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circuit-breaker

Eaton ECB400NK Circuit Breaker, 400A

Part Number ECB400NK
Amperes 400
Product Type circuit-breaker
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Manufacturer :Eaton
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $460.00
Sale price $460.00 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
Eaton ECB400NK Circuit Breaker, 400A

Eaton ECB400NK Circuit Breaker, 400A

Regular price $460.00
Sale price $460.00 Regular price
Unit price
Product description
Shipping

The Eaton ECB400NK Circuit Breaker, 400 A, is built for industrial electrical service, maintenance, and replacement projects. This genuine Eaton component provides reliable overcurrent protection while enabling safe isolation when service or upgrades are required. With a 400 amp rating, it’s positioned to handle higher-demand circuits common in industrial settings.

Product details at a glance: Manufacturer — Eaton; Part Number — ECB400NK; Product Type — Circuit Breaker; Amperage — 400 A. Use the part number ECB400NK to confirm compatibility for your application and ensure the device matches your system requirements before purchase.

Why the ECB400NK stands out

  • Designed specifically for industrial electrical service and maintenance tasks, making it a practical choice for replacements and service work.
  • Genuine Eaton hardware ensures consistent performance and dependable protection when ECB400NK is the correct part number for your application.
  • Part-number-based compatibility verification helps reduce fitment uncertainty and installation delays.

How to verify compatibility and buy with confidence

  • Confirm the part number: ECB400NK matches your equipment and application requirements.
  • Ensure the demanded protection level aligns with your 400 A circuit needs.
  • Need help matching a part number or confirming compatibility? Message us and we’ll help verify the fit.

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

Consistent quality. We’ve added similar items to our regular reorder list.

MRO · Reorder

Verified

Support is responsive when we have questions about fit or application.

Purchasing · Quick answers

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A reliable choice when we need industrial parts on short notice.

Service · Urgent replacement

Fast industrial sourcing support

Need help?

  • Request a quote
  • Need a BOM priced for your project
  • Not sure which part is correct
  • Need an equivalent or replacement
  • Send your part list and get a fast reply

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

Email for a quote Typical reply: same business day