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Eaton / Cutler-Hammer KDC3225 Molded Case Circuit Breaker

  • 225A
  • 3 Pole
  • Panel Mount
Eaton / Cutler-Hammer KDC3225
Molded Case Circuit Breaker
Brand Eaton / Cutler-Hammer
SKU KDC3225
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  • 225A
  • 3 Pole
  • Panel Mount

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Eaton / Cutler-Hammer KDC3225 - 225A 3 Pole Molded Case Circuit Breaker

Eaton / Cutler-Hammer KDC3225 - 225A 3 Pole Molded Case Circuit Breaker

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$1,975.00 In Stock

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Description

Engineered for commercial environments, the Eaton KDC3225 is a 3-pole, 225A Series C molded case circuit breaker. This K-Frame device provides reliable power distribution for heavy-duty applications. The breaker installs into Eaton Series C panelboards and motor control centers. It includes lugs accepting 3 AWG to 350 kcmil wire and supports reverse feed configurations. Featuring a 100 kAIC rating at 480VAC, it utilizes a thermal-magnetic trip unit with adjustable magnetic settings.

Specifications

Key specifications
Brand Eaton / Cutler-Hammer
Series KDC
Amperage 225A
Poles 3
Mounting Style Panel Mount
Voltage 240VAC, 480VAC, 600VAC, 250VDC
Phase 3
AIC Rating 200kA @ 240VAC, 100kA @ 480VAC, 50kA @ 600VAC, 22kA @ 250VDC
Fit and installation
Terminal Type Lugs
For Use With Eaton Series C 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, Motor Operator, Rotary Handle
Accessories Line and Load Lugs Included
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval ABS, CE, CSA, UL
Temp Rating 40C
Construction Features Current Limiting, HACR Rated, High Interrupting Capacity, Interchangeable Trip Unit, Reverse Feed, Trip-Free Mechanism, Visual Trip Indicator

Product FAQs

6 answers
What is the difference between the Eaton KD3225 and KDC3225 circuit breakers?

The primary difference is the interrupting capacity. The KD3225 is a standard-rated breaker at 35 kAIC at 480VAC, while the KDC3225 is an ultra-high interrupting capacity breaker rated at 100 kAIC at 480VAC. Both share the same physical K-frame dimensions and 225A rating.

What enclosures and equipment are compatible with the KDC3225 breaker?

This K-frame breaker is designed for installation in Eaton Series C panelboards, switchboards, and motor control centers.

Can I use the Eaton KDC3225 to replace an older Westinghouse K-frame breaker?

Yes, Eaton Series C breakers are direct replacements for legacy Westinghouse and Cutler-Hammer Series C breakers with matching frame sizes and specifications.

What does the LI trip function on the KDC3225 indicate?

The LI designation means the breaker is equipped with Long-Time and Instantaneous trip functions. The KDC3225 features a fixed thermal element for Long-Time overload protection and an adjustable magnetic element for Instantaneous short-circuit protection.

What type of conductors can be used with the standard lugs on the KDC3225?

The standard lugs are dual-rated for both aluminum and copper (Al/Cu) conductors, accepting wire sizes from 3 AWG up to 350 kcmil.

Can the KDC3225 be applied in direct current (DC) systems?

Yes, this thermal-magnetic breaker is rated for 250VDC systems, providing a 22 kAIC interrupting rating for DC applications.

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