LMD63B500 - 500Amp Circuit Breaker

LMD63B500 - 500Amp Circuit Breaker

If LMD63B500 is the number on the breaker you're trying to match, you've got several useful details to work with. This is a 500A, 3-pole molded case circuit breaker from the LMD6 family, rated for 600VAC and equipped with a thermal-magnetic trip unit. At 600V, the interrupting rating is 25 kAIC. At 480V, it's 50 kAIC. The breaker is specified for the standard 40°C rating and comes with TA3K500 load-side lugs, accepting 1/0 AWG through 500 kcmil copper or aluminum conductors. That's a fairly specific combination, which is exactly what you want when the job involves keeping existing electrical equipment in service.

Key Features and Benefits

• 500A rated current
• 3-pole molded case circuit breaker
• LMD6 family / LMD frame
• 600VAC rating
• Thermal-magnetic trip unit
• Standard 40°C breaker
• TA3K500 load-side lugs
• Accepts 1/0 AWG through 500 kcmil copper or aluminum conductors
• Defined electrical, lug, and dimensional specifications provide useful checkpoints when matching the breaker to existing equipment
• Meets UL 489 and IEC 60947-2 standards

Technical Specifications

• Catalog Number / MFN: LMD63B500
  
• Article Number: US2\:LMD63B500
  
• Product Type: Molded Case Circuit Breaker
  
• Product Family: LMD6, 25 kAIC, 600VAC
  
• Frame: LMD
  
• Amperage: 500A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Trip Unit: Thermal-Magnetic
  
• Temperature Rating: 40°C
  
• Interrupting Rating at 600V: 25 kAIC
  
• Interrupting Rating at 480V: 50 kAIC
  
• Load-Side Lugs: TA3K500
  
• Conductor Range: 1/0 AWG–500 kcmil
  
• Conductor Material: Copper or Aluminum
  
• Width: 7.5 in.
  
• Height: 16 in.
  
• Depth: 4.5 in.
  
• Dimensions: 7.5"W x 16"H x 4.5"D
  
• UPC: 783643254411
  
• Commodity Code: 85362090
  
• Country of Origin: Mexico
  
• Export Classification: EAR99 / AL\:N
  

Material Compliance and Certifications

The LMD63B500 is specified as meeting UL 489 and IEC 60947-2 standards.

Environmental information supplied for this exact catalog number includes WEEE (2012/19/EU) take-back obligations and REACH Article 33 information. A specific RoHS compliance status is not available, and the supplied manufacturer data does not include a SCIP number.

Those distinctions are intentional. No additional environmental or certification claims are being inferred from other LMD-series breakers.

Where It Works Best

The LMD63B500 500A circuit breaker makes sense when you're maintaining existing electrical distribution equipment that specifically calls for this three-pole LMD configuration. This isn't a case where matching the amperage and moving on tells you enough.