Wiring Diagram For A Fan Isolator

I explain the wiring using basic wiring.

Wiring diagram for a fan isolator. But simply replying to the ops implication that the wiring diagram was as complicated as the underground and. The idea of a fan isolator is so that the fan cannot become live accidentally during maintenance but also functionally so that you can switch off the fan without having to turn the lights off. Folks i have a project where the bathroom has an extraction fan that comes on when the light is switched on. There is nothing in the regs to say that the light must be isolated at the same time as the light switch already does this.

Read the instructions carefully before commencing installation. How to install a fan isolator switch. The isolator switch is obviously designed to switch 3 phase and neutral and has two other earth connection points. The supply for this can be taken from most existing circuits providing the switched fused unit sfu is present at the start of the installation and appropriately fused to protect the sub circuit cabling and accessories.

Wiring a bathroom extractor fan with an isolator switch. The supply is fed from a 3 core 6mm2 swa cable. In this case a common 01uf100 ohm rc mains input suppressor as well as a 250vac metal oxide varistor mov transient suppressor were used in parallel. Building control in scotland if that makes a difference is saying that there should be a high level isolator switch for the fan but the electrician has said it doesnt need one as it is not on a timer.

All work carried out should comply with all applicable wiring regulations. Hi this video is about wiring a bathroom extractor fan wiring fan to the three pole fan switch isolator and pull cord switch. Since the relay coil may produce unwanted voltage spikes into the circuit wiring which may damage the electronics in some fan units some effort has been made to suppress these. Installing the switched fan.

In this video i show how to wire a 3 pole fan isolator switch for a timer fan using 3 core earth cable and for a non timer fan using twin earth cable. Switched live and neutral going to your isolator first the rest is simple to feed to the fan all as above diagram. Incorrect installation will invalidate your guarantee. I have a 4 pole 32a rotary isolator switch which i am planning to use to isolate the supply to a hot tub.

Connect the cables as in the diagram.