Well... maybe a little. You got to start somewhere.

Show us how its done.

The shunt as it is being called is used in many cases to allow 120 volts through at all times to keep the windings in the compressor warm. I is a cheap way to have a built in crankcase heater. Class for today is over.

Its user free

I always stock 2 pole contactors and wire them, for friends and family, as a single pole. If they ever go bad, I just use the other pole the next time they call me back. Bosses don't like this practice because you can't sell a new contactor when you have to go back.

The price difference is like $1.80 single vs double.

There really is a good reason why manufacturers started using a single pole but I'm drawing a blank as to why. If I remember I'll post it later.

Oh, I did remember. Manufactures actually found a single pole was more reliable than a double and cheaper too. Only 2 points to foul out. Only 2 points for an earwig to crawl under and a bit cheaper t0o manufacture. A two pole contactor actually has 4 point of contact, two on each pole.