BRX2100 - 100Amp Circuit Breaker

BRX2100 - 100Amp Circuit Breaker

The Eaton BRX2100 is a 100 Amp two-pole thermal-magnetic circuit breaker designed for you to use in compatible Eaton BR loadcenters and panelboards. It provides overload and short-circuit protection for 120/240-volt electrical systems and is commonly used as a main breaker, feeder breaker, or equipment disconnect in residential, commercial, and light industrial applications.

Rated for 65 kAIC, the BRX2100 is often installed in systems where available fault current is higher than what standard branch breakers are designed to handle. It is commonly found in service equipment, distribution panels, subfeed applications, and other installations where a higher interrupting rating is required.

The thermal-magnetic trip mechanism combines overload protection and instantaneous short-circuit protection within a single breaker. The thermal portion responds to sustained overcurrent conditions, while the magnetic portion reacts to fault currents. This design has long been used throughout electrical distribution systems because it provides dependable protection without adding unnecessary complexity.

With support for wire sizes from #14 through 2/0 AWG and a compact two-pole footprint, the BRX2100 is frequently used for service upgrades, panel replacements, equipment retrofits, maintenance projects, and new construction where compatibility with Eaton BR equipment is required.

Key Features and Benefits

• 100 Amp two-pole thermal-magnetic circuit breaker
• Provides overload and short-circuit protection
• 65 kAIC interrupting rating
• Designed for 120/240 VAC systems
• Compatible with Eaton BR loadcenters and panelboards
• Suitable for main breaker and feeder breaker applications
• Thermal and magnetic trip protection
• Accepts wire sizes from #14 to 2/0 AWG
• Compact design for compatible BR equipment
• Used in residential, commercial, and light industrial installations
  

Technical Specifications

• Manufacturer: Eaton
  
• Catalog Number: BRX2100
  
• Product Type: Thermal-Magnetic Circuit Breaker
  
• Series: BR
  
• Amperage Rating: 100 Amps
  
• Voltage Rating: 120/240 VAC
  
• Frequency Rating: 50/60 Hz
  
• Number of Poles: 2
  
• Interrupt Rating: 65 kAIC
  
• Capacity: 65 kAIC
  
• Wire Size: #14-2/0 AWG
  
• Dimensions:
  • Length: 2.48 in
  • Width: 2 in
  • Height: 2.938 in
• Weight: 0.76 lb
  

Material Compliance and Certifications

The Eaton BRX2100 is manufactured to recognized industry standards for circuit protection and electrical distribution equipment.

• UL Listed – File E7819
• Federal Specifications Classification W-C375

These listings confirm compliance with established performance and safety requirements for molded-case circuit breakers.

Where It Works Best

• The BRX2100 is commonly installed in service entrance equipment, distribution panels, feeder circuits, subpanels, equipment disconnects, and other applications requiring a 100 Amp two-pole breaker.
• Its 65 kAIC interrupting rating makes it a common choice for commercial facilities, multi-unit buildings, industrial equipment installations, and electrical systems where available fault current exceeds the ratings of standard residential breakers. It is also frequently used for panel upgrades, service replacements, tenant improvements, and new construction projects.