ED43B090L - 90Amp Circuit Breaker

ED43B090L - 90 Amp Circuit Breaker

The ED43B090L Sentron molded case circuit breaker provides dependable overcurrent protection for commercial and industrial electrical systems that require steady, reliable performance. Designed on the ED4 frame platform, this 90-amp, 3-pole breaker helps protect wiring and connected equipment from overloads and short circuits while supporting stable power distribution. With an interrupting capacity of 18kA at 480VAC and 65kA at 240VAC, it is well-suited for facilities w,here fault protection is essential for both safety and system uptime. The breaker is HACR rated, making it appropriate for heating, air conditioning, and refrigeration equipment, and it is built to operate in 40°C ambient conditions commonly found in electrical rooms and mechanical areas. Installation is straightforward thanks to included line- and load-side terminals, and the design also allows for reverse feed applications, giving electricians additional flexibility when integrating it into existing panels or new distribution setups. For contractors, maintenance teams, and facility managers looking for consistent circuit protection, the ED43B090L offers a practical and dependable option.

Key Features and Benefits

• 90 Amp Rating – Designed to protect branch circuits and equipment from overloads and short circuits.
• 3-Pole Breaker – Suitable for three-phase electrical systems used in commercial and industrial facilities.
• High Interrupting Capacity – Rated 18kA at 480VAC and 65kA at 240VAC to safely interrupt fault currents.
• Sentron Style Molded Case Construction – Built for consistent electrical protection in distribution equipment.
• HACR Rated – Approved for HVAC and refrigeration equipment circuits.
• Reverse Feed Capability – Can be installed with power entering from either end of the breaker.
• Line and Load Terminals Included – Simplifies installation and wiring.
• Designed for 40°C Environments – Operates reliably under typical electrical room temperatures.
  

Technical Specifications

• Part Number: ED43B090L
  
• Amperage: 90A
  
• Poles: 3
  
• Frame Type: ED4
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Temperature Rating: 40°C
  
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Terminals: Line and load-side terminals included
  
• Reverse Feed: Suitable for reverse feed installation
  
• Approximate Height: 6.35 in
  
• Ship Weight: 3.0 lbs
  

Material Compliance and Certifications

• Industry Standards: The ED43B090L molded case circuit breaker is produced to align with recognized electrical safety and performance standards used in modern power distribution systems.
• Code Compliance: Sentron-style breakers are commonly installed in UL-listed equipment and are designed for use in systems that follow National Electrical Code (NEC) requirements and applicable local electrical regulations.
  

Where It Works Best

• Commercial panelboards and distribution panels
• Industrial electrical systems and equipment protection
• HVAC and refrigeration circuits requiring HACR-rated protection
• Motor protection applications
• Electrical maintenance, replacements and system upgrades