KD3400F - 400Amp Max. *Frame Only*

KD3400F - 400Amp Max. *Frame Only*

When your molded case circuit breaker frame needs to be replaced, matching the original equipment is usually the most important part of the process. Electrical systems are often built around specific frame sizes, trip configurations, and ratings, so choosing the correct replacement component helps keep the installation consistent. The Eaton KD3400F Series C molded case circuit breaker frame is a 400 Amp, 3-pole frame-only breaker assembly designed for applications where the correct KD frame size, voltage rating, and system compatibility are required.

Key Features and Benefits

• Eaton Series C KD frame molded case circuit breaker frame
• 400 Amp frame rating
• Three-pole configuration
• Frame-only design for compatible trip unit selection
• Rated for 600VAC and 250VDC applications
• Part of the Eaton Series C KD breaker family
• Compatible with appropriate KD frame breaker components
• 35kAIC interrupt rating at 480VAC
• 65kAIC interrupt rating at 240VAC
• Helps maintain existing electrical equipment configuration
• Useful for replacement and maintenance applications
• Built to last in commercial and industrial environments
  

Technical Specifications

• Catalog Number: KD3400F
  
• Manufacturer: Eaton
  
• Product Type: Molded Case Circuit Breaker Frame
  
• Series: Series C
  
• Circuit Breaker Type: KD
  
• Frame Type: K
  
• Configuration: Frame Only
  
• Trip Type: T186
  
• Amperage Rating: 400 Amps
  
• Number of Poles: 3
  
• Voltage Rating: 600VAC, 250VDC
  
• Frequency Rating: 50 to 60 Hz
  
• Interrupt Rating:
  • 35kAIC at 480VAC
  • 65kAIC at 240VAC
• Dimensions: 4.10 in. D × 5.50 in. H × 5.50 in. W
  
• Approximate Weight: 9.65 lbs.
  

Material Compliance and Certifications

The Eaton KD3400F Series C molded case circuit breaker frame is UL Listed and intended for use with compatible Eaton electrical distribution equipment. Installation should follow the National Electrical Code (NEC), applicable local electrical requirements, and manufacturer guidelines. Assembly, inspection, and maintenance should be completed by qualified electrical personnel.

Where It Works Best

• Eaton Series C KD frame breaker applications
• Commercial electrical distribution systems
• Industrial facilities
• Manufacturing plants
• Power distribution assemblies
• Electrical control panels
• Existing Eaton KD frame installations
• Replacement and maintenance projects
• Applications requiring a 400 Amp, 3-pole molded case circuit breaker frame