SKU: 85864182816

Eaton Cutler-Hammer HKDDC3400 400A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VDC

$854.55 $949.50
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Description

Eaton Cutler-Hammer HKDDC3400 400A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VDCThe Eaton Cutler Hammer HKDDC3400 is a heavy duty K frame molded case circuit breaker designed to provide dependable protection in DC electrical distribution systems. Featuring a thermal magnetic interchangeable trip unit, this breaker ensures accurate overload and short circuit protection while allowing adjustable trip settings for different operational requirements. With a 400 ampere rating at 40C and high DC interrupting capacity, the HKDDC3400 is

The Eaton Cutler-Hammer HKDDC3400 is a heavy-duty K-frame molded case circuit breaker designed to provide dependable protection in DC electrical distribution systems. Featuring a thermal-magnetic interchangeable trip unit, this breaker ensures accurate overload and short-circuit protection while allowing adjustable trip settings for different operational requirements. With a 400-ampere rating at 40°C and high DC interrupting capacity, the HKDDC3400 is well suited for industrial facilities, renewable energy systems, battery storage installations, and other demanding DC power applications. The bolt-on mounting design ensures secure installation in electrical panels and switchgear, while the standard terminal configuration simplifies wiring and system integration.

Product Specifications

  • Brand: Eaton / Cutler-Hammer
  • Model: HKDDC3400
  • Breaker Type: Molded Case Circuit Breaker (MCCB)
  • Frame Style: HKD (K-Frame)
  • Rated Current: 400 Ampere
  • Number of Poles: 3 Pole
  • Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit
  • Mounting Type: Bolt-On Connection
  • Terminal Configuration: With Terminals Standard
  • Warranty: One Year Manufacturer Warranty

Technical Specifications

  • Frame Type: K-Frame
  • Trip Adjustment Range: Adjustable from 5× to 10× the continuous ampere rating
  • Operating Temperature Reference: 40°C
  • Protection Type: Overload and Short Circuit Protection
  • Breaker Construction: Molded insulated case for durability and electrical safety
  • Application Type: DC power protection and distribution systems

Voltage and Ratings

  • Maximum Voltage: 600 VDC
  • Interrupting Rating (1 Pole in Series): 42 kA @ 125 VDC
  • Interrupting Rating (2 Poles in Series): 50 kA @ 250 VDC
  • Interrupting Rating (3 Poles in Series): 42 kA @ 600 VDC
  • Frequency Reference (AC): 50/60 Hz

Product Data

  • Manufacturer: Eaton / Cutler-Hammer
  • Product Series: HKD Series
  • Model Number: HKDDC3400
  • Current Rating: 400A
  • Number of Poles: 3
  • Connection Type: Bolt-On
  • Terminal Type: Standard Terminals Included
  • Application: Industrial DC power distribution, battery systems, and renewable energy protection circuits

Important Note

The product image typically represents a base model for identification purposes only, and the final configuration may vary depending on installed accessories or selected options. If accessories are ordered together with the breaker, they can be installed according to your specific configuration requirements at no additional cost. Please include the necessary configuration details in the order comment section during checkout to ensure proper assembly before shipment.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 85864182816

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4.5 ★★★★★
Based on 1784 reviews
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C
Compelled to write a review
New York, US
★★★★★ 3
Can't turn it off quickly. Charging stand falls over easily.
This Electric Milk Frother Handheld: Wireless Starlight Black comes with three stainless steel mixer attachments, a charging cable, and a stand that holds the frother with magnets. The attachments are friction fit, they are easy to change and stay securely in place. The frother has three speeds, the speed changes by pressing the On button. Which is why I deducted one star. The problem is you can not turn the frother off quickly. You have to either cycle through the speeds, or hold the button for 2 seconds. When making a chocolate drink, I could not turn the frother off when my drink was about to spill and it made a mess. I recommend getting a frother with a momentary on off button that you hold down to keep it running and let off to stop it. I removed a second star because the base of the charger is narrow and light making it easy to fall over. It has to be taped to the counter with double sided tape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
J
JPBIZSPACE
Massapequa, US
★★★★★ 5
Impressive Power and Convenience Right Out of the Box
I just got this electric milk frother, and after only a few uses I’m already impressed. It has strong, consistent power that turns milk into smooth, velvety foam in seconds — perfect for lattes, cappuccinos, or even mixing matcha. The LED display is a surprisingly premium touch, making it easy to see and switch between speeds. The fact that it’s rechargeable is a huge plus, and the 3‑in‑1 attachments give it more versatility than most handheld frothers. The charcoal black finish looks sleek and modern, and the build feels solid so far. Even with just a handful of uses, it’s clear this frother delivers great performance and convenience. A fantastic little upgrade to any coffee routine — definitely a 5‑star start.
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Reviewed in the United States on May 22, 2026
M
Verified Purchase
Mike from San Diego
Natrona Heights, US
★★★★★ 5
I love it!
Color: Black, Size: Rechargeable
This thing works great! It holds a charge for a long time. I love that it has different attachments. I use it mainly for mixing powder into my drinks. It is very powerful. The speed is adjustable too. It feels good to hold too. It lights up when you squeeze the trigger and when it starts losing charge, the light bar gets shorter. I highly recommend it.
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Reviewed in the United States on June 3, 2026
K
Verified Purchase
KindleDiva
Los Angeles, US
★★★★★ 5
Perfect all-around frother, stand keeps it nice and neat on the counter within easy reach.
Color: Black, Size: Rechargeable
Rechargeable, lightweight, variable speeds and optional whisks all make this the perfect item for your kitchen. You can quickly froth milk for your coffees, whip a small batch of whip cream, and even make mug cakes with the hook attachment. The price is very compatible with the competitors, but the ease of use makes this a top choice. The variable speeds makes it much better to control than the push button ones. When you let go of the pressure switch it turns off, no need for a dedicated on-off switch. Having the pressure switch on the top makes it extremely easy to use! It fits very comfortably in the hand and with the metal stand, looks quite nice on the counter, ready to use at any time. I highly recommend this InstaWhisk!
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Reviewed in the United States on May 28, 2026
A
Verified Purchase
Amazon Customer
Belleville, US
★★★★★ 5
Great product from a great company
Color: Black, Size: Rechargeable
This product works very well. There are several other whips to use also. I absolutely love the cream it makes and that is important so I can enjoy my morning coffee. I used this whisk for quite a while then all of a sudden it stopped working. I wrote to the company to explain. A few days later they sent me a beans new whisk. GREAT item and great company to work with.
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Reviewed in the United States on May 23, 2026

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