Don't see what you're looking for? We can get it for you!
Call us: 1-866-853-4768

Eaton Series C complete molded case circuit breaker, K-frame, DK, Complete breaker, Fixed thermal, Fixed magnetic trip, Three-pole, 400 A, 240 Vac, 250 Vdc, 65 kAIC at 240 Vac, 10 kAIC at 250 Vdc, Aluminum, Line and load, 50/60 Hz

SKU: #163974

Part: #DK3400

UPC: 786679044155

Eaton Series C complete molded case circuit breaker, K-frame, DK, Complete breaker, Fixed thermal, Fixed magnetic trip, Three-pole, 400 A, 240 Vac, 250 Vdc, 65 kAIC at 240 Vac, 10 kAIC at 250 Vdc, Aluminum, Line and load, 50/60 Hz

SKU: #163974

Part: #DK3400

UPC: 786679044155

Product form

Out of stock, Call 1-866-853-4768 for availability and price.  Most out of stock items can be ordered and are usually available to ship in 1-3 business days.

    Next day delivery

    Description

    Eaton Series C Complete Molded Case Circuit Breaker – Electrical Distributor Circuit Protection

    The Eaton Series C complete molded case circuit breaker, K-frame DK model, is designed for reliable circuit protection in electrical distribution systems. Ideal for use in lighting solutions, wire and cable networks, and as part of switchgear supplier offerings, this three-pole breaker provides dependable interrupting capabilities for industrial and commercial applications. It supports both line and load connections and operates at 50/60 Hz, ensuring compatibility with a wide range of electrical systems.

      Specifications

    • Manufacturer: Eaton
    • Manufacturer Part Number: DK3400
    • Frame Type: K
    • Poles: Three-pole
    • Amperage Rating: 400 amperes
    • Voltage Rating: 240 Vac, 250 Vdc
    • Interrupt Rating: 65 kAIC at 240 Vac, 10 kAIC at 250 Vdc
    • Trip Unit: Fixed thermal, fixed magnetic trip
    • Frequency: 50/60 Hz
    • Material: Aluminum
    • Dimensions (W x H x L): 7 in x 6.5 in x 14 in
    • Product Weight: 12.6 lbs
    • UPC: 786679044155

      Features

    • Fixed thermal and magnetic trip units provide consistent and reliable circuit protection.
    • High interrupt rating supports industrial applications requiring robust fault current handling.
    • Three-pole design suitable for three-phase electrical distribution systems.
    • Constructed with durable aluminum for enhanced performance and longevity.
    • Compatible with Eaton’s K-frame Series C circuit breaker family for retrofit and replacement applications.
    • Supports line and load connections, simplifying installation and maintenance.
    • Designed for use in 240 Vac and 250 Vdc systems, covering a broad range of electrical distribution needs.
    • Compact form factor with standard dimensions for easy panel integration.
    • Safe & Secure

      Safe & Secure

      Shop with confidence, your privacy is our top priority.

    • Best Price Guarantee

      Best Price Guarantee

      Don't compromise quality for price – we have you covered.

    • One Stop Shop

      One Stop Shop

      Convenient shopping for the best in quality and service.

    • Nationwide Delivery

      Nationwide Delivery

      From our warehouse to your door - nationwide.

    Recently viewed

    View all 

    Shop by Department

    View all 

    View all 

    Recommended Products

    ULE Group Logo

    © 2026 ULE Group, All Rights Reserved.

      • Ach Direct Debit
      • American Express
      • Apple Pay
      • Diners Club
      • Discover
      • Google Pay
      • Mastercard
      • PayPal
      • Shop Pay
      • Visa

      Login

      Forgot your password?

      Don't have an account yet?
      Create account