HLMD63B800L - 800Amp Circuit Breaker

HLMD63B800L - 800Amp Circuit Breaker

When you’re replacing a circuit breaker in an existing electrical system, the details matter. The Siemens HLMD63B800L is an 800A, 3-pole SENTRON molded case circuit breaker built on the LMD frame and rated for 600 VAC. It uses a thermal-magnetic trip unit and carries an interrupting rating of 50 kAIC at 600V and 65 kAIC at 480V. This breaker also comes assembled with TA3K500 lugs on both the line and load sides, accepting copper or aluminum conductors from 1/0 AWG through 500 kcmil. Its physical dimensions are 7.5" wide × 16" high × 4.5" deep, an important detail when checking fit in existing equipment.

Key Features and Benefits

• 800A, 3-pole configuration for systems designed around this specific breaker rating.
• Rated for operation at up to 600 VAC.
• Thermal-magnetic trip unit provides the breaker’s specified overcurrent protection.
• Uses the Siemens LMD frame, an important consideration when matching an existing breaker installation.
• Includes TA3K500 line- and load-side lugs.
• Handles 1/0 AWG to 500 kcmil copper or aluminum wire.
• Meets UL 489 and IEC 60947-2 standards.
• Clearly defined dimensions make it easier to check physical fit before installation.
  

Technical Specifications

• Manufacturer: Siemens
  
• Catalog Number: HLMD63B800L
  
• Article Number: US2\:HLMD63B800L
  
• Series: SENTRON
  
• Product Family: HLMD6
  
• Breaker Type: Molded Case Circuit Breaker
  
• Frame: LMD
  
• Amp Rating: 800A
  
• Poles: 3
  
• Voltage Rating: 600 VAC
  
• Interrupting Rating at 600V: 50 kAIC
  
• Interrupting Rating at 480V: 65 kAIC
  
• Trip Type: Thermal-Magnetic
  
• Standard Temperature Rating: 40°C
  
• Line-Side Lugs: TA3K500
  
• Load-Side Lugs: TA3K500
  
• Wire Range: 1/0 AWG–500 kcmil
  
• Conductor Type: Copper or Aluminum (Cu/Al)
  
• Dimensions: 7.5" W × 16" H × 4.5" D
  
• Net Weight: 34.877 lb
  
• UPC: 783643404267
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

The HLMD63B800L circuit breaker meets UL 489 and IEC 60947-2 standards. Those standards are especially relevant when confirming whether a replacement breaker meets the requirements of a particular installation.

Where It Works Best

The Siemens HLMD63B800L is best suited for commercial and industrial electrical equipment designed for an 800A, 3-pole LMD-frame molded-case circuit breaker. It can be especially useful when maintaining existing or legacy equipment where changing the original electrical configuration isn’t the goal—the job is to find a breaker with the right form, fit, and function.