HLXD63B450 - 450Amp Circuit Breaker

HLXD63B450 - 450Amp Circuit Breaker

When you're replacing a circuit breaker in existing equipment, getting the details right matters. The HLXD63B450 is a 450-amp, 3-pole HLD6-A molded-case circuit breaker with a non-interchangeable trip unit and load-side lugs. Measuring approximately 7.50 inches wide, 11.00 inches long, and 4.00 inches deep, this breaker is well-suited for compatible commercial and industrial equipment, particularly when maintaining legacy systems where the correct form, fit, and function are important.

Key Features and Benefits

• 450 Amp, 3-pole configuration for compatible commercial and industrial electrical applications.
• HLD6-A type helps identify the proper breaker configuration when replacing existing equipment.
• Non-interchangeable trip unit provides the specified trip configuration for this breaker.
• Load-side lugs are included, an important detail when matching the breaker to an existing installation.
• At 7.50" W x 11.00" L x 4.00" D, its physical dimensions can be checked directly against the breaker being replaced.
• A good fit for legacy electrical systems that specifically require the HLXD63B450's ratings and configuration.
• Built to last for its intended electrical application when correctly selected and installed.
  

Technical Specifications

• Part Number: HLXD63B450
  
• Breaker Type: Molded Case Circuit Breaker
  
• Type / Series: HLD6-A
  
• Amperage: 450 Amps
  
• Poles: 3
  
• A.I.C. at 600VAC: 35kAIC
  
• A.I.C. at 480VAC: 65kAIC
  
• A.I.C. at 240VAC: 100kAIC
  
• DC Rating: 430kAIC at 250VDC (for 2-pole applications)
  
• Trip Unit: Non-Interchangeable
  
• Lugs: Load-Side Lugs Included
  
• Width: 7.50 in.
  
• Height / Length: 11.00 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

Specific material-compliance information and certification details were not included in the supplied specifications for the HLXD63B450. Because requirements can vary by installation, don't assume UL, CSA, RoHS, REACH, or other certifications unless they are confirmed by the applicable product markings or supporting manufacturer documentation.

For code-regulated applications, the breaker's markings and documentation should be checked against the requirements of the equipment and installation.

Where It Works Best

The HLXD63B450 450 Amp circuit breaker makes the most sense in existing commercial or industrial electrical equipment that specifically calls for an HLD6-A, 3-pole breaker with a 450 Amp rating. It's particularly relevant to legacy-system maintenance, where the goal is to replace the existing breaker with the correct form, fit, and functional configuration.

With its defined HLD6-A configuration, non-interchangeable trip unit, and included load-side lugs, the HLXD63B450 gives maintenance teams and electrical professionals a clearly specified option for applications requiring these exact characteristics.