ED43B020L - 20Amp Circuit Breaker

ED43B020L - 20 Amp Circuit Breaker

The Siemens ED43B020L molded case circuit breaker is a dependable 3-pole protection device designed for commercial and industrial electrical distribution systems that require consistent circuit protection and reliable interruption performance. Built on the Sentron ED4 frame platform, this 20-amp circuit breaker provides strong short-circuit protection with an interrupting rating of 18kA at 480VAC and 65kA at 240VAC, helping safeguard electrical equipment from overloads and short circuits.

Engineered for durability and installation flexibility, the ED43B020L includes both line-side and load-side terminals and is suitable for reverse feed applications, making it a practical choice for a variety of panel configurations. Its HACR rating supports use with heating, air conditioning, and refrigeration equipment, while the 40°C ambient rating ensures dependable performance in standard operating environments. Whether used in panelboards, switchboards, or industrial distribution systems, this Sentron-style molded case breaker delivers consistent protection and straightforward installation for professionals who demand dependable electrical safety components.

Key Features and Benefits

• Reliable Circuit Protection – Protects electrical systems from overloads and short circuits with dependable trip performance.
• High Interrupting Capacity – Rated 18kA at 480VAC and 65kA at 240VAC to handle demanding fault conditions.
• 3-Pole Configuration – Ideal for three-phase electrical systems commonly used in commercial and industrial environments.
• HACR Rated – Approved for heating, air conditioning, and refrigeration equipment applications.
• Sentron ED4 Frame Design – Designed for compatibility with Siemens Sentron distribution systems.
• Flexible Installation – Includes line and load terminals and supports reverse feed applications.
• Consistent Performance – Built for operation in environments up to 40°C ambient temperature.

Technical Specifications

• Manufacturer Part Number: ED43B020L
  
• Amperage Rating: 20 Amps
  
• Number of Poles: 3
  
• Frame Type: ED4
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Breaker Type: Sentron Style Molded Case Circuit Breaker
  
• Ambient Temperature Rating: 40°C
  
• Terminal Type: Line and load-side terminals included
  
• Reverse Feed: Suitable for reverse feed applications
  
• Approximate Shipping Weight: 3.0 lbs
  
• Height: 6.35 inches
  

Material Compliance and Certifications

• Industry Standards: The ED43B020L circuit breaker is manufactured to meet applicable industry electrical standards for molded case circuit breakers.
• HACR Rating: Its HACR rating confirms suitability for HVAC-related equipment circuits, ensuring it meets recognized safety and operational requirements for heating and cooling applications commonly found in commercial electrical systems.

Where It Works Best

• The Siemens ED43B020L is commonly used in commercial panelboards and switchboards, industrial power distribution systems, HVAC and refrigeration equipment circuits, three-phase electrical installations, and electrical maintenance and system upgrades requiring a 20-amp 3-pole molded case breaker.