LAL3640036M - 400 Amp Motor Circuit Protector

LAL3640036M - 400 Amp Motor Circuit Protector

If you're matching a motor circuit protector in an existing LA installation, the LAL3640036M gives you several concrete specifications to work from. It's a 400A, 3-pole motor circuit protector rated for 600VAC, with a unit-mount design and lugs on both the line and load sides. The manufacturer describes this LA Mag-Gard device as magnetic-only, providing short-circuit protection and serving as a disconnect when used with a motor starter. When the electrical characteristics, protection scheme, connections, mounting, and dimensions all match—and the protector is properly installed and adjusted for the application.

Key Features and Benefits

• 400A rated current and 3-pole configuration
• Rated for 600VAC
• Manufacturer-described magnetic-only motor circuit protector
• Provides short-circuit protection only
• Designed for use as a disconnect in combination with motor starters
• Adjustable magnetic pickup allows the instantaneous opening point to be coordinated with the motor application
• 2,000A magnetic hold current
• 4,000A magnetic tripping current
• Unit-mount design
• Lugs on both the line and load sides
• Uses AL400LA terminals
  

Technical Specifications

• Catalog Number: LAL3640036M
  
• Product Type: Motor Circuit Protector
  
• Series / Type: LA
  
• Rated Current: 400A
  
• Poles: 3
  
• Voltage Rating: 600VAC
  
• Protection: Magnetic-only, short-circuit protection
  
• Magnetic Hold Current: 2,000A
  
• Magnetic Tripping Current: 4,000A
  
• Magnetic Pickup: Adjustable
  
• Mounting: Unit mount
  
• Connections: Line and load lugs
  
• Terminal Identifier: AL400LA
  
• Tightening Torque: 115.06 lbf-in (13 N·m), for the applicable specified conductor range
  
• Specified Conductor Ranges: 1 AWG–600 kcmil and 1 AWG–250 kcmil, as applicable
  
• Height: 11 in. (279.4 mm)
  
• Width: 6 in. (152.4 mm)
  
• Depth: 5.84 in. (148.34 mm)
  
• Country of Origin: Mexico
  

Material Compliance and Certifications

• UL Listed
• CSA
• IEC
  

Where It Works Best

The LAL3640036M makes the most sense when you're working with existing or legacy motor-control equipment that calls for a 400A, 3-pole, 600VAC LA magnetic motor circuit protector in a unit-mount configuration.

Work through the match carefully. Check the 400A current rating and three-pole arrangement, then the 600VAC rating. Review the magnetic characteristics—2,000A hold and 4,000A trip—and make sure the adjustable pickup matches the motor application.