ED43B050L - 50Amp Circuit Breaker

ED43B050L - 50 Amp Circuit Breaker

The ED43B050L circuit breaker is a dependable solution for protecting electrical distribution systems where consistent performance and safety are essential. Designed in the ED4 frame with a 50-amp rating and three poles, this Sentron-style molded case circuit breaker helps guard equipment and wiring from overloads and short circuits in commercial and industrial environments. Its high interrupting capacity—65k AIC at 240VAC and 18k AIC at 480VAC—supports reliable protection in demanding electrical systems. Built for practical installation, the ED43B050L includes line and load-side terminals and is suitable for reverse feed applications, offering flexibility during panel configuration or equipment upgrades. Rated for operation at 40°C and HACR applications, this breaker is commonly used in HVAC systems, motor protection, and distribution panels where dependable circuit interruption is critical. For maintenance professionals, contractors, and facility managers, it’s a straightforward choice when maintaining or upgrading compatible power distribution equipment.

Key Features and Benefits

• 50 Amp Continuous Rating – Designed to provide steady protection for medium-duty electrical loads.
• Three-Pole Configuration – Ideal for three-phase power systems commonly used in commercial and industrial facilities.
• High Interrupting Capacity – Rated 65k AIC at 240VAC and 18k AIC at 480VAC for dependable short-circuit protection.
• Sentron Style Molded Case Design – Known for consistent performance and compatibility with ED4 frame systems.
• HACR Rated – Suitable for heating, air-conditioning, and refrigeration equipment applications.
• Reverse Feed Capable – Allows flexibility in system design and installation orientation.
• Included Line and Load Terminals – Simplifies installation and ensures secure connections.
• 40°C Operating Rating – Built to handle typical electrical room and equipment enclosure temperatures.

Technical Specifications

• Part Number: ED43B050L
  
• Frame Type: ED4
  
• Amperage Rating: 50 Amps
  
• Number of Poles: 3
  
• Interrupting Rating:
  • 65k AIC @ 240VAC
  • 18k AIC @ 480VAC
• Operating Temperature Rating: 40°C
  
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Terminals: Line and load-side terminals included
  
• Reverse Feed: Suitable for reverse feed applications
  
• Approximate Ship Weight: 3.0 lbs
  
• Height: 6.35 inches
  

Material Compliance and Certifications

• Industry Standards: The ED43B050L molded case circuit breaker is manufactured to meet recognized electrical safety and performance standards commonly applied to industrial circuit protection equipment.
• HACR Rating: Its HACR rating confirms suitability for HVAC and refrigeration systems.
• Molded Case Construction: Molded case construction provides insulation and durability expected in modern power distribution components.
• UL and Industry Requirements: This type of breaker is designed to align with applicable UL and industry electrical safety requirements for molded case circuit breakers used in North American installations.
  

Where It Works Best

• The ED43B050L is frequently used in commercial buildings, industrial facilities, and electrical distribution panels where three-phase protection is required. It performs well in HVAC systems, motor control circuits, lighting distribution panels, and general power distribution equipment. Electricians and maintenance teams often rely on breakers in the ED4 frame when servicing existing panelboards or replacing protection devices in compatible systems that demand dependable circuit interruption and consistent operation.