Eaton Thermal Magnetic Circuit...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$289.43
$208.31

Eaton Thermal Magnetic Circuit Breaker 100A Three-Pole 120/240V 10kAIC BR Type Plug-On Common Trip

(No reviews yet) Write a Review

Model: BR3100

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

$289.43
$208.31
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 BR Thermal Magnetic Circuit Breaker 100A Three-Pole

Professional Electrical Circuit Protection Equipment

The Eaton BR Thermal Magnetic Circuit Breaker delivers exceptional electrical power management and control performance for residential and commercial electrical distribution systems. This 100A three-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

  • 100 Ampere Rating - High-capacity current handling for demanding electrical loads with reliable overcurrent protection
  • Three-Pole Configuration - Complete three-phase electrical protection with common trip mechanism for balanced load distribution
  • 10 kAIC Interrupt Rating - Superior fault current interruption capability for enhanced electrical safety and system protection
  • 120/240V Voltage Rating - Versatile voltage compatibility for standard residential and light commercial electrical applications

Installation & Protection Features

  • Plug-On Mounting Design - Quick and secure installation into Type BR loadcenters with reliable electrical connection
  • Common Trip Operation - Simultaneous tripping of all three poles ensures complete circuit isolation during fault conditions
  • #1 AWG Cu/Al Wire Compatibility - Accommodates both copper and aluminum conductors for flexible installation options

Technical Specifications

Amperage Rating: 100A, Voltage Rating: 120/240V, Number of Poles: Three-pole, Interrupt Rating: 10 kAIC, Circuit Breaker Type: BR, Trip Type: Common breaker trip, Mounting Method: Plug-on, Wire Size: #1 AWG Cu/Al, Compatible With: Type BR Loadcenters, Dimensions: 2.9" W x 2.5" H x 3" D, Weight: 1.1 lb, Certifications: UL 489, Compliances: Federal Specifications Classification W-C375

Installation & Usage

  1. Verify power is completely disconnected and lockout/tagout procedures are followed before installation
  2. Confirm circuit breaker amperage rating matches the intended electrical load and conductor size requirements
  3. Align the circuit breaker with the appropriate three-pole position in the Type BR loadcenter
  4. Press firmly until the plug-on connection is fully seated and mechanically secure
  5. Connect #1 AWG copper or aluminum conductors to the load terminals following NEC requirements
  6. Test circuit breaker operation and verify proper electrical connection before energizing the system

Professional Applications

Ideal for:

  • Residential Electrical Systems - Main panel protection for large appliances, HVAC systems, and high-capacity electrical loads
  • Commercial Electrical Distribution - Branch circuit protection in office buildings, retail spaces, and light commercial facilities
  • Three-Phase Motor Protection - Reliable overcurrent protection for three-phase motors and industrial equipment
  • HVAC System Protection - Circuit protection for air conditioning units, heat pumps, and commercial HVAC equipment
  • Electrical Panel Upgrades - Replacement and upgrade applications in existing Type BR electrical distribution systems
  • Load Center Applications - Primary circuit protection in residential and commercial load centers and panelboards
  • Electrical Safety Systems - Critical overcurrent protection for electrical systems requiring reliable fault interruption
  • Power Distribution Centers - Branch circuit protection in electrical distribution panels and switchboards

Thermal-Magnetic Protection Advantage

The thermal-magnetic trip mechanism provides dual protection against both overload and short-circuit conditions. The thermal element responds to sustained overcurrent conditions while the magnetic element provides instantaneous protection against high-level fault currents, ensuring comprehensive electrical system protection and enhanced safety for professional electrical installations.

Why Choose Eaton Quality?

With over a century of electrical power management innovation, Eaton delivers unmatched quality and reliability in circuit protection technology. This UL 489 listed circuit breaker represents Eaton's commitment to electrical safety standards and professional performance, trusted by electricians, electrical contractors, and facility professionals worldwide for dependable electrical protection and intelligent power management solutions.



EAT-BR3100 - spec sheet

Manufacturer Resources

Product Specs

Amperage Rating:
100 A
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:
Three-pole
Product Height:
2.5 in
Product Length Depth:
3 in
Product Type:
Thermal Magnetic Circuit Breaker
Product Weight:
1.1 lb
Product Width:
2.9 in
Trip Type:
Common breaker trip
Used With:
Type BR Loadcenters
Voltage Rating:
120/240 V
Wire Size:
#1 AWG Cu/Al
Product Group:
Electrical
Product Subgroup:
Circuit Breaker
Department:
Electrical
Item Quantity:
28

Eaton BR3100 – Frequently Asked Questions

How fast can I get the Eaton BR3100 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 BR3100 come with a warranty?
Absolutely. The Eaton BR3100 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 BR3100?
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 BR3100 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.