EGB34050 - 50 Amp Circuit Breaker

EGB34050 - 50 Amp Circuit Breaker

Whether you're replacing a breaker during scheduled maintenance or restoring power to an existing system, the EGB34050 50 Amp, 3-pole circuit breaker is designed to provide the compatibility you need for NF panelboards. Built for form, fit, and functional replacement, this breaker helps maintain the original design of your electrical distribution system while delivering dependable protection for three-phase circuits. Its bolt-on mounting ensures a secure installation, making it a practical choice for commercial and industrial facilities that rely on proven electrical equipment.

At the heart of the EGB34050 is a thermal-magnetic trip unit that responds to both overloads and short-circuit conditions. The thermal element helps protect against prolonged overcurrent, while the magnetic element reacts quickly to higher fault currents.

Key Features and Benefits

• 50 Amp continuous current rating
• 3-pole design for three-phase electrical systems
• Bolt-on mounting for secure installation in compatible NF panelboards
• Thermal-magnetic trip unit protects against overloads and short circuits
• Built-in trip indicator for quick visual status identification
• Rated for systems up to 480Y/277 VAC
• Interrupt ratings up to:
  • 65kA @ 120 VAC
  • 65kA @ 120/240 VAC
  • 65kA @ 240 VAC
  • 35kA @ 277 VAC
  • 35kA @ 480Y/277 VAC
• HACR rated for HVAC equipment
• UL Listed for HID lighting applications
• Designed for form, fit, and functional replacement in compatible legacy electrical systems
• Built for dependable, long-term operation
  

Technical Specifications

• Catalog Number: EGB34050
  
• Rated Current: 50 Amps
  
• Number of Poles: 3
  
• Frame Type: E-Frame (EGB Series)
  
• Mounting Type: Bolt-On
  
• Maximum Operating Voltage: 480Y/277 VAC
  
• Trip Unit Technology: Thermal-Magnetic
  
• Trip Unit Rating: 1800A
  
• Holding Current: 630A
  
• Protection Type: Overload and Short-Circuit
  
• Interrupt Ratings:
  • 65kA @ 120 VAC
  • 65kA @ 120/240 VAC
  • 65kA @ 240 VAC
  • 35kA @ 277 VAC
  • 35kA @ 480Y/277 VAC
• Electrical Connections: Aluminum lugs
  
• Compatible Wire Range:
  • Aluminum: AWG 12–2/0
  • Copper: AWG 14–2/0
• Tightening 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
• Operating Temperature: 40°C (104°F)
  
• Dimensions: 5.66" H × 2.94" W × 4.05" D
  
• Weight: Approximately 4 lbs
  

Material Compliance and Certifications

• cULus Listed
• UL Listed for High Intensity Discharge (HID) applications
• HACR Rated
• TAA Compliant
• Calibrated for operation in ambient temperatures up to 40°C (104°F)
  

Where It Works Best

• Commercial office buildings
• Manufacturing facilities
• Industrial plants
• Schools and universities
• Healthcare facilities
• HVAC equipment circuits
• HID lighting systems
• Three-phase electrical distribution panels