impact: Speeds installation and simplifies future servicing with straightforward replacement in standard BR panels. Application: Fully compatible with BR Loadcenters and BRH family accessories, enabling rapid panel upgrades. Feature: 22 kAIC interrupt rating; 3‑pole configuration; #14‑4 Cu/Al wire. Business Impact: Delivers high fault‑current protection while supporting energy‑efficient motors and controls; reduces risk of widespread power outages. Application: Suitable for three‑phase feeders in commercial and light industrial facilities. Feature: UL 490 listing; Federal Specifications W-C376 compliance; Warranty: Limited lifetime residential, one year commercial. Business Impact: Verifies safety, quality, and regulatory alignment; lowers total cost of ownership through durable performance and predictable service life. Application: Works with Type BR Loadcenters across residential, commercial, and light industrial installations.
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FAQs
BRH345 is a three‑pole plug on breaker designed for Type BR load centers. It uses a standard plug‑on mounting method and accepts Cu or Al wire within the #14 to #4 range. Confirm 240 V panel rating and ensure the unit is used with compatible BR panels for proper bus alignment and safe, code‑compliant installation.
BRH345 provides a 45 A amperage rating at 240 V with a three‑pole configuration and a common trip. It features a 22 kAIC interrupt rating, enabling fast fault interruption and protection of feeders and downstream equipment in multi‑phase circuits within BR load centers.
Yes. With its Type BR plug‑on design and three‑pole common‑trip configuration, BRH345 is well suited for commercial panels and BR load centers. It supports dependable protection for motors, controls, and feeders while simplifying panel upgrades and serviceability in busy commercial environments.
BRH345 carries UL 490 listing and complies with Federal Specifications W‑C376. These certifications ensure safety, compatibility with standard electrical assemblies, and alignment with regulatory requirements for building electrical systems.
The device carries a limited lifetime warranty for residential use and a one year warranty for commercial use. Routine maintenance includes periodic inspection of mounting integrity, terminal torque checks, and verifying proper wire termination to maintain reliable protection and minimize downtime.