ED43B040L - 40Amp Circuit Breaker

ED43B040L - 40 Amp Circuit Breaker

The ED43B040L molded case circuit breaker is built to provide dependable protection for commercial and industrial electrical systems. Rated at 40 amps with a 3-pole configuration, this breaker is designed to help safeguard three-phase circuits from overloads and short circuits while maintaining steady system performance. Its ED4 frame design fits easily into compatible distribution equipment and panelboards commonly found in facility power systems.

With an interrupting rating of 18kA at 480VAC and 65kA at 240VAC, the ED43B040L is capable of handling significant fault currents, helping reduce the risk of equipment damage during electrical faults. The breaker is HACR rated, making it a practical option for circuits serving heating, air conditioning, and refrigeration equipment. It is also designed for operation in environments up to 40°C, which aligns with typical commercial electrical room conditions.

Installation is straightforward thanks to included line and load-side terminals, helping electricians complete installations efficiently. The breaker is also suitable for reverse feed applications, giving installers additional flexibility when integrating the device into existing systems. For maintenance teams, electrical contractors, and facility managers, the ED43B040L offers a reliable option for protecting important electrical distribution circuits.

Key Features and Benefits

• 40 Amp current rating: for dependable branch circuit protection
• 3-pole configuration: designed for three-phase electrical systems
• Interrupting capacity: of 18kA at 480VAC and 65kA at 240VAC
• ED4 frame design: compatible with many commercial and industrial panelboards
• HACR rated: suitable for HVAC and refrigeration equipment circuits
• Line and load-side terminals included: for easier installation
• Reverse feed capable: for flexible electrical system design
• Designed for operation: in ambient temperatures up to 40°C

Technical Specifications

• Part Number: ED43B040L
  
• Amperage Rating: 40 Amps
  
• Poles: 3
  
• Frame Type: ED4
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Temperature Rating: 40°C
  
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Terminal Type: Line and load-side terminals included
  
• Reverse Feed: Suitable for reverse feed applications
  
• Approximate Shipping Weight: 3.0 lbs
  
• Height: 6.35 inches
  

Material Compliance and Certifications

• Electrical Safety Standards: The ED43B040L circuit breaker is manufactured to meet commonly accepted electrical safety standards for molded case circuit breakers used in power distribution equipment.
• HACR Rating: Its HACR rating confirms suitability for heating, air conditioning, and refrigeration equipment circuits when installed according to applicable electrical codes and manufacturer guidelines.

Where It Works Best

• Commercial building panelboards
• Industrial electrical distribution systems
• HVAC and refrigeration circuits
• Three-phase motor protection circuits
• Facility maintenance and electrical upgrades