E43B020L - 20Amp Circuit Breaker

E43B020L - 20Amp Circuit Breaker

The E43B020L molded case circuit breaker is designed for use in electrical distribution systems that require dependable overcurrent protection and compatibility with equipment built around the E43 frame platform. Rated at 20 amperes with a 3-pole configuration, this breaker is commonly used in commercial and industrial panelboards, switchboards, and distribution assemblies operating at 240VAC or 480VAC. With an interrupting capacity of 18kA at 480VAC and 25kA at 240VAC, the E43B020L helps protect circuits and connected equipment by interrupting overloads and short circuits within its rated limits.

This HACR-rated molded case circuit breaker is suitable for heating, air-conditioning, and refrigeration equipment applications where permitted by code. Built for long service life and rated for operation at 40°C, the unit includes line- and load-side terminals for straightforward installation in compatible legacy systems. Its design supports form, fit, and functional replacement where an E43 frame breaker with the same electrical ratings is required. For maintenance teams and facility operators maintaining existing infrastructure, the E43B020L provides a practical solution that maintains the intended protection characteristics of the original system.

Key Features and Benefits

• 20 Amp continuous current rating: 20 Amp continuous current rating for branch circuit protection in compatible systems
• 3-pole configuration: 3-pole configuration designed for three-phase electrical distribution
• Interrupting capacity: Interrupting capacity: 18kA at 480VAC and 25kA at 240VAC
• E43 frame compatibility: E43 frame compatibility for proper form, fit, and function within matching equipment
• HACR rated: HACR rated, suitable for heating, air-conditioning, and refrigeration equipment applications where permitted
• Line and load terminals: Includes line and load terminals to support installation in existing assemblies
• 40°C operating rating: 40°C operating rating, consistent with common electrical equipment environments
• Molded case construction: Molded case construction designed for dependable circuit protection over time
  

Technical Specifications

• Part Number: E43B020L
  
• Product Type: Molded Case Circuit Breaker
  
• Amperage Rating: 20 Amps
  
• Poles: 3
  
• Frame Type: E43
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 25kA @ 240VAC
• Voltage Rating: Up to 480VAC
  
• Temperature Rating: 40°C
  
• HACR Rated: Yes
  
• Terminals: Line and Load Side Included
  
• Approximate Shipping Height: 6.35 in
  
• Approximate Shipping Weight: 3.0 lbs
  

Material Compliance and Certifications

• Electrical Equipment Standards: The E43B020L molded case circuit breaker is manufactured to meet applicable electrical equipment standards associated with molded case circuit breakers used in North American power distribution systems.
• HACR Classification: HACR classification supports use in heating, air-conditioning, and refrigeration equipment installations where code requirements allow. Always verify installation requirements and compliance with local electrical codes and system specifications before use.
  

Where It Works Best

• Commercial buildings and office facilities
  
• Industrial control panels and machinery distribution systems
• HVAC and refrigeration electrical circuits
• Panelboards and switchboards requiring a 20A, 3-pole breaker
• Maintenance and replacement needs in established electrical infrastructure
• Its ratings and physical configuration make it suitable when maintaining or servicing systems that require the same frame size, amperage, and interrupting capacity to keep equipment operating as originally designed.