THC connections on a Miller 625 Extream

Need help finding which wires to connect to on a Miller 625 Extream for the THC? It isn’t with the remote plug on the front. So the wires are color coded different than what was shown on the THC setup. Any help would be appreciated.

I plan on hooking up the black wire to the torch and the red wire to the work. I found this wiring diagram in the OM.

The torch is negative and the work/ground is positive. Most wiring systems the red is positive and the black is negative.

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Good call I fixed the diagram.


Did you get it to work? I have a Miller 375 X-treme that I wired up for the original crossfire but I just ordered the THC kit so I’ll need wire that in. I’m curious if you have any tips.