HLXD63B350L - 350Amp Circuit Breaker

HLXD63B350L - 350Amp Circuit Breaker

When you're replacing a breaker in an existing electrical system, the details matter. The HLXD63B350L is a 350-amp, 3-pole molded-case circuit breaker for applications using the HLD6-A type.

Fit is another piece of the puzzle. This breaker measures approximately 7.50 inches wide by 11.00 inches high by 4.00 inches deep and has an approximate shipping weight of 18 pounds. In older switchgear and distribution equipment, even a small dimensional difference can matter, so checking the complete part number and physical size before installation is worthwhile.

Key Features and Benefits

• 350 Amp, 3-pole molded case circuit breaker
• HLD6-A type
• Designed for compatible replacement and maintenance applications
• Non-interchangeable trip unit
• Includes line-side and load-side lugs
• Clearly defined dimensions help with form-and-fit verification
• Built to last when correctly applied and maintained
  

Technical Specifications

• Part Number: HLXD63B350L
  
• Product Type: Molded Case Circuit Breaker
  
• Type: HLD6-A
  
• Amperage: 350 Amps
  
• Poles: 3
  
• Maximum AC Voltage: 600VAC
  
• A.I.C. Rating at 600VAC: 35kA
  
• A.I.C. Rating at 480VAC: 65kA
  
• A.I.C. Rating at 240VAC: 100kA
  
• DC Rating: 30kAIC at 250VDC for 2-pole applications
  
• Trip Unit: Non-interchangeable
  
• Lugs: Line-side and load-side lugs included
  
• Height: 11.00 in.
  
• Width: 7.50 in.
  
• Depth: 4.00 in.
  
• Dimensions: 7.50" W x 11.00" H x 4.00" D
  
• Approximate Shipping Weight: 18.00 lbs.
  

Material Compliance and Certifications

Specific material compliance and certification information was not included in the supplied specifications for the HLXD63B350L, so I wouldn't make claims unsupported by the available product data. Applicable approvals, certifications, and compliance requirements should be verified using the breaker labeling and relevant manufacturer documentation.

Where It Works Best

The HLXD63B350L is best suited to existing commercial and industrial electrical systems that require a 350-amp, 3-pole HLD6-A molded-case circuit breaker with this specific combination of dimensions and electrical ratings.

Typical applications include:

• Maintenance of existing commercial or industrial distribution equipment
• Systems requiring an HLD6-A type breaker
• 350A, 3-pole applications
• Systems operating up to 600VAC, within the specified interrupting rating
• 480VAC systems requiring up to 65kAIC
• 240VAC systems requiring up to 100kAIC
• Applicable 250VDC 2-pole applications requiring 30kAIC
• Installations requiring line-side and load-side lugs
• Legacy equipment where matching the existing breaker's form, fit, and function is the priority