Hello. I have purchased couple of bathroom extraction fans from Mingfans in Auckland to install in our bathrooms each. I will pass these onto the sparky to install and do the ducting as we have other work we need sparky to complete on the house but out of curiosity I wanted to test suction performance and noise so when I opened it all up, the end plug has a 4 pin connector in total. We did get timers installed in both fans set to 10 minutes. I emailed the company and they advised of below.

"Just cut that plug as that plug is special we have for testing and will have four cords of wire. black , brown, blue and earth and then your electrician wire to that wire with box will do

Black to constantly 240v all time
Brown to switch
Blue is N "

I am sure the sparky will understand once I pass it to them but incase they did not, I assume that either sparky will replace the connector plug with a new one or they will remove the plug altogether and hard wire it to main and switch on wall in the bathrooms?