ED42B125L - 125Amp Circuit Braker

ED42B125L - 125 Amp Circuit Braker

The ED42B125L Sentron molded case circuit breaker provides reliable circuit protection for electrical distribution systems that require a 125 amp, 2-pole breaker with strong fault interruption capability. Built on the ED4 frame, this breaker is designed to help protect equipment and wiring from overloads and short circuits in both commercial and industrial environments. With an interrupting capacity of 18kA at 480VAC and 65kA at 240VAC, it is suitable for systems where higher available fault current may be present.

This breaker is HACR rated, making it a practical choice for heating, air-conditioning, and refrigeration equipment circuits. It is designed for operation at 40°C ambient temperature, supporting stable performance in typical electrical rooms and equipment areas. The ED42B125L includes both line- and load-side terminals, helping simplify installation and reducing the need for additional accessories. It is also suitable for reverse feed applications, providing flexibility when configuring or upgrading panelboards and distribution equipment.

Because it follows the widely used Sentron style molded case design, this breaker fits well into many commercial power distribution systems where dependable protection and straightforward installation are important.

Key Features and Benefits

• 125 Amp Rating – Designed to protect circuits carrying up to 125 amps.
• 2-Pole Configuration – Suitable for protecting two conductors in distribution systems.
• High Interrupting Capacity – Rated 18kA at 480VAC and 65kA at 240VAC for reliable fault clearing.
• HACR Rated – Approved for HVAC, refrigeration, and air-conditioning equipment circuits.
• Reverse Feed Capable – Allows flexible installation in a variety of panel configurations.
• Included Terminals – Line and load-side terminals are included to simplify installation.
• Sentron Style Construction – Designed for dependable performance in commercial and industrial systems.

Technical Specifications

• Part Number: ED42B125L
  
• Amperage: 125A
  
• Poles: 2
  
• 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 Included
  
• Reverse Feed: Suitable for Reverse Feed
  
• Approximate Height: 6.35 in
  
• Shipping Weight: 2.0 lbs
  

Material Compliance and Certifications

• Industry Standards: The ED42B125L is manufactured to meet industry standards for molded case circuit breakers used in commercial and industrial power distribution systems.
• HACR Rating: Its HACR rating confirms suitability for heating, air-conditioning, and refrigeration equipment installations where compliant circuit protection is required.

Where It Works Best

• The ED42B125L 2-pole 125A circuit breaker is commonly installed in commercial electrical panels, industrial distribution equipment, HVAC systems, and facility power systems. It is well-suited for applications operating at 240VAC or 480VAC where dependable overload and short-circuit protection is needed for equipment, branch circuits, or panelboard distribution.