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EATON C Series Molded Case Circuit Breaker Frames, K Frame

Eaton C Series moulded case circuit breaker frames enclose the brand's 3-pole MCCBs that protect electrical circuits from overcurrent and short circuit conditions. These frames benefit the manufacturing, oil & gas and renewable energy industries.

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EATON KWC3400FA
EATON CKD3400FB
EATON CHKD3400FC
Amps: 400A , Frame Type: KD , Number of Poles: 3 , Voltage: 600V
StyleModelAIC RatingPrice
A
KWC3400F		-£19,231.72
RFQ
B
CKD3400F		35kAIC@480V£3,353.78
C
CHKD3400F		65kAIC@480V-
RFQ

Working Mechanism

  • These frames enclose C series moulded case circuit breakers that incorporate both fixed thermal and magnetic trips.

    • Fixed Thermal Trips

    • Fixed thermal trips are based on the heat generated by the current passing through the circuit.
    • The trip unit contains a bimetallic strip sensitive to temperature changes.
    • As the current increases, the bimetallic strip heats up and bends, triggering the breaker to trip.

    Fixed Magnetic Trips

    • Fixed magnetic trips use the strength of the magnetic field created by the current passing through the circuit.
    • The trip unit contains an electromagnet sensitive to changes in magnetic field strength.
    • As the current increases, the magnetic field strength increases and when it reaches a certain level, it triggers the breaker to trip.

Standards and Approvals

  • UL

Frequently Asked Questions

What is the maximum current rating for Eaton C series moulded case circuit breaker frames?

These frames can be used with Eaton C series moulded case circuit breakers having a maximum current rating of 400

What is the maximum interrupt rating MCCB these frames can handle?

Eacton C Series K frames can handle MCCBs having interrupt ratings up to 65kAIC at 480V.

How to maintain these frames?

  • Inspect the frames regularly for damages.
  • Calibrate the MCCBs (enclosed in the frame) for optimum protection.
  • Repair / replace any damaged or worn-out part.

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