xgeko2

I was wondering of you guys out there running your peltier off of a pc power supply are you running it to a connector on the psu or a direct 12v line? reason why im asking is my peltier keeps drawing to much power for the connectors on my psu and it keeps melting/catching the connectors on fire.

I was thinking about putting a resister in line with the connector any help on this would be greatly appreciated.

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flak-spammer

You should always use an external PSU like a meanwell or somesuch otherwise you risk setting a fire and/or melting the wires. That's why you seem to be having a lot of issues.

ira-k

With the lower voltage TEC's I have a PSU I modded from a ATX PSU to power them at around 12vdc, with the higher voltage TEC's I have a 24v Meanwell that I use. There is a guide here in the stickies showing how to mod a ATX PSU that has at least a 25 amp 12v rail that will work pretty well.

About the smallest wire that I run on the smaller TEC's is 14 gauge multi-strand copper. I clip the TEC tails down to about a inch to inch and a half long and solder on ring terminals. I use a short bolt and nut to connect them to the PSU lines ring terminal and put a piece of heat shrink on over that. For the 24vdc TEC's I use 10 or 12 guage multi-strand copper.

With the ring terminals you can adjust them to various angles to, just use black tape on them to insulate.

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Conumdrum

Are you using standard Molex type connectors? If so they are not enuff. Look at higher power connectors. In fact, look at RC electric car connectors, they run 6-12 VDC and very high current. Any quality hobby shop will have them. Or Horizon Hobbies on the web.