Extractor fan without overrun

Extractor fan without overrun

With Switch

Preparation:
neutral conductor N – blue
phase LT – usually black or brown

Connection:
The phase LT is with a switch and conducts if the switch is closed. When the switch gets closed, the fan starts to work.
The neutral conductor gets connected to the point N of the fan.

Explanation:
The
fan starts when the switch gets closed (phase LT). As long as the
switch is closed the fan is working. After opening the switch, the fan
stops working automatically.

Schematic:

Without Switch

Preparation:
neutral conductor N – blue
phase L – usually black or brown

Connection:
The phase L is without a switch and always conducting.
The neutral conductor gets connected to the point N of the fan.

Erläuterung:
The fan is running permanently (24/7) because there is no switch.

Schaltbild: