EJB24100 - 100 Amp Circuit Breaker

EJB24100 - 100 Amp Circuit Breaker

When your dependable circuit protection matters, the Square D EJB24100 is built to deliver. This 100 Amp, 2-pole E-Frame circuit breaker is made for use in compatible Square D NF panelboards, helping safeguard electrical systems against overloads and short circuits in commercial and industrial environments. Its thermal-magnetic trip mechanism reacts to both sustained overcurrent conditions and sudden faults, helping minimize equipment damage and reduce downtime.

Key Features and Benefits

• 100 Amp current rating
• Two-pole configuration
• Bolt-on design for compatible Square D NF panelboards
• Thermal-magnetic trip unit protects against overloads and short circuits
• Integrated trip indicator speeds troubleshooting
• Rated for systems up to 480Y/277V AC
• Interrupting ratings up to 100 kA on applicable voltage systems
• HACR rated for qualifying HVAC and refrigeration applications

Technical Specifications

• Manufacturer: Square D
  
• Catalog Number: EJB24100
  
• Frame Type: E-Frame
  
• Current Rating: 100 Amps
  
• Poles: 2
  
• Maximum Operating Voltage: 480Y/277V AC
  
• Mounting Style: Bolt-On
  
• Panel Compatibility: Square D NF Panelboards
  
• Trip Unit: Thermal-Magnetic
  
• Protection: Overload and Short Circuit
  
• Trip Indicator: Yes
  
• Holding Current: 1000 Amps
  
• Trip Current: 2300 Amps
  
• Interrupting Ratings:
  • 100 kA @ 120V AC
  • 100 kA @ 120/240V AC
  • 100 kA @ 240V AC
  • 65 kA @ 277V AC
  • 65 kA @ 480Y/277V AC
• Wire Range:
  • Copper: AWG 14–2/0
  • Aluminum: AWG 12–2/0
• Terminal Type: Aluminum Lugs
  
• Dimensions:
  • Height: 5.66"
  • Width: 1.96"
  • Depth: 4.05"
• Weight: 3 lbs
  

Material Compliance and Certifications

The Square D EJB24100 is cULus Listed, HACR rated, and TAA compliant. It is calibrated for operation in ambient temperatures up to 40°C (104°F) and is intended for installation in compatible Square D NF panelboards.

Where It Works Best

• Square D NF panelboards
• Commercial buildings
• Industrial facilities
• Office complexes
• Schools and universities
• Healthcare facilities
• Retail locations
• Manufacturing plants
• HVAC and refrigeration systems
• Electrical upgrades, maintenance projects, and replacement installations