HFD3110 - 110Amp Circuit Breaker

HFD3110 - 110Amp Circuit Breaker

The Eaton HFD3110 circuit breaker is a 110 Amp, three-pole molded case breaker from Eaton’s Series C HFD line, built for your systems that already rely on this exact style of breaker. It’s most often used in replacement and maintenance work where the goal is simple: match the existing breaker’s form, fit, and electrical ratings so the system continues operating as designed.

Key Features and Benefits

• 110 Amp, three-pole molded case circuit breaker
• Eaton Series C HFD family design
• Complete F-frame breaker construction
• Rated for 600VAC and 250VDC applications
• T186 thermal-magnetic trip unit
• Overload and short-circuit protection in one design
• Load-side terminal configuration
• Commonly used for direct replacement in existing systems
• UL Listed for applicable installations
• Built for long-term use when properly applied within ratings

Technical Specifications

• Catalog Number: HFD3110
  
• Manufacturer: Eaton
  
• Product Type: Molded case circuit breaker
  
• Series: Series C
  
• Circuit Breaker Type: HFD
  
• Frame Type: Complete breaker (F-frame)
  
• Amperage Rating: 110 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 600VAC / 250VDC
  
• Trip Type: T186
  
• Trip Configuration: Thermal-magnetic
  
• Interrupt Rating: 100 kAIC at 240VAC / 65 kAIC at 480VAC
  
• Terminals: Load side
  
• UPC: 786679175507
  
• Height: 4.13 in
  
• Width: 4.13 in
  
• Depth: 3.38 in
  
• Weight: 4.25 lb
  

Material Compliance and Certifications

The Eaton HFD3110 is UL Listed and part of Eaton’s Series C molded case circuit breaker lineup. It is intended for use in systems that require a compatible HFD breaker with matching electrical ratings, frame size, and trip characteristics. Installation and servicing should always be handled by qualified electrical personnel following applicable electrical codes and safety practices.

Where It Works Best

• Existing Eaton Series C HFD breaker installations
• Replacement of an HFD3110 circuit breaker
• 110 Amp three-pole circuit protection
• Three-phase electrical distribution systems
• Commercial and industrial power equipment
• F-frame molded case breaker applications
• Systems requiring load-side terminal configuration
• Equipment operating within 600VAC or 250VDC ratings
• Maintenance work focused on matching existing breaker form, fit, and function