ED43B020 - 20Amp Circuit Breaker

ED43B020 - 20 Amp Circuit Breaker

The ED43B020 molded case circuit breaker is designed to deliver dependable circuit protection for commercial and industrial electrical distribution systems. Built on the ED4 frame platform, this 3-pole, 20-amp breaker helps safeguard electrical equipment and wiring from overloads and short circuits while maintaining consistent performance in demanding environments. With interrupting ratings of 18kA at 480VAC and 65kA at 240VAC, the ED43B020 offers strong fault-clearing capability suitable for many panelboard and switchboard applications. Its bolt-on mounting design provides a secure electrical connection, helping reduce vibration-related loosening and improving long-term reliability. This Sentron-style molded case circuit breaker is also HACR rated, making it appropriate for heating, air-conditioning, and refrigeration equipment circuits. Designed for operation in 40°C ambient conditions, the unit includes load-side terminals and is suitable for reverse feed applications, giving electricians and facility managers greater flexibility when configuring or maintaining electrical systems. Whether used for protecting branch circuits or critical equipment loads, the ED43B020 provides reliable overcurrent protection in a compact, efficient form factor.

Key Features and Benefits

• 20 Amp continuous rating: to protect branch circuits and connected equipment
• 3-pole configuration: for reliable protection in three-phase electrical systems
• High interrupting capacity: rated 18kA at 480VAC and 65kA at 240VAC to safely clear fault conditions
• Bolt-on mounting design: provides a firm, stable connection in compatible panelboards
• Sentron style molded case construction: designed for dependable overcurrent protection
• HACR rated: for heating, air conditioning, and refrigeration equipment circuits
• Includes load-side terminals: for easier installation and secure wiring connections
• Suitable for reverse feed applications: when system configuration requires it
• Designed to operate effectively: in 40°C ambient environments
  

Technical Specifications

• Part Number: ED43B020
  
• Frame Type: ED4
  
• Amperage Rating: 20 Amps
  
• Number of Poles: 3
  
• Voltage / Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Mounting Type: Bolt-On
  
• Operating Temperature Reference: 40°C
  
• HACR Rating: Yes
  
• Terminal Type: Includes load-side terminals
  
• Reverse Feed: Suitable
  

Shipping Dimensions / Weight

• Height: 6.35 in
• Weight: 3.0 lbs
  

Material Compliance and Certifications

• Industry Standards: The ED43B020 circuit breaker is manufactured to meet widely accepted electrical safety and performance standards for molded case circuit breakers used in commercial and industrial power distribution.
• Compliance Guidance: Units are designed for compliance with applicable UL and industry performance requirements for overcurrent protection equipment when installed in compatible systems. Always follow local electrical codes and manufacturer guidelines during installation.
  

Where It Works Best

• The ED43B020 3-pole breaker is commonly used in electrical distribution systems where dependable overcurrent protection is required for three-phase circuits. Typical applications include:
• Commercial panelboards and distribution panels
• HVAC and refrigeration equipment requiring HACR-rated protection
• Industrial machinery circuits and motor loads
• Facility electrical upgrades and maintenance projects
• Branch circuit protection in office buildings, retail spaces, and light industrial environments