Eaton Thermal Magnetic Circuit...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$189.04
$126.57

Eaton Thermal Magnetic Circuit Breaker 20A Four-Pole 120/240V 10kAIC BR Series Plug-On

(No reviews yet) Write a Review

Model: BR420

In Stock (leaves warehouse same day if ordered before 3pm ET)

$189.04
$126.57
Adding to cart… The item has been added
Free Shipping on orders over $99
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks

Eaton Thermal Magnetic Circuit Breaker 20A Four-Pole 120/240V 10kAIC BR Series Plug-On

Professional Electrical Circuit Protection Equipment

The Eaton Thermal Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for residential and commercial electrical distribution systems. This 20A four-pole circuit breaker provides reliable electrical protection designed for professional electricians, electrical contractors, and facility managers, offering the proven reliability and advanced technology that professionals trust from the global leader in intelligent power management.

Professional Features & Benefits

Electrical Performance Excellence

  • 20 Ampere Current Rating - Provides precise overcurrent protection for residential and commercial electrical circuits with reliable thermal-magnetic trip operation
  • Four-Pole Configuration - Delivers comprehensive protection for multi-wire branch circuits and specialized electrical applications requiring four-pole switching
  • 10 kAIC Interrupt Rating - Safely interrupts fault currents up to 10,000 amperes, providing robust short-circuit protection for standard electrical installations
  • 120/240V Voltage Rating - Compatible with standard residential and light commercial electrical systems for versatile installation applications

Installation & Protection Features

  • BR Series Plug-On Design - Quick and secure installation into Type BR loadcenters with reliable plug-on connection for professional electrical panel applications
  • Independent Trip Operation - Each pole operates independently for enhanced electrical safety and selective circuit protection in multi-pole applications
  • UL 489 Listed - Meets rigorous electrical safety standards and code compliance requirements for professional electrical installations

Technical Specifications

Amperage Rating: 20A, Voltage Rating: 120/240V, Number of Poles: Four-pole, Interrupt Rating: 10 kAIC, Circuit Breaker Type: BR Series, Trip Type: Independent, Mounting Method: Plug-on, Wire Size: #14-4 AWG Cu/Al, Used With: Type BR Loadcenters, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375, Dimensions: 3" H x 2" W x 3" D, Weight: 0.5 lb

Installation & Usage

  1. Verify electrical panel compatibility with Type BR loadcenters and confirm proper voltage rating match
  2. Turn off main electrical power and verify de-energized condition using appropriate electrical testing equipment
  3. Remove knockout panel cover and position circuit breaker for proper plug-on bus connection
  4. Connect branch circuit conductors to breaker terminals using #14-4 AWG copper or aluminum wire as specified
  5. Firmly press breaker onto bus stabs ensuring complete electrical connection and mechanical engagement
  6. Test breaker operation and verify proper electrical function before energizing the protected circuit

Professional Applications

Ideal for:

  • Residential Electrical Systems - Main electrical panels, subpanels, and branch circuit protection for homes and apartments
  • Commercial Building Applications - Office buildings, retail spaces, and light commercial electrical distribution systems
  • Multi-Wire Branch Circuits - Specialized four-pole protection for MWBC applications requiring simultaneous disconnection
  • HVAC Equipment Protection - Air conditioning units, heat pumps, and electrical heating systems requiring four-pole switching
  • Electrical Panel Upgrades - Replacement and retrofit applications in existing Type BR loadcenter installations
  • Code Compliance Projects - Electrical installations requiring UL 489 listed circuit protection devices
  • Professional Electrical Contracting - New construction and electrical renovation projects by licensed electrical contractors
  • Facility Maintenance - Electrical system maintenance and circuit protection replacement in commercial and institutional facilities

Thermal-Magnetic Protection Advantage

The thermal-magnetic trip mechanism provides dual protection against electrical overloads and short circuits. The thermal element responds to sustained overcurrent conditions while the magnetic element provides instantaneous protection against high-level fault currents, delivering comprehensive electrical safety for professional installations.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers the reliability and performance that electrical professionals demand. Our UL 489 listed circuit breakers meet the highest safety standards while providing the dependable protection that electricians, electrical contractors, and facility managers trust for critical electrical applications worldwide.

Manufacturer Resources

Product Specs

Amperage Rating:
20 A
Catalog Notes:
Non- CTL. Breaker does not have rejection tab feature.
Certifications:
UL 489
Circuit Breaker Type:
BR
Compliances:
Federal Specifications Classification W-C375
Interrupt Rating:
10 kAIC
Main Circuit Breaker:
BR
Mounting Method:
Plug-on
Number Of Poles:
Four-pole
Product Height:
3 in
Product Length Depth:
3 in
Product Type:
Thermal Magnetic Circuit Breaker
Product Weight:
.5 lb
Product Width:
2 in
Special Features:
Used with Type BR Loadcenters
Trip Type:
Independent
Used With:
Type BR Loadcenters
Voltage Rating:
120/240 V
Wire Size:
#14-4 AWG Cu/Al
Product Group:
Electrical
Product Subgroup:
Circuit Breaker
Department:
Electrical
Item Quantity:
28

Eaton BR420 – Frequently Asked Questions

How fast can I get the Eaton BR420 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Eaton BR420 come with a warranty?
Absolutely. The Eaton BR420 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Eaton BR420?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Eaton BR420 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.