LAL3640028M - 400 Amp Motor Circuit Protector

LAL3640028M - 400 Amp Motor Circuit Protector

Protect your motors and electrical systems with confidence using the LAL3640028M Motor Circuit Protector from Schneider Electric / Square D. Engineered for industrial and commercial applications, this 400-amp, 3-pole device delivers dependable protection against overloads, short circuits, and electrical faults. Its powerful performance and flexible voltage tolerance make it an excellent choice for motor control panels, drives, switchgear, and harsh environments where reliability is nonnegotiable.

Key Features and Benefits

• Specifically designed for motor circuits: Offering targeted protection against overloads, phase loss, and instantaneous faults.
• 400 A line rating in a 3-pole configuration: Ensures full three-phase system coverage with symmetry and balance.
• Magnetic (instantaneous) trip capability: Allows fast, precise trip response in short-circuit scenarios.
• Voltage versatility: Supports up to 600 VAC and up to 250 VDC, enabling use in AC and DC motor control circuits.
• Feed-through connection: Simplifies wiring of downstream circuits, reducing installation complexity.
• Durable build: Suited for challenging environments—engineered to last under industrial loads.

Technical Specifications

• Product Type: Motor Circuit Protector / Molded Case Circuit Breaker
• Trip Mechanism: Magnetic (instantaneous) trip
• Line Rated Current: 400 A
• Poles: 3 (three-phase)
• Rated Voltage: up to 600 VAC, 250 VDC
• Interrupt Rating (AIC):
  • 22 kA @ 600 V
  • 30 kA @ 480 V
  • Up to 42 kA @ 240 V
• Trip Range (Magnetic): 750–1,600 A
• Connection Type: Lugs (line and load)
• Mounting Style: Unit mount / I-Line architecture
• Dimensions:
  • Height: ~11.0 in (279.4 mm)
  • Width: 6.0 in (152.4 mm)
  • Depth: 5.84 in (148.34 mm)
• Torque Spec for Terminals: 13 N·m (≈ 115 lbf·in)

Material Compliance and Certifications

• Certified Standards: Certified to UL, CSA, and IEC standards, ensuring global conformity and safety.
• Environmental Compliance: Adheres to RoHS / REACH regulations, with halogen-free and PVC-free plastic components for lower environmental impact.
• Eco-Design: Manufactured following eco-design principles, aligning with “Green Premium” initiatives for reduced carbon footprint.

Where It Works Best

• This unit excels in industrial motor protection, particularly in applications such as pump systems, HVAC drives, conveyor belts, compressors, and production machinery. Use it in manufacturing plants, commercial facilities, processing plants, or any setting where guaranteed motor protection is vital. Thanks to its feed-through wiring, it’s also ideal in panelboards or switchgear where downstream circuits need to branch out. The wide voltage tolerance (both AC and DC) gives you flexibility when mixing control circuits.