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circuit-breaker

Square D NQOD42L400CU Circuit Breaker, 400A

★★★★★
Part Number NQOD42L400CU
Amperes 400
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 $5,538.00
Sale price $5,538.00 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
Square D NQOD42L400CU Circuit Breaker 400A - Circuit Breakers

Square D NQOD42L400CU Circuit Breaker, 400A

Regular price $5,538.00
Sale price $5,538.00 Regular price
Unit price
Product description
Shipping

Square D NQOD42L400CU Circuit Breaker, 400A is a rugged protection device crafted for demanding industrial environments. Whether you’re outfitting a new installation, performing maintenance, or replacing aging hardware, this 400 A breaker delivers reliable overcurrent protection to keep critical equipment and processes running smoothly.

  • Manufacturer: Square D
  • Product Type: Circuit Breaker
  • Part Number: NQOD42L400CU
  • Amperage: 400 A

Why this matters in the real world: industrial facilities demand dependable protection that can handle high electrical demand and frequent service work. The NQOD42L400CU is purpose-built for service entry, maintenance windows, and replacement projects, helping safeguard panels, feeders, and downstream equipment from overcurrent events.

Ideal use scenarios

  • Industrial electrical service installations and upgrades
  • Maintenance outages requiring reliable circuit protection
  • Replacement of aging or failed breakers in heavy-duty environments

How to ensure compatibility — Verify the fit by the exact part number (NQOD42L400CU) and assess your application requirements to ensure proper protection. If you’re unsure about compatibility, we’re here to help— message us and we’ll assist with cross-checks and guidance to confirm the right fit for your system.

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

Solid quality component. Exactly as described on the product page.

Maintenance team · Ontario

Verified

Packaging was secure and the item arrived clean and ready for installation.

Electrical contractor · GTA

Verified

We’ve used this type on multiple jobs and it’s been reliable so far.

Panel shop · Canada/US

Fast industrial sourcing support

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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