EGB24040 - 40 Amp Circuit Breaker

EGB24040 - 40 Amp Circuit Breaker

If you're maintaining or repairing a compatible NF panelboard, the EGB24040 is designed to provide the dependable circuit protection your electrical system was built to use. This 2-pole, 40-amp bolt-on circuit breaker is engineered for 480Y/277VAC applications and combines proven thermal-magnetic trip technology with a built-in trip indicator, making it easier to identify when the breaker has opened due to an overload or short circuit.

Whether you're servicing an office building, manufacturing facility, school, healthcare campus, or retail property, the EGB24040 provides the form, fit, and function needed to keep compatible electrical distribution systems operating safely and efficiently.

Key Features and Benefits

• 40 Amp current rating
• Two-pole design for compatible 480Y/277VAC systems
• Bolt-on mounting for secure installation in NF panelboards
• Thermal-magnetic trip unit helps protect against overloads and short circuits
• Built-in trip indicator provides quick visual status after a fault
• Interrupting capacity:
  • 65kA @ 120VAC
  • 65kA @ 120/240VAC
  • 65kA @ 240VAC
  • 35kA @ 277VAC
  • 35kA @ 480Y/277VAC
• Compatible with aluminum and copper conductors
• HACR and HID rated
• Designed for operation at ambient temperatures up to 104°F (40°C)
• Built to last for long-term service in compatible electrical systems

Technical Specifications

• Catalog Number: EGB24040
  
• Series: EGB
  
• Frame: 125A EDB / EGB / EJB Frame
  
• Product Type: E-Frame Miniature Circuit Breaker
  
• Rated Current: 40 Amps
  
• Poles: 2
  
• Maximum Operating Voltage: 480Y/277VAC
  
• Trip Unit: Thermal-Magnetic
  
• Trip Unit Rating: 1800A
  
• Holding Current: 630A
  
• Interrupting Ratings:
  • 65kA @ 120VAC
  • 65kA @ 120/240VAC
  • 65kA @ 240VAC
  • 35kA @ 277VAC
  • 35kA @ 480Y/277VAC
• Mounting: Bolt-On
  
• Compatible Panelboard: NF Panelboard
  
• Wire Range:
  • Aluminum: AWG 12–2/0
  • Copper: AWG 14–2/0
• Dimensions:
  • Height: 5.66 inches
  • Width: 1.96 inches
  • Depth: 4.05 inches
• Weight: Approximately 3 lbs.
  
• Operating Temperature: 104°F (40°C)
  

Material Compliance and Certifications

The EGB24040 is cULus Listed, TAA Compliant, HACR Rated, and HID Rated, meeting recognized industry standards for safety and intended performance. It is designed for use in compatible NF panelboards and should always be installed in accordance with applicable electrical codes and manufacturer recommendations.

Where It Works Best

• Commercial office buildings
• Manufacturing facilities
• Schools and universities
• Hospitals and healthcare facilities
• Retail stores and shopping centers
• HVAC equipment
• Lighting panelboards
• HID lighting systems
• Facility maintenance and electrical retrofit projects