Eaton Cutler Hammer HKDDC3300 300A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VDC
SKU: 22153180937

Eaton Cutler Hammer HKDDC3300 300A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VDC

Sale price$719.55 Regular price$799.50
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Description

Eaton Cutler Hammer HKDDC3300 300A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VDCThe Eaton Cutler Hammer HKDDC3300 is a high performance K frame molded case circuit breaker engineered for reliable protection in DC power distribution systems. Designed with a thermal magnetic interchangeable trip unit, this breaker provides dependable overload and short circuit protection while allowing flexible trip adjustment to suit varying load conditions. With a 300 ampere rating at 40C and high interrupting capacity, the HKDDC3300 is suitable

The Eaton Cutler-Hammer HKDDC3300 is a high-performance K-frame molded case circuit breaker engineered for reliable protection in DC power distribution systems. Designed with a thermal-magnetic interchangeable trip unit, this breaker provides dependable overload and short-circuit protection while allowing flexible trip adjustment to suit varying load conditions. With a 300-ampere rating at 40°C and high interrupting capacity, the HKDDC3300 is suitable for demanding industrial and commercial DC applications such as battery systems, renewable energy installations, and DC power distribution panels. Its bolt-on mounting design ensures secure installation, while the standard terminal configuration simplifies wiring and system integration.

Product Specifications

  • Brand: Eaton / Cutler-Hammer
  • Model: HKDDC3300
  • Breaker Type: Molded Case Circuit Breaker (MCCB)
  • Frame Style: HKD (K-Frame)
  • Rated Current: 300 Ampere
  • Number of Poles: 3 Pole
  • Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit
  • Mounting Type: Bolt-On Connection
  • Standard Lug Type: 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
  • Circuit Protection: Overload and Short Circuit Protection
  • Configuration: DC Rated Circuit Breaker
  • Construction: Molded case insulated housing for durability and electrical safety

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 (AC reference rating): 50/60 Hz

xProduct Data

  • Manufacturer: Eaton / Cutler-Hammer
  • Product Series: HKD Series
  • Model Number: HKDDC3300
  • Current Rating: 300A
  • Number of Poles: 3
  • Connection Type: Bolt-On
  • Terminal Type: Standard Terminals Included
  • Application: Industrial DC power distribution and protection systems

Important Note

The product image typically represents a base model for identification purposes only, and the actual configuration may vary depending on installed accessories. If accessories are ordered together with the breaker, they can be installed according to your configuration requirements at no additional cost. Simply include the required configuration details in the order comment section during checkout to ensure proper setup 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: 22153180937

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Gwendolyn Adams
Whiting, US
★★★★★ 5
Quick responses!
Thanks, I do enjoy having things done, within a excellence procedure which usually follows a fairly quick response. P.S. thanks again this was really great.
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Reviewed in the United States on May 30, 2026
M
Verified Purchase
Maritza Grapevine
Bozeman, US
★★★★★ 4
ASURION EXTENDED WARRANTIES
I was skeptical that my ASURION warranty would be honored since it was not an easy process to submit claim and required following up several times. Not as easy as buying it initially for a product on check out at amazon. Once the burdensome process was completed on my end, It was easy load the gift card issued for the warranty to my Amazon account. I would definitely look at warranty policies closer though before purchasing one. Good luck if you decide to purchase extended warranty.
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Reviewed in the United States on May 19, 2026
Q
Verified Purchase
Quakonmoon
Omaha, US
★★★★★ 5
True value for money
It’s great protection plan I can say “A true value for the money and it’s very easy to claim and process
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Reviewed in the United States on April 23, 2026
A
Verified Purchase
Amazon Customer
Natrona Heights, US
★★★★★ 5
Professional
Worth the protection
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Reviewed in the United States on April 15, 2026
M
Verified Purchase
Mir31
West Palm Beach, US
★★★★★ 1
Waste of Money and Time
It’s useless buying this protection plan. They will not help you with your issue. They will refer you back to the seller. What’s the point of buying a protection plan when they refuse to help? I DO NOT recommend purchasing this plan. Total waste of money and time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 25, 2026

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