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Square D LAF3640028M - 400A, Circuit Breaker

★★★★★
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Manufacturer :
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $787.00
Sale price $787.00 Regular price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Square D LAF3640028M - 400A Circuit Breaker - Circuit Breaker

Square D LAF3640028M - 400A, Circuit Breaker

Product description
Shipping

Meet the Square D LAF3640028M—a rugged 400A circuit breaker engineered to protect the heart of your electrical distribution. Built for demanding environments, this breaker delivers reliable overcurrent protection and safe operation in panelboards, switchboards, control panels, and OEM equipment. When you need dependable protection for high-current feeders and critical loads, LAF3640028M is ready to perform.

Key specifications

  • Current rating: 400A
  • Breaker type: Circuit Breaker
  • Suitable for: Panelboards, Switchboards, Control panels, OEM equipment

Why this 400A breaker stands out

Designed to integrate with the Square D protection family, the LAF3640028M provides consistent, reliable interruption for high-current circuits. Its robust construction supports safe operation in distribution panels and motor control centers, helping minimize risk to equipment and personnel while reducing unplanned downtime. Ideal for environments where industrial and commercial protection needs are non-negotiable, this breaker offers a dependable solution for controlling power flow to essential systems.

Ideal applications

  • Industrial distribution panels and motor control centers (MCCs)
  • Commercial panelboards and switchboards requiring strong overcurrent protection
  • OEM equipment where a reliable 400A protection device is essential

Installation and practical considerations

Use this 400A circuit breaker in appropriate Square D panelboards, switchboards, or control panels designed to accommodate its rating. It’s suited for applications that demand robust protection for high-current feeders and critical loads within distribution schemes. Ensure compatibility with your existing protection strategy and upstream devices to achieve optimal performance and coordination.

With the Square D LAF3640028M, you gain a high-capacity, dependable circuit breaker tailored for industrial and commercial use, ready to safeguard your most important electrical infrastructure and keep operations running smoothly.

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

Verified

Feels well-built and suitable for everyday plant and maintenance use.

Facilities · Manufacturing

Verified

Lead time was reasonable and the part matched expectations when it arrived.

Procurement · Ontario

Verified

Good value for industrial use. Customers mention easy installation.

Service tech · Field work

Fast industrial sourcing support

Need help?

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

Email for a quote Typical reply: same business day