MXD63B800L - 800Amp Circuit Breaker

MXD63B800L - 800Amp Circuit Breaker

Need the right circuit breaker to keep an existing electrical system running as intended? The MXD63B800L 800 Amp Molded Case Circuit Breaker is designed for applications that require a specific combination of amperage, voltage ratings, and physical dimensions. As part of the MXD6 series, this 3-pole circuit breaker features a non-interchangeable trip unit and provides overcurrent and short-circuit protection for compatible electrical distribution equipment. It has an interrupting rating of 25kA at 600VAC, 50kA at 480VAC, and 65kA at 240VAC, giving maintenance professionals the information they need to match the breaker to their system's electrical requirements. There's also a 30kA rating at 250VDC for 2-pole applications. Built to last, its molded-case construction suits the demands of industrial and commercial electrical environments. Plus, with line-side and load-side lugs included, the MXD63B800L provides the connection components needed for compatible installations. Whether you're maintaining older electrical equipment or replacing an existing breaker, the right fit matters; this model offers the familiar MXD6 configuration, specified electrical ratings, and dimensions to help preserve the original system design.

Key Features and Benefits

• Handles applications requiring an 800A circuit breaker, making it a practical choice for compatible electrical distribution systems.
• Provides three-pole circuit protection for equipment designed around this configuration.
• MXD6 Breaker Type helps simplify identification when matching an existing circuit breaker to its original specifications.
• Offers 25 kAIC at 600 VAC, 50 kAIC at 480 VAC, and 65 kAIC at 240 VAC so you can match the breaker to the appropriate voltage and fault-current requirements.
• Also rated 30 kAIC at 250 VDC for 2-pole applications, where the specified configuration applies.
• Features a fixed trip unit configuration designed to maintain the specified protection characteristics.
• Comes with connection lugs on both sides, an important detail when checking installation requirements.
• The molded case design provides a durable enclosure for the breaker's internal components.
• At 16 inches high, 9 inches wide, and 6 inches deep, its measurements make it easier to check physical fit before installation.

Technical Specifications

• Part Number: MXD63B800L
  
• Product Type: Molded Case Circuit Breaker
  
• Breaker Type: MXD6
  
• Amperage: 800 Amps
  
• Number of Poles: 3
  
• Trip Unit: Non-Interchangeable
  
• A.I.C. Rating at 600VAC: 25kA
  
• A.I.C. Rating at 480VAC: 50kA
  
• A.I.C. Rating at 240VAC: 65kA
  
• DC Interrupting Rating: 30kAIC at 250VDC (2-Pole Applications)
  
• Dimensions:
  • Height: 16.0 inches
  • Width: 9.0 inches
  • Depth: 6.0 inches
• Connections: Line and Load-Side Lugs Included
  
• Construction: Molded Case
  

Material Compliance and Certifications

• When replacing a circuit breaker, matching the electrical specifications is only part of the job. It's also important to confirm the replacement meets the equipment and installation requirements.
• The MXD63B800L molded case circuit breaker features a non-interchangeable trip unit and defined AC and DC interrupting ratings. These ratings help determine whether the breaker is appropriate for a particular electrical system's available fault current and operating voltage.
• Specific UL, CSA, ANSI, and RoHS certifications have not been verified from the available product information. For installations requiring documented compliance, consult the manufacturer's technical documentation and the breaker identification label.

Where It Works Best

• If you're maintaining an established electrical system, you know it's important to find components that match the original equipment. The MXD63B800L 800A 3-pole circuit breaker is particularly relevant for applications where the MXD6 breaker type, physical dimensions, and electrical ratings are required.