Amps: 400A , Frame Type: KD , Number of Poles: 3 , Voltage: 600V
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.
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.