LMD63B800 - 800Amp Circuit Breaker

LMD63B800 - 800Amp Circuit Breaker

Looking to replace an LMD63B800? The 800A rating is easy to spot, but that's only one part of the match. This is a 3-pole LMD-frame molded-case circuit breaker rated 600VAC, with a thermal-magnetic trip unit. It's a standard 40°C breaker. At 600V, the interrupting rating is 25 kAIC. At 480V, the listed rating is 50 kAIC. That's already a much more useful description than simply “800 amp breaker.”

Key Features and Benefits

• 800A, 3-pole configuration
• LMD6 family / LMD frame
• Rated 600VAC
• Thermal-magnetic trip unit
• Standard 40°C specification
• TA3K500 lugs on the load sides
• Wire range of 1/0 AWG–500 kcmil
• Accepts copper or aluminum conductors
• Multiple identification points make it easier to check compatibility with existing equipment

Technical Specifications

• Catalog Number: LMD63B800
  
• Article Number: US2\:LMD63B800
  
• Product Family: LMD6
  
• Product Type: Molded Case Circuit Breaker
  
• Frame: LMD
  
• Amperage: 800A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Trip: Thermal-Magnetic
  
• Temperature Specification: 40°C
  
• Interrupting Rating at 600V: 25 kAIC
  
• Interrupting Rating at 480V: 50 kAIC
  
• Load-Side Lug: TA3K500
  
• Conductor Range: 1/0 AWG–500 kcmil
  
• Conductor Material: Copper or Aluminum
  
• Dimensions: 7.5"W x 16"H x 4.5"D
  
• UPC: 783643254442
  
• Commodity Code: 8536200020
  
• Country of Origin: Mexico
  
• Export Classification: EAR99 / AL\:N
  

Material Compliance and Certifications

For this catalog number, the manufacturer states that the LMD63B800 meets UL 489 and IEC 60947-2 standards.

That's what is documented for the LMD63B800. No extra certification language has been added based on similar-looking LMD catalog numbers.

Where It Works Best

If you're maintaining existing or legacy electrical equipment and LMD63B800 is the breaker you're trying to match, work through the actual specs instead of stopping at 800 amps.