MD63B800H - 800Amp Circuit Breaker

MD63B800H - 800Amp Circuit Breaker

With an 800-amp circuit breaker, the catalog number is only one piece of the puzzle—the electrical configuration and what's actually included matter just as much. The MD63B800H is an 800AF/800AT, 3-pole molded case circuit breaker with a 600V rating and an H-rated configuration. For existing or legacy electrical equipment requiring the MD63B800H configuration, this breaker can be considered a form, fit, and functional replacement candidate when the 800AF/800AT rating, three-pole configuration, 600V rating, H-rated requirement, connection requirements, and other application details match. Its solid construction is built to last when selected, installed, and maintained correctly.

Key Features and Benefits

• 800AF/800AT Configuration: The MD63B800H is identified as an 800 amp frame/800 amp trip breaker, giving technicians an important reference point for replacement matching.
• Three-Pole Design: The supplied product data specifies a 3-pole configuration.
• 600V Rating: Rated at 600V, which should be matched directly to the requirements of the existing electrical application.
• H-Rated Configuration: The manufacturer's description specifically identifies this model as H-rated, an important distinction when verifying the exact breaker required.
• No Lugs Included: There is no guesswork here—the supplied description specifically states "NO LUGS." You'll need to identify the required connection hardware separately for installation.
• Replacement-Focused Selection: The MD63B800H is most useful when its exact catalog number and electrical specifications match the existing equipment.

Technical Specifications

• Catalog Number: MD63B800H
  
• Article Number: US2\:MD63B800H
  
• Product Type: Molded Case Circuit Breaker
  
• Frame/Trip Rating: 800AF/800AT
  
• Amperes: 800A
  
• Poles: 3
  
• Voltage Rating: 600V
  
• Rating: H-rated
  
• Lugs: Not included
  
• Net Weight: 51.809 lbs.
  
• Commodity Code: 8536200020
  
• Country of Origin: United States of America
  

Material Compliance and Certifications

The supplied manufacturer information lists RoHS substance-restriction compliance as not available. REACH Article 33 information is referenced for the product, while a SCIP number is listed as not available. These entries are best preserved exactly as documented rather than interpreted as confirmation of compliance or noncompliance.

Where It Works Best

The MD63B800H is best evaluated for compatible existing or legacy electrical equipment that specifically requires an 800AF/800AT, 3-pole, 600V, H-rated circuit breaker configuration. In replacement work, it is especially important to distinguish this model from breakers that may share the same amperage but have different ratings, include connection hardware, or have different physical configurations.