ND63B800L - 800Amp Circuit Breaker

ND63B800L - 800Amp Circuit Breaker

Finding the right breaker for existing equipment usually comes down to the details. The ND63B800L is a Type ND6 molded case circuit breaker rated at 800 amps with a 3-pole configuration. It has an interchangeable trip unit and includes both line- and load-side lugs.

For AC applications, the ND63B800L is rated 25 kA at 600VAC, 50 kA at 480VAC, and 65 kA at 240VAC. A 30kAIC at 250VDC rating applies to 2-pole applications. The breaker measures approximately 16 inches high, 9 inches wide, and 6 inches deep.

If you’re maintaining older electrical equipment, those specifications are worth checking carefully. Matching the ND6 type, amperage, poles, dimensions, interrupting rating, trip unit, and lug arrangement can be just as important as matching the part number itself. The ND63B800L is built for its intended application and built to last when correctly installed and used within its specified ratings.

Key Features and Benefits

• 800-amp rating for equipment requiring an 800A breaker
• 3-pole configuration
• Type ND6 molded case circuit breaker
• Interchangeable trip unit
• 25kA interrupting rating at 600VAC
• 50kA interrupting rating at 480VAC
• 65kA interrupting rating at 240VAC
• 30kAIC at 250VDC for 2-pole applications
• Line- and load-side lugs included
• Suitable for form, fit, and functional replacement where these specifications are required
  

Technical Specifications

• Part Number: ND63B800L
  
• Type: ND6
  
• Breaker Type: Molded Case Circuit Breaker
  
• Amperage: 800 A
  
• Poles: 3
  
• AIC @ 600VAC: 25kA
  
• AIC @ 480VAC: 50kA
  
• AIC @ 240VAC: 65kA
  
• DC Rating: 30kAIC @ 250VDC for 2-pole applications
  
• Trip Unit: Interchangeable
  
• Lugs: Line and load side included
  
• Height: 16.0 in.
  
• Width: 9.0 in.
  
• Depth: 6.0 in.
  

Material Compliance and Certifications

• The available product specifications did not include material compliance, agency certifications, listing details, or certification numbers, so I would not add claims about UL, CSA, RoHS, or other certifications without supporting documentation.
• For applications that require a particular certification or compliance standard, check the breaker label and supporting documentation before installation.
  

Where It Works Best

• The ND63B800L 800-amp circuit breaker is a good fit for maintenance and replacement work involving legacy electrical systems that specifically require the ND6 configuration and matching electrical ratings.
• It’s particularly relevant when the existing installation calls for a 3-pole, 800A molded case circuit breaker with an interchangeable trip unit. Before using it as a replacement, compare the part number and physical dimensions along with the amperage, poles, voltage, AIC ratings, trip unit, and lug configuration. Qualified electrical personnel should verify the final application and installation.