Operating at 100 amps, this three-pole MCCB is a key component of Eaton's Series C K-Frame lineup. It utilizes thermal-magnetic technology to deliver precise LI protection. The breaker is designed for unit-mount installation in Pow-R-Line 3a and 4 panelboards, motor control centers, and switchboards. Capable of interrupting 65 kAIC at 240V, it ensures excellent safety. The interchangeable trip unit allows for customization, and it is fully HACR rated.
HACR Rated, Reverse Feed, Interchangeable Trip Unit
Product FAQs
5 answers
Can I use the Eaton KD3100 to replace an older Cutler-Hammer or Westinghouse KD3100?
Yes. Eaton acquired the Cutler-Hammer and Westinghouse circuit breaker lines. The KD3100 maintains the exact same physical dimensions, fit, and electrical functions across all three brands, making it a direct drop-in replacement for legacy installations.
What is the magnetic trip adjustment range for the KD3100?
The KD3100 features an adjustable magnetic trip that can be set between 5 and 10 times the continuous ampere rating. For this 100A breaker, the instantaneous trip range is 500A to 1000A.
Are there direct replacements for the KD3100 if my system requires a higher interrupting capacity?
Yes. If your application requires a higher short-circuit rating than the KD3100 provides, you can upgrade to the HKD3100 (rated 65kAIC at 480VAC) or the KDC3100 (rated 100kAIC at 480VAC). Both share the same K-Frame dimensions and mounting requirements.
What conductor sizes and materials are supported by the standard lugs on the KD3100?
The standard pressure-type lugs for the KD3100 accommodate both copper and aluminum (Al/Cu) wire, accepting conductor sizes from 3 AWG up to 350 kcmil.
Which panelboards and enclosures are compatible with the KD3100 breaker?
The KD3100 is designed for use in Eaton Series C panelboards, Pow-R-Line 3a and Pow-R-Line 4 panelboards, as well as compatible switchboards and motor control centers.
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Customers rate this product 5.0 out of 5 based on 2 reviews.