HLXD63B400 - 400Amp Circuit Breaker

HLXD63B400 - 400Amp Circuit Breaker

Need an HLXD63B400 for your existing electrical system? This 400-Amp, 3-pole HLD6-A molded-case circuit breaker is intended for applications where the breaker's electrical ratings, physical dimensions, and configuration match the equipment already in service. Measuring approximately 7.50" wide x 11.00" long x 4.00" deep, the HLXD63B400 is a practical choice when maintaining compatible commercial or industrial equipment, including legacy electrical systems where matching the original breaker specifications is important.

Key Features and Benefits

• 400 Amp, 3-pole configuration for compatible electrical distribution equipment.
• HLD6-A type helps with accurate identification when replacing an existing breaker.
• Non-interchangeable trip unit provides the specified trip arrangement as part of the breaker.
• Load-side lugs are included, giving you the required load-side connection hardware.
• Compact, defined dimensions make it easier to compare the breaker with an existing installation before replacement.
• A sensible fit for maintenance and replacement jobs where keeping the original system configuration matters.
• Built to last when correctly applied, installed, and maintained within its specified ratings.
  

Technical Specifications

• Part Number: HLXD63B400
  
• Product Type: Molded Case Circuit Breaker
  
• Type: HLD6-A
  
• Amperage: 400 Amps
  
• Poles: 3
  
• A.I.C. Rating – 600VAC: 35kAIC
  
• A.I.C. Rating – 480VAC: 65kAIC
  
• A.I.C. Rating – 240VAC: 100kAIC
  
• DC Rating: 30kAIC at 250VDC for 2-pole applications
  
• Trip Unit: Non-interchangeable
  
• Lugs: Load-side lugs included
  
• Height / Length: 11.00 in.
  
• Width: 7.50 in.
  
• Depth: 4.00 in.
  
• Overall Dimensions: 7.50" W x 11.00" L x 4.00" D
  
• Approx. Shipping Weight: 18.00 lbs.
  

Material Compliance and Certifications

Material compliance and agency certification details were not included in the supplied specifications for the HLXD63B400, so no specific certification or listing should be assumed from the part number alone. When a project requires a specific listing, certification, or material compliance standard, confirm it with the applicable product labeling and manufacturer documentation.

Where It Works Best

The HLXD63B400 400 Amp circuit breaker is best suited to existing commercial and industrial electrical systems designed for its specific HLD6-A configuration. It can be particularly useful in legacy equipment, where maintaining the correct form, fit, and function is the priority.

Typical applications include existing distribution equipment requiring a 400A, 3-pole molded case circuit breaker, compatible HLD6-A installations, and systems operating within the breaker's stated voltage and interrupting ratings. Its known dimensions also make it easier to check physical fit before installation.