I need to control the on/off state of 6 centrifugal fans with 220v 150w/0.66A AC motors, individually. Previously I have controlled many 220v things with relays and Arduinos but they were all without earth and pretty low wattage. These fans have a 3 pole earthed wire (see picture below) and do pull a few more watts than I usually work with.
In the picture below is one of the fans, showing how the wires on the right come from the wall plug and connect to the motor and a 2.5uF capacitor.
Reading up on this I came across a post of someone looking to relay control a 1500w water heater who is recommended to use a relay with 2 poles and even to use another relay to control this relay.
I have a good number of these chinese manufactured relays that I was hoping to use:
In the above mentioned stackexchange post chinese relays were labeled pretty much as accidents waiting to happen..
So, my questions are - does anyone here have any experience with this, know what kind of relays I can use and how I wire the 3 pole wire to the relay?
I am looking to do this on a small budget but not electrocuting anyone is offcourse higher priority ;)