LAL3640036M - 400 Amp Motor Circuit Protector

LAL3640036M - 400 Amp Motor Circuit Protector

If you’re looking for a reliable way to protect your motor circuits in tough industrial environments, the LAL3640036M from Schneider Electric is a solid pick. This 3-pole, 400-amp motor circuit protector is built to handle high-demand systems, operating at up to 600 volts AC and 250 volts DC. With its thermal-magnetic trip mechanism, it provides consistent, fast-acting protection against overloads and short circuits—exactly what you need to keep equipment running safely and minimize downtime.

What makes this unit stand out is its adjustable amperage pick-up, giving you the flexibility to fine-tune settings to match your motor’s startup characteristics. That means fewer nuisance trips and better overall coordination with motor starters. It’s also designed to fit seamlessly into your existing setup, using standard LA series lugs and accessories, so you don’t have to worry about compatibility.

Key Features & Benefits

• Quick Short-Circuit Protection: The magnetic trip unit reacts instantly to high current spikes, protecting your equipment from damage.
• Customizable Settings: Adjust the amperage pick-up to better match your motor’s needs and reduce unwanted interruptions.
• Easy Integration: Fits with LA standard lugs and accessories—no guesswork, no special modifications.
• Simple Installation: Unit-mount design makes it easy to slot into control panels, MCCs, and switchboards.
• Built for Real-World Use: Tough enough for industrial settings, this unit won’t let you down under pressure.
• Eco-Conscious Choice: Free from mercury, PVC, and halogens, and fully compliant with RoHS and REACh environmental standards.

Technical Specs at a Glance

• Amperage: 400 A
• Poles: 3
• Voltage: 600 VAC / 250 VDC
• Magnetic Hold: 2000 A
• Magnetic Trip: 4000 A
• Terminals: AL400LA (line and load lugs)
• Torque: 115.06 lbf.in (13 N·m)
• Wire Sizes: AWG 1–600 kcmil (0.07–0.5 in), AWG 1–250 kcmil (0.07–0.2 in)
• Dimensions:
  • Height: 11 in
  • Width: 6 in
  • Depth: 5.84 in

Certifications & Environmental Compliance

• You can feel good about installing this unit—it meets RoHS and REACh standards, contains no mercury or hazardous materials, and carries Schneider Electric’s Green Premium label for sustainable manufacturing. Built with long-term performance and environmental responsibility in mind.

Where It Works Best

• This protector is ideal for industrial motor control applications—whether you’re outfitting a motor control center, a switchboard, or a panelboard. It’s especially useful in environments where motors need dependable overload and short-circuit protection without frequent trips or maintenance headaches.