Have a need to place an extractor fan within reach of a shower so
obviously have to fit a 12V one. No problem there, but I would like it
to be humidistat switched, looking around I could only find a limited
number of examples.
Has anyone used one of the separate humidistat switches, switching the
transformer and does it cause any problems?
Or do I have to hunt for a mains powered switch with volt free contacts
and switch the 12V side?
I don't see why it should cause any problems switching the PSU.
Manrose humidistats are good (I have one) and also contain a run on
timer and auxiliary switch input to which you can wire a pull cored
momentary switch to force the fan on for a time if required.
 Use the MK disabled alarm switch for this and buy a white cord to
replace the red one. Looks like any other pull cored when done.
The PSU will probably be switch mode and not the big toroidal massive
inrush beast you may be thinking of :)
But it is worth checking - does the fan come with its PSU and if so,
does it say waht type it is?
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