Hi
I looked at a contactor schneider ict 4 pole 400v 25a. The fault was a loud knocking noise coming from the electricial riser cupboard.
I suspected one of the contactors was pulling in and out rapidly (this known as chattering?)
I am hoping you can point me in a direction as I'm not massively contactor experienced.
The contactor is for 4x 16a ceiling heater circuits. There is a control circuit with timeclock bringing on all contactors for a shop. There is a Sunvic Tlm2453 Room Thermostat controling the heaters.
My question is which is more likely to to be the fault, the contactor or thermostat. The chattering is happening when the thermostat is reading near the set temp. When I set thermostat up to about 28°c the contactor stopped chattering completely. But when its set around 20-21°c (near room temp) it will happen.
Is there a component in the thermostat that could cause this. Simular to like faulty pir sensor relay clicking and causing lighting to flash constantly?
Many thanks
I looked at a contactor schneider ict 4 pole 400v 25a. The fault was a loud knocking noise coming from the electricial riser cupboard.
I suspected one of the contactors was pulling in and out rapidly (this known as chattering?)
I am hoping you can point me in a direction as I'm not massively contactor experienced.
The contactor is for 4x 16a ceiling heater circuits. There is a control circuit with timeclock bringing on all contactors for a shop. There is a Sunvic Tlm2453 Room Thermostat controling the heaters.
My question is which is more likely to to be the fault, the contactor or thermostat. The chattering is happening when the thermostat is reading near the set temp. When I set thermostat up to about 28°c the contactor stopped chattering completely. But when its set around 20-21°c (near room temp) it will happen.
Is there a component in the thermostat that could cause this. Simular to like faulty pir sensor relay clicking and causing lighting to flash constantly?
Many thanks
