E43B050 - 50Amp Circuit Breaker

E43B050 - 50Amp Circuit Breaker

When maintaining or repairing an existing electrical system, finding the right circuit breaker is essential. The E43B050 50 Amp 3-Pole Molded Case Circuit Breaker is designed to provide the form, fit, and function needed for compatible electrical distribution equipment while helping protect circuits from overloads and short circuits.

With a 50-amp rating, 3-pole configuration, and bolt-on design, this Type E43 breaker is well suited for a wide range of commercial and industrial applications. Its compact footprint allows it to fit where compatible E43 breakers are required, making it a practical choice for facility maintenance teams, electrical contractors, and industrial operations focused on keeping existing systems running efficiently.

Whether you're servicing a manufacturing facility, commercial building, warehouse, or mechanical room, the E43B050 delivers the ratings and configuration needed for a dependable replacement solution. Built to last and engineered for use in compatible legacy systems, it helps support continued operation without requiring changes to existing equipment layouts.

Key Features and Benefits

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

Technical Specifications

• Part Number: E43B050
  
• Type: E43
  
• Circuit Breaker Type: Molded Case Circuit Breaker
  
• Amperage Rating: 50 Amps
  
• Poles: 3
  
• Mounting Style: Bolt-On
  
• A.I.C. Rating: 18kA @ 480VAC; 25kA @ 240VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Included Terminals: 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 E43B050 is commonly used in commercial and industrial environments requiring a compatible Type E43 molded case circuit breaker for maintenance, repair, or replacement applications. Typical uses include:

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

For electrical professionals servicing existing systems, the E43B050 provides the amperage rating, interrupting capacity, pole configuration, and bolt-on mounting design needed to support the continued operation of compatible equipment.