EJB34100 - 100 Amp Circuit Breaker

EJB34100 - 100 Amp Circuit Breaker

When you need dependable circuit protection for a compatible Square D NF panelboard, the Square D EJB34100 is built to deliver. This 100 Amp, 3-pole E-Frame circuit breaker combines thermal and magnetic trip protection to guard electrical systems against both sustained overloads and sudden short circuits. The bolt-on mounting design keeps the breaker securely installed, while the built-in trip indicator lets maintenance personnel quickly see when the breaker has tripped because of a fault.

Key Features and Benefits

• 100 Amp current rating
• Three-pole design for three-phase power distribution
• Thermal-magnetic trip unit protects against overloads and short circuits
• Bolt-on mounting for compatible Square D NF panelboards
• Built-in trip indicator helps speed troubleshooting
• Rated for 480Y/277V AC applications
• Up to 100 kA interrupting capacity at applicable voltages

Technical Specifications

• Manufacturer: Square D
  
• Catalog Number: EJB34100
  
• Series: EJB
  
• Frame Type: E-Frame
  
• Current Rating: 100 Amps
  
• Voltage Rating: 480Y/277V AC
  
• Poles: 3
  
• Mounting Style: Bolt-On
  
• Compatible Panelboards: Square D NF
  
• Trip Unit: Thermal-Magnetic
  
• Interrupting Rating:
  • 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: 14 AWG–2/0 AWG
  • Aluminum: 12 AWG–2/0 AWG
• Dimensions:
  • Height: 5.66"
  • Width: 2.94"
  • Depth: 4.05"
• Weight: Approximately 4 lbs.
  

Material Compliance and Certifications

The Square D EJB34100 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 use in compatible Square D NF panelboards.

Where It Works Best

• Commercial buildings
• Industrial facilities
• Schools and universities
• Healthcare facilities
• Office complexes
• Retail buildings