ED43B045L - 45Amp Circuit Breaker

ED43B045L - 45 Amp Circuit Breaker

The ED43B045L molded case circuit breaker is designed to provide dependable overcurrent protection in commercial and industrial electrical distribution systems. Built on the ED4 frame platform, this 45-amp, 3-pole breaker helps protect electrical circuits from overloads and short circuits while maintaining consistent performance in environments rated up to 40°C ambient temperature. With an interrupting capacity of 18k A.I.C. at 480VAC and 65k A.I.C. at 240VAC, the ED43B045L is suited for installations where reliable fault interruption is essential to protect equipment and maintain system stability. This Sentron-style circuit breaker includes both line and load-side terminals, making installation straightforward for electricians and maintenance professionals. The breaker is also suitable for reverse feed applications, offering flexibility when integrating it into existing electrical panels or distribution equipment. In addition, the HACR rating allows it to be used with heating, air conditioning, and refrigeration equipment, making it a practical option for facilities that rely on HVAC-driven infrastructure.

Key Features and Benefits

• 45 Amp Protection – Designed to safeguard circuits against overload and short circuit conditions.
• 3-Pole Breaker Design – Ideal for three-phase power systems commonly found in commercial and industrial environments.
• High Fault Interruption Capacity – Rated 18k A.I.C. at 480VAC and 65k A.I.C. at 240VAC for dependable circuit protection.
• ED4 Frame Construction – Compatible with electrical distribution equipment designed for the ED4 breaker format.
• HACR Rated – Approved for use in heating, air conditioning, and refrigeration circuits.
• Reverse Feed Compatible – Provides flexibility during installation or system upgrades.
• Included Line and Load Terminals – Helps simplify wiring and installation.
• Stable Operation at 40°C – Designed to perform reliably in typical electrical room environments.
  

Technical Specifications

• Part Number: ED43B045L
  
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Frame Type: ED4
  
• Amperage Rating: 45 Amps
  
• Poles: 3
  
• Interrupting Rating:
  • 18k A.I.C. @ 480VAC
  • 65k A.I.C. @ 240VAC
• Ambient Temperature Rating: 40°C
  
• Terminals: Line and load-side terminals included
  
• Reverse Feed: Suitable
  
• Approximate Ship Weight: 3.0 lbs
  
• Height: 6.35 inches
  

Material Compliance and Certifications

• Industry Standards: The ED43B045L circuit breaker is produced in accordance with widely recognized electrical safety and performance standards used in commercial and industrial power distribution systems.
• HACR Certification: Its HACR certification confirms suitability for circuits supplying heating, air conditioning, and refrigeration equipment, helping support installations that follow established electrical code requirements.
  

Where It Works Best

• Commercial electrical panelboards
• Industrial control panels
• HVAC and refrigeration equipment circuits
• Manufacturing equipment and machinery
• Facility electrical distribution systems