ED43B110 - 110Amp Circuit Breaker

ED43B110 - 110 Amp Circuit Breaker

The ED43B110 circuit breaker is a 3-pole Sentron-style molded case breaker designed to deliver dependable overcurrent protection in commercial and industrial electrical distribution systems. Built on the ED4 frame, this 110-amp breaker is engineered to protect branch circuits and equipment from overloads and short circuits while maintaining stable system performance. With an interrupting capacity of 18kA at 480VAC and 65kA at 240VAC, the ED43B110 is well-suited for demanding electrical environments where consistent circuit protection is essential. Its bolt-on mounting design ensures a secure, vibration-resistant connection to compatible panelboards, and the breaker includes load-side terminals for straightforward installation. Rated for 40°C operation and HACR applications, this breaker is also suitable for reverse feed, making it a versatile choice for a variety of electrical configurations in modern power distribution systems.

Key Features and Benefits

• 110 Amp Rating – Designed to protect circuits carrying moderate to heavy electrical loads.
• 3-Pole Configuration – Provides simultaneous protection across three phases in commercial and industrial systems.
• High Interrupting Capacity – Rated 18kA at 480VAC and 65kA at 240VAC to handle fault conditions safely.
• Bolt-On Mounting – Creates a firm, reliable connection in compatible panelboards, helping reduce movement and electrical resistance.
• Sentron-Style Molded Case Design – Built for dependable performance and consistent circuit protection.
• HACR Rated – Suitable for heating, air conditioning, and refrigeration equipment circuits.
• Reverse Feed Capable – Allows installation flexibility in certain system configurations.
• Includes Load-Side Terminals – Simplifies wiring and installation during maintenance or panel upgrades.

Technical Specifications

• Part Number: ED43B110
  
• Frame Type: ED4
  
• Amperage Rating: 110 Amps
  
• Number of Poles: 3
  
• Interrupting Rating:
  • 18kA @ 480VAC
  • 65kA @ 240VAC
• Mounting Type: Bolt-On
  
• Temperature Rating: 40°C
  
• Breaker Style: Sentron Molded Case Circuit Breaker
  
• HACR Rated: Yes
  
• Reverse Feed: Suitable
  
• Included Terminals: Load-Side Terminals
  
• Approximate Ship Weight: 3 lbs
  
• Approximate Height: 6.35 in
  

Material Compliance and Certifications

• Industry Standards: The ED43B110 molded case circuit breaker is manufactured to meet commonly accepted electrical safety and performance standards for molded case circuit protection.
• Quality Construction: Components are built using high-quality insulating materials and conductive elements designed to maintain electrical integrity under normal operating conditions.
• UL Alignment: Products in this class are typically designed to align with industry expectations for UL-recognized circuit protection equipment and standard electrical distribution applications, helping ensure safe integration into commercial and industrial power systems.
  

Where It Works Best

• The ED43B110 is commonly used in commercial buildings, industrial facilities, and institutional power distribution systems where reliable three-phase circuit protection is required.
• It is particularly suitable for panelboards serving HVAC equipment, mechanical systems, lighting distribution, and general power circuits.
• Its bolt-on design makes it a practical option for maintenance replacements, panel upgrades, or expansion projects where a stable breaker connection and dependable fault protection are important.