LAP36250MB - 250 Amp Circuit Breaker

LAP36250MB - 250 Amp Circuit Breaker

When you're replacing a breaker in existing equipment, a small physical difference can matter as much as the amp rating. The LAP36250MB is a 250A, 3-pole LA molded case circuit breaker rated for 600VAC, with an interrupting rating of 22kA at 600VAC. The MB version stands out for its shortened handle, designed to give the panel door the clearance it needs to close properly after installation. If you're matching an existing LAP36250MB, check the handle style, mounting, connections, dimensions, and electrical ratings together.

Key Features and Benefits

• 250A, 3-pole configuration for equipment requiring this specific LA breaker arrangement
• Rated for 600VAC
• Provides thermal overload and magnetic short-circuit protection
• MB shortened handle helps provide proper clearance for the panel door
• Push-to-Trip allows manual tripping without exposure to live parts
• Unit-mount construction
• Short-lever operator
• Load-side lugs with a line-side terminal connection
• AL400LA terminal identifier
  

Technical Specifications

• Catalog Number: LAP36250MB
  
• Product Type: Molded Case Circuit Breaker
  
• Series / Type: LA
  
• Rated Current: 250A
  
• Poles: 3
  
• Wiring Configuration: 3-wire
  
• Voltage Rating: 600VAC
  
• Interrupting Rating: 22kA at 600VAC
  
• Protection: Thermal overload and magnetic short-circuit
  
• Breaking Capacity Code: A
  
• Magnetic Hold Current: 1,250A
  
• Magnetic Tripping Current: 2,500A
  
• Mounting: Unit mount
  
• Operator: Short lever
  
• Handle Configuration: Shortened handle (MB suffix)
  
• Load Connection: Lugs
  
• Line Connection: Terminal
  
• Terminal Identifier: AL400LA
  
• Tightening Torque: 115.06 lbf-in (13 N·m)
  
• Specified Conductor Ranges: 1 AWG–600 kcmil and 1 AWG–250 kcmil, as applicable
  
• Dimensions: 11 in. H × 6 in. W × 5.84 in. D
  
• Application: HACR rated
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL 489 / UL Listed
• CSA certified
• IEC certified
  

Where It Works Best

The LAP36250MB makes the most sense when you're working with existing or legacy equipment that calls for its particular combination of 250A, three poles, 600VAC, 22kA at 600VAC, and unit mounting.

Pay particular attention to the MB short handle. It isn't just a naming detail—the shortened handle lets the panel door close properly with the breaker installed. That makes handle configuration an important part of matching this model to an existing installation.