EGB24090 - 90 Amp Circuit Breaker

EGB24090 - 90 Amp Circuit Breaker

When you're maintaining an existing electrical system, selecting the right replacement breaker is key to keeping your equipment operating as intended. The EGB24090 E-Frame Miniature Circuit Breaker is a 2-pole, 90-amp bolt-on circuit breaker designed for use in compatible NF panelboards, providing the form, fit, and function needed for a seamless replacement. Equipped with a thermal-magnetic trip unit, it responds to both prolonged overloads and instantaneous short circuits, helping to protect branch circuits and connected equipment. A built-in trip indicator provides a clear visual signal when the breaker has tripped, making inspections and troubleshooting faster and more convenient.

Key Features and Benefits

• 90 Amp current rating: for branch circuit protection
• 2-pole configuration: for compatible 480Y/277VAC electrical systems
• Bolt-on mounting: for secure installation in compatible NF panelboards
• Thermal-magnetic trip unit: helps protect against overloads and short circuits
• Built-in trip indicator: provides quick visual confirmation after a trip
• Interrupting ratings of:
  • 65kA @ 120VAC
  • 65kA @ 120/240VAC
  • 65kA @ 240VAC
  • 35kA @ 277VAC
  • 35kA @ 480Y/277VAC
• Compatible with both copper and aluminum conductors
• HACR rated: for compatible HVAC applications
• Calibrated for operation at 104°F (40°C)
• Built to last: for dependable service in compatible electrical systems
  

Technical Specifications

• Catalog Number: EGB24090
  
• Series: EGB
  
• Frame Type: 125A EDB / EGB / EJB Frame
  
• Product Type: E-Frame Miniature Circuit Breaker
  
• Rated Current: 90 Amps
  
• Number of Poles: 2
  
• Maximum Operating Voltage: 480Y/277VAC
  
• Trip Unit Technology: Thermal-Magnetic
  
• Trip Unit Rating: 2300A
  
• Holding Current: 1000A
  
• Interrupting Capacity:
  • 65kA @ 120VAC
  • 65kA @ 120/240VAC
  • 65kA @ 240VAC
  • 35kA @ 277VAC
  • 35kA @ 480Y/277VAC
• Mounting Type: Bolt-On
  
• Compatible Panelboard: NF Panelboard
  
• Electrical Connections: Aluminum lugs
  
• Compatible Wire Sizes:
  • Aluminum: AWG 12–2/0
  • Copper: AWG 14–2/0
• Terminal Torque:
  • 34.5 lb-in (3.9 N·m) for AWG 14–10
  • 49.6 lb-in (5.6 N·m) for AWG 8–2/0
• Dimensions:
  • Height: 5.66 inches
  • Width: 1.96 inches
  • Depth: 4.05 inches
• Weight: Approximately 3 lbs.
  
• Ambient Operating Temperature: Up to 104°F (40°C)
  

Material Compliance and Certifications

The EGB24090 is cULus Listed, TAA Compliant, and HACR Rated, meeting recognized industry standards for safety and intended application. It is designed for installation in compatible NF panelboards and should be installed in accordance with applicable electrical codes and manufacturer specifications.

Where It Works Best

• Commercial office buildings
• Manufacturing and industrial facilities
• Healthcare facilities
• Educational campuses
• Retail buildings
• HVAC equipment and mechanical systems
• Electrical distribution panelboards
• Maintenance and retrofit projects
• Facilities requiring a compatible 90-amp, 2-pole bolt-on circuit breaker