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
Circuit Breaker

Eaton | CK3400N-4P | Circuit Breaker | 400A | 4-Pole | 600V

★★★★★
Part Number CK3400N-4P
Amperes 400
Poles 4
Voltage 600
Product Type Circuit Breaker
Icon
Manufacturer :Eaton
Icon
Replacement available
Icon
Picture available on request
Icon
CSA / UL Approved
Regular price $2,010.00
Sale price $2,010.00 Regular price
Unit price
Save

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

Eaton | CK3400N-4P | Circuit Breaker | 400A | 4-Pole | 600V

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

Meet the Eaton CK3400N-4P circuit breaker—a robust, high-current protection device designed for demanding electrical environments. With a 400 A rating and a 4-pole configuration, this breaker provides comprehensive disconnection for 3-phase, 4-wire systems at up to 600 V, making it ideal for industrial panels, main disconnects, and retrofit projects where exact specifications matter.

  • Amperage: 400 A
  • Poles: 4-pole
  • Voltage rating: 600 V
  • Applications: maintenance, retrofit, and replacement in compatible panels and enclosures
  • Reference reference: Part number CK3400N-4P is your best compatibility guide; confirm fit and ratings before ordering

Why this CK3400N-4P is a smart choice for 600 V systems

  • Designed for situations where a single device must reliably protect multiple conductors and loads in a heavy-duty, 4-pole configuration.
  • Built to slot into Eaton-compatible gear, simplifying replacement or retrofit when upgrading to higher current capacity.
  • Ideal for facilities upgrading service equipment, industrial controls, or large-motor applications that require a 400 A protection device.

Who should consider the CK3400N-4P?

  • Facilities planning maintenance schedules that require a straightforward, high-current replacement option.
  • Owners performing panel retrofits to support increased load demands while maintaining a 600 V electrical environment.
  • Systems engineers seeking a reliable, standard-reference part number to ensure compatibility during component upgrades.

Practical installation and compatibility tips

  • Always confirm the fit and ratings before ordering—the CK3400N-4P part number is the best reference for compatibility with your panel or enclosure.
  • Verify that your panel bus and enclosure are rated for 400 A and 600 V to ensure safe, compliant operation.
  • Consult your electrical design documents or a qualified electrician when integrating a 4-pole breaker into existing 3-phase systems.
  • Store and handle spare breakers in a clean, dry environment to preserve performance and reliability over time.

Contact sales@ampstate.com

Shipping cost is based on weight. Just add products to your cart and use the Shipping Calculator to see the shipping price.

We want you to be 100% satisfied with your purchase.

What Our Customers Say

4.9 (38 reviews)

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

Verified

Professional-grade feel. No issues reported during commissioning.

Controls · Commissioning

Verified

Arrived in good condition and helped keep our project on schedule.

Project team · Contractor

Verified

Exactly what most contractors expect from an industrial supplier.

Electrical · Commercial

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