ED42B050L - 50Amp Circuit Breaker

ED42B050L - 50 Amp Circuit Breaker

The ED42B050L molded case circuit breaker is engineered to provide dependable circuit protection for commercial and industrial electrical systems where consistent performance and safety are essential. Built on the ED4 frame platform, this 50-amp, 2-pole breaker is designed to interrupt overloads and short circuits quickly, helping protect electrical equipment, conductors, and distribution systems from damage. With an interrupting capacity of 18kA at 480VAC and 65kA at 240VAC, the ED42B050L delivers the fault-clearing capability required for demanding electrical environments. Its Sentron-style construction, HACR rating, and 40°C calibration make it suitable for a wide range of applications, including HVAC systems and commercial power distribution. For installation flexibility, the breaker includes line and load-side terminals and is suitable for reverse feed applications, making it a practical choice for both new installations and replacement projects in compatible panelboards and switchgear.

Key Features and Benefits

• Reliable Overcurrent Protection: Designed to detect and interrupt overloads and short circuits to help safeguard electrical systems and connected equipment.
• 50 Amp, 2-Pole Configuration: Ideal for protecting two-phase circuits in commercial and light industrial applications.
• High Interrupting Capacity: Rated 18kA at 480VAC and 65kA at 240VAC for dependable fault interruption in higher-demand electrical systems.
• Sentron Style Molded Case Design: Known for dependable operation and compatibility with a wide range of distribution equipment.
• HACR Rated: Suitable for heating, air conditioning, and refrigeration equipment applications.
• Reverse Feed Capable: Allows additional installation flexibility when system layout requires alternative line/load orientation.
• Included Terminals: Comes with both line-side and load-side terminals for straightforward installation.
  

Technical Specifications

• Part Number: ED42B050L
  
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Frame Type: ED4
  
• Poles: 2
  
• Current Rating: 50 Amps
  
• Interrupting Capacity:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Operating Temperature Calibration: 40°C
  
• HACR Rated: Yes
  
• Reverse Feed: Suitable
  
• Terminals: Line and Load Side Included
  
• Shipping Weight: 2.0 lbs
  
• Approximate Height: 6.35 inches
  

Material Compliance and Certifications

• Industry Standards: The ED42B050L circuit breaker is manufactured to meet recognized electrical safety and performance standards typically required for molded case circuit breakers used in commercial and industrial power distribution systems.
• Safety and Performance: These standards help ensure consistent operation, safe interruption of fault currents, and compatibility with approved electrical installations when installed according to applicable codes and manufacturer guidelines.
  

Where It Works Best

• The ED42B050L is well-suited for commercial buildings, industrial facilities, and HVAC-related electrical systems that require dependable branch circuit protection.
• It is commonly used in panelboards, switchboards, and distribution systems where a 50-amp, two-pole breaker with high interrupting capacity is required.
• Because it is HACR rated and reverse-feed capable, it works particularly well in mechanical equipment circuits, motor loads, and refrigeration systems, as well as general power distribution applications where consistent protection and flexible installation are important.