Skip to main content
Expedited shipping available at checkout

Eaton / Cutler-Hammer KD2100 Molded Case Circuit Breaker

  • 100A
  • 2 Pole
  • Unit Mount
Eaton / Cutler-Hammer KD2100
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU KD2100
Select Item Condition
Earn 2581 SuperPoints
  • 100A
  • 2 Pole
  • Unit Mount

Quantity

Bulk Pricing
Send your parts list for a volume quote.

Eaton / Cutler-Hammer KD2100 - 100A 2 Pole Molded Case Circuit Breaker

New

$2,581.00 In Stock

Quantity

Description

Built for heavy-duty industrial environments, this 100A unit-mount MCCB offers robust thermal-magnetic protection with a high 65kAIC rating at 240V. It integrates smoothly into Eaton Pow-R-Line 3a and 4 panelboards, as well as compatible motor control centers. The K-frame design includes reverse feed capabilities and an interchangeable trip unit, allowing facility managers to adapt the protection scheme as electrical demands evolve.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Series KD
Amperage 100A
Poles 2
Mounting Style Unit Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 1
AIC Rating 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC
Fit and installation
Frame Type K
Terminal Type Lugs
For Use With Eaton Series C Panelboards, Pow-R-Line 3a Panelboards, Pow-R-Line 4 Panelboards, Switchboards, Motor Control Centers
Wire Gauge 3 AWG - 350 kcmil (Al/Cu)
Max Wire 350 kcmil
Min Wire 3 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment
Accessories Line and Load Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB-1, UL 489
Approval CE, CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, Interchangeable Trip Unit

Product FAQs

6 answers
Can the Eaton KD2100 replace an older Westinghouse KD2100 breaker?

Yes. Eaton acquired the distribution equipment division of Westinghouse. The Eaton KD2100 is the direct, exact replacement for the legacy Westinghouse KD2100 circuit breaker.

Which lug kit is standard for the KD2100 circuit breaker?

The standard lug kit for the 100A KD2100 is the TA300K. This kit accommodates one 3 AWG to 350 kcmil aluminum or copper conductor per pole.

Is the Eaton KD2100 suitable for reverse-feed applications?

Yes. As a thermal-magnetic breaker without specific line and load markings, the KD2100 is reverse-feed capable and can be back-fed in compatible Eaton Series C enclosures.

What is the magnetic trip range for the 100A KD2100 breaker?

The adjustable magnetic trip range for this 100A K-frame breaker is 5 to 10 times the continuous ampere rating. This allows the instantaneous trip to be set between 500A and 1000A.

What types of equipment are compatible with the KD2100 breaker?

This K-frame breaker mounts into Eaton Series C panelboards, Pow-R-Line 3a and Pow-R-Line 4 panelboards, as well as compatible switchboards and motor control centers.

What is the difference between the KD2100 and the HKD2100?

Both are 100A, 2-pole K-frame breakers, but they feature different interrupting capacities. The standard KD2100 is rated at 35kAIC at 480VAC, while the HKD2100 is a high-interrupting version rated at 65kAIC at 480VAC.

SuperClub

Join free. Get 500 SuperPoints.

Earn points on eligible purchases and redeem them at checkout.

100 SuperPoints = $1 off.

Warranties

60-Day Warranty

Your purchase includes 60 days of SuperBreakers warranty coverage.

Get a Quote

Don’t see what you’re looking for?

We source obsolete and hard-to-find parts every day.

Shipping

Free Shipping Policy

Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.

Read our full shipping policy

Same Day Shipping

We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.

Expedited Shipments

Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.

International Shipping

All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.

Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Rating
Ratings
2 reviews
  • CM
    Corbett M.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer KD3400K - 400A 3 Pole Molded Case Switch
    I recommend this product
    Rated 5 out of 5 stars
    5/25/21
    Great pricing

    Site is easy to use, and best pricing out there.

  • JP
    Job# P.
    Flag of United States
    Reviewing
    Eaton / Cutler-Hammer KD3400 - 400A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    2/13/18
    Denis M. Fortino VP Premium Electric Corp.

    Superbreakers provides outstanding service. My thanks to Javier for tech support!