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Circuit Breaker

Square D | MAL3660040M | Circuit Breaker | 600A | 3-Pole | 600V

★★★★★
Part Number MAL3660040M
Amperes 600
Poles 3
Voltage 600
Product Type Circuit Breaker
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Manufacturer :Square D
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $2,010.00
Sale price $2,010.00 Regular price
Unit 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
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

Square D | MAL3660040M | Circuit Breaker | 600A | 3-Pole | 600V

Regular price $2,010.00
Sale price $2,010.00 Regular price
Unit price
Product description
Shipping

The Square D MAL3660040M Circuit Breaker delivers dependable overcurrent protection for demanding electrical systems. With a 600A rating, a three-pole configuration, and a 600V capacity, this unit is designed to guard power distribution in industrial and commercial environments while integrating seamlessly with Square D panels.

  • Exact-fit for maintenance, retrofit, and replacement — when your project demands precise specifications, MAL3660040M provides reliable compatibility, with the part number serving as the most trusted reference for your order.
  • Three-pole protection — protects three conductors simultaneously, providing balanced, multi-line interruption in 600V systems to help safeguard equipment and personnel.
  • High-current capability — 600A capacity supports heavy service loads and equipment with startup surges, helping minimize unnecessary trips when paired with proper system design.
  • Trusted brand lineage — Square D is a long-standing name in electrical protection, ensuring consistent performance and compatibility within Square D panels and components.

Compatibility and installation guidance

  • Verify the exact part number MAL3660040M to ensure you’re selecting the correct replacement or retrofit model for your panel.
  • Confirm electrical ratings: 600A, 3-pole configuration, and 600V to match your system design and panel labeling.
  • Consult your panel documentation or the existing breaker’s labeling to confirm mounting footprint and compatibility notes.

Ideal use cases

  • Maintenance projects where a precise Square D replacement is required to restore original protection characteristics.
  • Retrofits aiming to restore or upgrade protection in aging panels without altering system architecture.
  • Replacement of failed breakers in 600V service environments that require a 3-pole configuration for proper operation.

Note: Confirm fit and ratings before ordering. The MAL3660040M part number is the best reference for compatibility with your equipment.

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

Exactly what we needed for a shutdown replacement. No surprises.

Plant · Shutdown

Verified

Good communication and clear updates while the order was processed.

Project · Coordination

Verified

Looks and feels like a proper industrial-grade part. Works as expected.

Service · Field install

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