m building this project to remotely control my vacuum cleaner with a couple of nanos and nrf24l01 modules. I have figured out the code and wireless part. Now I need to find the best way to switch on and off my vacuum cleaner Festool CTL MIDI 110V and power consumption 400-1200W.
Ive tested (with multimeter) the power leads to the actual motor and it shows ~111-113Volts and at least ~13A spike on startup and then it settles at around ~9.3A. Blocking the suction hose sounds like you are putting more load on the motor but actually power seems to drop to ~8-5Amps (go figure :confused: ).
ve tried using "crydom" CWD2425P SSR(no heatsink) http://www.farnell.com/datasheets/1902549.pdf and it seems to work ok for a short period of time, however the relay seems to get very hot after few minutes of operation. And I dont have enough room for a chunky heatsink inside the vaccum. So now I`m thinking of using a mechanical 30A 5V relay http://www.ebay.co.uk/itm/5V-30A-High-1-Channel-Relay-Module-Level-for-Arduino-DSP-SLA-5VDC-SL-A-/161947767888?hash=item25b4d6d450:g:ocQAAOSwL7VWmMIu.
If anyone has any thoughts please share :)