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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Vail-Marie Kendall
Omaha, US
★★★★★ 4
Heavy duty chewing, not heavy duty dropping
Size: X-Large, Color: Textured Ring
My super chewer loved this toy, great shape, provided long lasting entertainment. However, when he dropped it from his mouth onto our epoxy flooring (not a far drop as he’s only 50lbs) one chunk broke clean off at the 2 smaller joints. Although we kept the larger piece for a while, a similar drop a week later broke it again. Considering this is fairly inexpensive, I wasn’t expecting it to be indestructible. It’s just strange how it broke. Will probably buy again to test one more time.
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Reviewed in the United States on March 9, 2026
C
Verified Purchase
Charlene
Natrona Heights, US
★★★★★ 5
My dog loves these things
Size: Large, Color: Femur Bone
My dog loves these things. They don't smell at all. It was a great price. It's big enough for my Frenchie. It's pretty durable but he is able to gnaw it rough so I do have to replace them periodically.
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Reviewed in the United States on March 24, 2026
J
Verified Purchase
Joe & Laura
Natrona Heights, US
★★★★★ 5
Doggo Approved
Size: X-Large, Color: Textured Ring, Size: X-Large, Color: Textured Ring
About as indestructible as it gets. It's just very hard molded material. I always make sure to wash the dog toys before letting them play, who knows where they come from. Picture is after hours/days of the built playing with it
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Reviewed in the United States on May 26, 2026
L
Verified Purchase
Lynn G
San Leandro, US
★★★★★ 5
Old Faithful
Size: Large, Color: Wishbone, Size: Large, Color: Wishbone
AmStaf/Lab loves this product. I am still concerned about him ingesting the sharp little pieces he gnaws off, but he seems OK after three months of using these. Tried the Nylabone natural/wild products but they are not usable as a "chew" and disappear within minutes, nay seconds! -So here I am back to the "strong chew" wishbone product which makes my dog happy and keeps him busy not eating my shoes. (Be warned though, these are worse than Legos if accidentally stepped on!)
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Reviewed in the United States on April 13, 2026
A
Verified Purchase
andy
Omaha, US
★★★★★ 5
Perfect for small dog that likes to chew
Size: Small, Color: Textured Ring
Just got this today (small size for my 15 lb dog) and she loves it. Perfect size for her small mouth and teeth. Keeps her busy and even tires her out and rests a while, Between this type of dog toys and ones that squeak she is having a great time
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Reviewed in the United States on May 4, 2026

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