E43B050L - 50Amp Circuit Breaker

E43B050L - 50Amp Circuit Breaker

When maintaining an existing electrical system, using the correct replacement breaker helps keep everything operating as intended. The E43B050L 50 Amp 3-Pole Molded Case Circuit Breaker is designed for applications that require a compatible Type E43 breaker, providing the form, fit, and function needed for many commercial and industrial electrical distribution systems.

With a 50-amp rating and 3-pole configuration, the E43B050L is commonly used in three-phase power applications where reliable circuit protection is essential. It helps protect electrical circuits from overloads and short-circuit conditions while maintaining compatibility with equipment originally designed for this breaker type. Whether you're servicing a manufacturing facility, warehouse, commercial building, or mechanical system, matching the proper breaker specifications is an important part of maintaining safe and efficient operation.

Built to last and designed for operation in environments up to 40°C, the E43B050L remains a practical solution for facilities that depend on properly matched electrical components. When compatibility, ratings, and dependable circuit protection matter, this Type E43 molded case circuit breaker provides the specifications needed to support continued operation of existing electrical infrastructure.

Key Features and Benefits

• 50 Amp current rating for compatible electrical distribution systems
• 3-pole configuration for three-phase power applications
• Type E43 molded case circuit breaker
• Includes both line-side and load-side terminals
• HACR rated for qualifying HVAC and refrigeration equipment
• Interrupting capacity of 18kA at 480VAC and 25kA at 240VAC
• Helps protect circuits from overloads and short-circuit faults
• Designed for operation in ambient temperatures up to 40°C
• Form, fit, and functional replacement for compatible equipment
• Suitable for commercial and industrial electrical systems
• Molded case construction built to last

Technical Specifications

• Part Number: E43B050L
  
• Type: E43
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Amperage Rating: 50 Amps
  
• Poles: 3
  
• A.I.C. Rating: 18kA @ 480VAC; 25kA @ 240VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Included Terminals: Line-Side and Load-Side Terminals
  
• Width: 3.0 in.
  
• Height: 6.35 in.
  
• Depth: 3.92 in.
  
• Dimensions: 3.0"W × 6.35"H × 3.92"D
  
• Approximate Shipping Weight: 5.38 lbs.
  

Material Compliance and Certifications

• HACR Rated
• Designed for use in compatible electrical distribution equipment
• Intended for installation in accordance with applicable electrical codes and manufacturer requirements
• Suitable for operation within published voltage and interrupting capacity ratings

Where It Works Best

The E43B050L is commonly used in facilities that require a compatible 50 Amp Type E43 molded case circuit breaker for maintenance, repair, or replacement projects. Typical applications include:

• Commercial office buildings
• Industrial facilities
• Manufacturing plants
• HVAC and refrigeration systems
• Warehouses and distribution centers
• Educational and institutional facilities
• Electrical distribution panels and panelboards
• Mechanical equipment rooms
• Maintenance and retrofit projects involving compatible legacy equipment