SKU: 70083907804

Eaton Cutler-Hammer KDB3125 125A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VAC

Sale price$854.55 Regular price$949.50
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Description

Eaton Cutler-Hammer KDB3125 125A 3-Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VACThe Eaton Cutler Hammer KDB3125 is a reliable K frame molded case circuit breaker engineered to provide dependable protection for commercial and industrial electrical distribution systems. Featuring a thermal magnetic non interchangeable trip unit, this breaker offers consistent overload and short circuit protection while maintaining a fixed trip configuration suitable for stable system requirements. Rated at 125 amperes at 40C, the KDB3125 delivers

The Eaton Cutler-Hammer KDB3125 is a reliable K-frame molded case circuit breaker engineered to provide dependable protection for commercial and industrial electrical distribution systems. Featuring a thermal-magnetic non-interchangeable trip unit, this breaker offers consistent overload and short-circuit protection while maintaining a fixed trip configuration suitable for stable system requirements. Rated at 125 amperes at 40°C, the KDB3125 delivers strong interrupting capacity for both AC and limited DC applications. Its bolt-on mounting configuration ensures secure installation in panelboards and switchboards, while standard aluminum line and load terminals simplify wiring and provide dependable electrical connections.

Product Specifications

  • Brand: Eaton / Cutler-Hammer
  • Model: KDB3125
  • Breaker Type: Molded Case Circuit Breaker (MCCB)
  • Frame Style: KDB (K-Frame)
  • Rated Current: 125 Ampere
  • Number of Poles: 3 Pole
  • Trip Unit Type: Thermal Magnetic Non-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: KDB Series
  • Model Number: KDB3125
  • Current Rating: 125A
  • Number of Poles: 3
  • Connection Type: Bolt-On
  • Terminal Type: Aluminum Line and Load End Terminals Included
  • Application: Electrical panelboards, switchboards, and industrial 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 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: 70083907804

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Product Reviews
J
Verified Purchase
Justin B.
San Leandro, US
★★★★★ 5
Sturdy, worked well
Holds it sturdy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 21, 2025
B
Verified Purchase
bms
Belleville, US
★★★★★ 5
Solid as described
Value for money and easy installation
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Reviewed in the United States on October 4, 2025
R
Verified Purchase
Ruby salas
Phoenix, US
★★★★★ 5
Great choice to save space
Color: Black, Color: Black
Works really well. Installation is simple with included hardware. Upgraded my laptop and was able to fit thicker laptop. Glad i saved space on small desk. Extremely sturdy and great price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
D
Verified Purchase
Dell Conagher
Grantham, US
★★★★★ 5
Pretty cheap but surprisingly solid
Color: Black
This thing comfortably fits my 16” MacBook Pro. It does tilt a bit probably due to me screwing it to the underside of my wooden desk which probably isn’t the exact use for it, but it holds really strong and isn’t going anywhere. Combining this with a small USB-C hub for some USB As and and extra HDMI and a little bit of Velcro, this holder makes for a pretty solid option to hide you laptop away if you a surprisingly clean desktop-like experience, even if you’re on a budget and can’t afford a desktop. A proper thunderbolt docking station would go a long way with this as well.
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Reviewed in the United States on March 16, 2026
J
Verified Purchase
JJD
Dallas, US
★★★★★ 4
Works as advertised
Color: Black
Functions as described. Looks good. Laptop fits in loosely. I’d prefer a more snug fit. Other than that, works as advertised.
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Reviewed in the United States on March 19, 2026

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