C Series Molded Case Circuit Breaker Frames, K Frame(3 Products)
EATON

• 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.

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

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

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

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

Q. How to maintain these frames?

A.

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