LD63B600 - 600Amp Circuit Breaker

LD63B600 - 600Amp Circuit Breaker

When you’re matching a breaker to existing equipment, the numbers need to line up. The LD63B600 is a 600A, 3-pole molded case circuit breaker with an LD frame and thermal-magnetic trip unit. For existing and legacy installations, the LD63B600 can serve as a form, fit, and functional replacement when its frame, ratings, dimensions, connections, and application requirements match. Properly selected, installed, and used within its specified ratings, it is built to last in its intended application.

Key Features and Benefits

• 600A, 3-pole configuration for applications requiring these specific electrical characteristics
• 600V rating
• Thermal-magnetic trip unit
• LD frame
• Standard 40°C breaker
• Includes TA2J6500 load-side lugs
• Accepts 3/0 AWG–500 kcmil copper conductors
• Accepts 4/0 AWG–500 kcmil aluminum conductors
• Well suited to replacement applications when all electrical and mechanical requirements match
  

Technical Specifications

• Catalog Number: LD63B600
  
• Article Number: US2:LD63B600
  
• Product Type: Molded Case Circuit Breaker (MCCB)
  
• Frame: LD
  
• Trip Type: Thermal-Magnetic
  
• Amperage: 600A
  
• Poles: 3
  
• Voltage Rating: 600V
  
• AIC at 600V: 25kA
  
• AIC at 480V: 35kA
  
• Temperature Rating: 40°C
  
• Load-Side Lugs: TA2J6500, included
  
• Copper Conductor Range: 3/0 AWG–500 kcmil
  
• Aluminum Conductor Range: 4/0 AWG–500 kcmil
  
• Dimensions: 7.5"W x 11"H x 4"D
  
• Net Weight: 20.247 lb
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489
• IEC 60947-2
  

Where It Works Best

The LD63B600 is a good fit for maintenance and replacement work involving equipment that requires a 600A, 3-pole LD-frame breaker with matching electrical and physical characteristics. This is especially useful in existing or legacy installations where keeping the correct form, fit, and function matters more than simply finding a breaker with the same amp rating.