LAL3640031M - 400 Amp Motor Circuit Protector

LAL3640031M - 400 Amp Motor Circuit Protector

Protect your motor circuits with confidence—this 3-pole, 400-amp motor circuit protector is engineered for demanding industrial and commercial applications. With support for both 600 VAC and 250 VDC systems, the LAL3640031M delivers dependable defense against short circuits and overloads using thermal-magnetic trip technology. Its adjustable trip settings help you fine-tune protection coordination with motor starters, reducing nuisance trips and improving system uptime. Designed to accept the same lugs and accessories as equivalent LA molded-case protectors, installation and integration are simpler and cleaner.

Key Features and Benefits

• Motor circuit protection you can trust: Safeguards motors from harmful overload and short circuit events.
• Adjustable pickup settings: Let you precisely match trip thresholds to your motor’s requirements for smoother coordination.
• Accessory compatibility: Works with existing LA lug and accessory options, making upgrades easier.
• Dual-voltage support: Covers 600 VAC and 250 VDC use cases, broadening your application flexibility.
• Eco-friendly design: Complies with RoHS and REACH standards and incorporates sustainable packaging practices.
  

Technical Specifications

• Trip Unit Type: Thermal-magnetic
  
• Line Rated Current: 400 A
  
• Number of Poles: 3
  
• Mounting: Unit mount
  
• Magnetic Hold Current: 1,125 A
  
• Magnetic Trip Current: 2,250 A
  
• Electrical Connections: Lugs (line & load)
  
• Terminal Identifier: AL400LA
  
• Tightening Torque: 115.06 lbf·in (13 N·m) for 0.07–0.5 in² (42–304 mm²) and 0.07–0.2 in² (42–127 mm²) conductors
  
• Dimensions (H × W × D): 11 in × 6 in × 5.84 in (279.4 mm × 152.4 mm × 148.34 mm)
  
• Interrupt Rating: Up to 22 kA @ 600 VAC, 10 kA @ 250 VDC
  

Material Compliance and Certifications

• Industry Standards: Certified to IEC, UL, and CSA standards.
• Environmental Compliance: Fully RoHS and REACH compliant.
• Sustainability Designation: Carries “Green Premium” sustainability designation.
• Proposition 65 Compliance: Meets California Proposition 65 labeling requirements (contains DINP and DIDP).
  

Where It Works Best

• This motor circuit protector thrives in harsh industrial settings—such as factories, processing plants, HVAC systems, pumps, compressors, and other heavy-duty motor installations. Wherever reliable motor protection is needed—especially in systems operating at higher voltages or under changing load conditions—the LAL3640031M fits the bill. Use it where coordination with motor starters is essential, or where retrofitting to existing LA-series infrastructure helps reduce downtime and hassle.