Eaton Cutler Hammer KD3100 100A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VAC
SKU: 55752683474

Eaton Cutler Hammer KD3100 100A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VAC

Sale price$539.55 Regular price$599.50
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Description

Eaton Cutler Hammer KD3100 100A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VACThe Eaton Cutler Hammer KD3100 is a durable K frame molded case circuit breaker designed to provide reliable protection for commercial and industrial AC power distribution systems. Featuring a thermal magnetic interchangeable trip unit, this breaker ensures dependable protection against overloads and short circuits while offering adjustable trip settings to accommodate different load conditions. Rated at 100 amperes at 40C, the KD3100 provides strong

The Eaton Cutler-Hammer KD3100 is a durable K-frame molded case circuit breaker designed to provide reliable protection for commercial and industrial AC power distribution systems. Featuring a thermal-magnetic interchangeable trip unit, this breaker ensures dependable protection against overloads and short circuits while offering adjustable trip settings to accommodate different load conditions. Rated at 100 amperes at 40°C, the KD3100 provides strong interrupting capacity for both AC and limited DC applications. Its bolt-on mounting configuration allows secure installation in switchboards, panelboards, and distribution equipment, while standard aluminum line and load terminals provide convenient and reliable electrical connections.

Product Specifications

  • Brand: Eaton / Cutler-Hammer
  • Model: KD3100
  • Breaker Type: Molded Case Circuit Breaker (MCCB)
  • Frame Style: KD (K-Frame)
  • Rated Current: 100 Ampere
  • Number of Poles: 3 Pole
  • Trip Unit Type: Thermal Magnetic Interchangeable Trip Unit
  • Mounting Type: Bolt-On Connection
  • Standard Lug Type: Aluminum Line and Load End 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: Commercial and industrial power distribution protection

Voltage and Ratings

  • Maximum Voltage: 600 VAC
  • Interrupting Rating: 65 kA @ 240 VAC
  • Interrupting Rating: 35 kA @ 480 VAC
  • Interrupting Rating: 25 kA @ 600 VAC
  • DC Interrupting Rating: 10 kA @ 250 VDC
  • Frequency: 50/60 Hz

Product Data

  • Manufacturer: Eaton / Cutler-Hammer
  • Product Series: KD Series
  • Model Number: KD3100
  • Current Rating: 100A
  • Number of Poles: 3
  • Connection Type: Bolt-On
  • Terminal Type: Aluminum Line and Load End Terminals Included
  • Application: Industrial panelboards, switchboards, and electrical distribution systems

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 options. If accessories are ordered together with the breaker, they can be installed according to your required configuration 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: 55752683474

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Product Reviews
D
DonRad
Boise, US
★★★★★ 5
Made of carbide steel material and has high hardness characteristic
The shank that fits into the drill has three flattened surfaces, making them less likely to slip in the chuck. Much much easier to use than hand reamers!!! NOT AS DESCRIBED: The title says these are both carbon steel and carbide steel, but they are not the same. carbon steel and carbide are not the same; they are fundamentally different materials with distinct properties. Carbon steel is a metal alloy of iron and carbon, known for flexibility and toughness. Carbide (often Tungsten Carbide) is a ceramic-like, extremely hard, and brittle compound used for cutting, offering much higher wear resistance and heat tolerance. These have the look and feel of carbide, and not carbon. In my expert opinion. Most tires are "steel belted radial" and it is hard to ream through the steel belts by hand. I have spent HOURS trying to ream through difficult tire punctures by hand! These bits make quick work of the process. If needed, the sizes can be used gradually from smallest to largest. They leave a smooth sided hole which is less prone to leakage when the tire plug is inserted. Excellent value for the money! Highly recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026
T
Toodles McDoodles
New York, US
★★★★★ 5
Makes plugging faster
It makes to process of plugging a tire a lot faster. I think you need to use a drill with these. Unless you had a hand drill with a chuck to tighten down on the bits, you probably wouldn't be able to use like a t-handle because you couldn't pull the reamer bits out. Just in case you were thinking of keeping this in a roadside emergency kit. It turns probably a 30 minute job into a 5 minute job with a drill though. I attached a picture of the hole after I was done reaming with all 3 sizes up to the largest.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 13, 2025
W
Verified Purchase
Woohoo
Alexandria, US
★★★★★ 5
These work great.
Size: CB-M03H
These work great, and is much easier than a hand reamer. Quality seems good as well.
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Reviewed in the United States on September 28, 2025
H
Verified Purchase
HOTROD64
Louisville, US
★★★★★ 5
GOOD QUALITY
Size: CB-M03
WORKS GREAT
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Reviewed in the United States on August 6, 2025
D
Verified Purchase
Denise F.
West Palm Beach, US
★★★★★ 5
Good price
Size: CB-M03H
Good price appears sturdy good instructions
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2026

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