LAL3640032M - 400 Amp Motor Circuit Protector

LAL3640032M - 400 Amp Motor Circuit Protector

The LAL3640032M is a 400-amp, 3-pole LA motor circuit protector for motor-control applications that require magnetic-only short-circuit protection. Rated for 600VAC, this Mag-Gard unit uses a unit-mount configuration with lugs on both the line and load sides. It is designed to serve as a disconnect device when used in combination with a motor starter. The magnetic pickup is adjustable, allowing you to coordinate the instantaneous opening point with the motor application. When you're replacing an existing protector, don't base the decision on amperage alone.

Key Features and Benefits

• 400A rated current for applications specifically requiring this amperage
• 3-pole configuration
• Rated for 600VAC
• Mag-Gard magnetic-only operation provides short-circuit protection
• Designed for use as a disconnect device in combination with a motor starter
• Adjustable magnetic pickup allows the instantaneous opening point to be coordinated with the motor application
• 1,250A magnetic hold current
• 2,500A magnetic tripping current
• Unit-mount design for equipment requiring this mounting arrangement
• Lugs on both the line and load sides
• AL400LA terminal identifier
  

Technical Specifications

• Catalog Number: LAL3640032M
  
• Product / Component Type: Motor Circuit Protector
  
• Type / Series: LA
  
• Product Designation: Mag-Gard
  
• Rated Current: 400A
  
• Number of Poles: 3
  
• Voltage Rating: 600VAC
  
• Protection Description: Magnetic-only, short-circuit protection
  
• Magnetic Pickup: Adjustable
  
• Magnetic Hold Current: 1,250A
  
• Magnetic Tripping Current: 2,500A
  
• Mounting Mode: Unit mount
  
• Electrical Connections: Line lugs and load lugs
  
• Terminal Identifier: AL400LA
  
• Tightening Torque: 115.06 lbf-in (13 N·m), subject to the applicable 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)
  

Material Compliance and Certifications

The supplied specifications list the LAL3640032M as UL Listed and carrying CSA and IEC certifications. Consider these certifications, along with the electrical ratings and equipment requirements, when checking replacement suitability.

Where It Works Best

The LAL3640032M is best suited to existing or legacy motor-control equipment that specifically calls for a 400A, 3-pole, 600VAC LA Mag-Gard motor circuit protector with magnetic-only short-circuit protection.

For replacement work, start with the basics: 400 amps, three poles, and 600VAC. From there, verify the magnetic characteristics. This model has a 1,250A magnetic hold current and 2,500A magnetic tripping current, along with adjustable magnetic pickup.