ED42B045 - 45Amp Circuit Breaker

ED42B045 - 45 Amp Circuit Breaker

The ED42B045 Sentron Molded Case Circuit Breaker is engineered to provide dependable circuit protection in commercial and industrial electrical distribution systems. Designed with a 2-pole configuration and a 45-amp rating, this breaker helps protect electrical equipment and wiring from overloads and short circuits while maintaining stable power distribution. Built on the ED4 frame platform, the ED42B045 features a bolt-on mounting style that allows for secure installation in compatible panelboards and switchboards. Its high interrupting capacity—up to 18kA at 480VAC and 65kA at 240VAC—makes it suitable for demanding applications where reliable fault protection is essential. The breaker is HACR rated, supports reverse feed applications, and includes load-side terminals for convenient installation. Designed to perform in environments up to 40°C, this Sentron-style molded case breaker offers dependable operation and consistent protection for a wide range of electrical systems.

Key Features and Benefits

• 45 Amp Protection: Helps safeguard circuits and connected equipment from overloads and short circuits.
• 2-Pole Design: Suitable for two-phase electrical systems requiring coordinated protection.
• High Interrupting Capacity: Rated 18kA at 480VAC and 65kA at 240VAC to help handle high fault current levels.
• Bolt-On Mounting: Provides a secure, stable connection in compatible panelboards.
• Sentron Style Molded Case Construction: Built for dependable performance in commercial and industrial environments.
• HACR Rated: Approved for use with heating, air conditioning, and refrigeration equipment.
• Reverse Feed Capable: Flexible installation options for various system configurations.
• Includes Load-Side Terminals: Simplifies installation and wiring.

Technical Specifications

• Part Number: ED42B045
  
• Frame Type: ED4
  
• Amperage Rating: 45 Amps
  
• Number of Poles: 2
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Mounting Type: Bolt-On
  
• Operating Temperature Rating: 40°C
  
• Weight: Approximately 2.0 lbs
  
• Height: 6.35 inches
  
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Included Accessories: Load-side terminals
  
• Special Features: Suitable for reverse feed applications; HACR rated
  

Material Compliance and Certifications

• Industry Standards: This molded case circuit breaker is manufactured to meet established electrical safety and performance standards commonly required for commercial and industrial power distribution equipment.
• HACR Certification: HACR certification confirms suitability for HVAC and refrigeration applications, while molded case construction supports dependable operation under normal service conditions in accordance with applicable electrical codes and industry guidelines.
  

Where It Works Best

• The ED42B045 45-amp circuit breaker is commonly used in commercial buildings, industrial facilities, and electrical distribution systems where reliable branch circuit protection is required. It is particularly well-suited for panelboards and switchboards supporting HVAC equipment, motor loads, lighting circuits, and general power distribution. With its high interrupting capacity and secure bolt-on design, this breaker performs well in environments where dependable fault protection and stable electrical performance are essential.