LAL3640033M - 400 Amp Motor Circuit Protector

LAL3640033M - 400 Amp Motor Circuit Protector

The LAL3640033M is a 400-amp, 3-pole LA motor circuit protector with a thermal-magnetic trip design and unit-mount configuration. If you're matching a replacement to equipment that's already in service, work through the specifications one by one. Confirm the 400A rating, three-pole setup, voltage and interrupting ratings, magnetic characteristics, mounting, connections, and physical size.

Key Features and Benefits

• 400A, 3-pole configuration
• Thermal-magnetic trip technology
• 1,500A magnetic hold current
• 3,000A magnetic tripping current
• Unit-mount design
• Lugs on both the line and load sides
• AL400LA terminal identifier
• Published dimensions make it easier to check available space and physical fit
• Suitable as a form, fit, and functional replacement where the complete specifications match the existing application
  

Technical Specifications

• Catalog Number: LAL3640033M
  
• Product Type: Motor Circuit Protector
  
• Type / Series: LA
  
• Rated Current: 400A
  
• Poles: 3
  
• Trip Technology: Thermal-magnetic
  
• AC Rating: 600VAC
  
• Interrupting Rating: 22kA at 600VAC
  
• DC Rating: 250VDC
  
• DC Interrupting Rating: 10kA at 250VDC
  
• Magnetic Hold Current: 1,500A
  
• Magnetic Tripping Current: 3,000A
  
• Mounting: Unit mount
  
• Connections: Line and load lugs
  
• Terminal Identifier: AL400LA
  
• Tightening Torque: 115.06 lbf-in (13 N·m), for 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 LAL3640033M as UL Listed, with CSA and IEC certifications also identified.

Where It Works Best

The LAL3640033M is intended for applications calling for a 400A, 3-pole LA motor circuit protector with the ratings and configuration listed above. That makes it particularly relevant when maintaining existing or legacy equipment where matching the original electrical and physical requirements is important.

On the electrical side, verify the 400A rating, three poles, 22kA at 600VAC, and, where applicable, 10kA at 250VDC. The magnetic characteristics should also match: 1,500A hold and 3,000A trip.