LAP36400MB - 400 Amp Circuit Breaker

LAP36400MB - 400 Amp Circuit Breaker

The LAP36400MB is a 400A, 3-pole LA molded case circuit breaker with a short-lever operator and unit-mount configuration. If you're replacing a breaker in existing equipment, check the short handle closely. So are the mounting arrangement, connections, physical size, and interrupting ratings. Matching amperage alone doesn't ensure compatibility.

Key Features and Benefits

• 400A rated current
• 3-pole, 3-wire configuration
• 2,000A magnetic hold current
• 4,000A magnetic tripping current
• Short-lever operator, an important fit detail for replacement applications
• Unit-mount configuration
• Load-side lugs and line-side terminal
• AL400LA terminal identifier
• Push-to-Trip allows the breaker to be manually tripped without exposure to live parts
  

Technical Specifications

• Catalog Number: LAP36400MB
  
• Product Type: Circuit breaker
  
• Series / Type: LA
  
• Rated Current: 400A
  
• Poles: 3
  
• Wiring Configuration: 3-wire
  
• AC Rating: 600VAC / 22kA
  
• DC Rating: 250VDC / 10kA
  
• Breaking Capacity Code: A
  
• Magnetic Hold Current: 2,000A
  
• Magnetic Tripping Current: 4,000A
  
• Mounting: Unit mount
  
• Operator: Short lever
  
• Load Connection: Lugs
  
• Line Connection: Terminal
  
• Terminal Identifier: AL400LA
  
• Height: 11 in. (279.4 mm)
  
• Width: 6 in. (152.4 mm)
  
• Depth: 5.84 in. (148.34 mm)
  
• Application: HACR-rated
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL Listed
• CSA
• IEC
• HACR-rated
  

Where It Works Best

The LAP36400MB makes the most sense when you're maintaining equipment that specifically calls for a 400A, 3-pole LA breaker with this electrical and physical configuration. This is especially relevant for existing and legacy installations where matching the original form, fit, and function matters.