Reddit reviews uxcell a12080600ux0947 Bimetal Temperature Control Switch Thermostat (Pack of 10)
We found 1 Reddit comments about uxcell a12080600ux0947 Bimetal Temperature Control Switch Thermostat (Pack of 10). Here are the top ones, ranked by their Reddit score.
Product Name : Temperature Control Switch;Model.No : TLRS9700;Material : Plastic, BimetalContact : NO;Rated Voltage : 250V;Current : 5AMax Rated Disconnection Temperature : 40C;Color : Silver Tone, BlackCable Length : 6.5cm/ 2.6";Head Dimension : 20 x 8 x 3mm / 0.79" x 0.31" x 0.12"(L*W*T)Net Weight : 31g;Package Content : 10 x Temperature Control Switch
The two power supplies as far as the peltiers 'see' is the same thing as having one big one. I do think it may prove to be simpler wiring this way though, as you don't really want to mess with a bigger gauge wire than 8. I agree 8-10 is fine for this, I wouldn't go smaller. Make sure everything is fused.
Just think about what happens if the peltier gets too hot, would be good to have a way to trip the system and prevent things from going bad fast. The good news is thermal switches are not that expensive
edit: I think these are all normally-closed, you can select the temp you need. Make sure to analyze whether you need a normally-closed or normally-open switch for how you want to trip your system.
these ones are only rated for 5A, would be nice to have a few in paralell that could trip the whole unit off at a certian level - if it was a computer power supply you could use a bunch of normally-closed ones in series and use that on the pin that allows the PSU to turn on. Can also have one for each peltier and they can turn themselves on and off dynamically.