![]() The other thing to consider is the length of the wire run from the panel to the compressor. You can't get 240V's by feeding L1 and L2 off the same buss bar in the panel. A 240V breaker needs to connect to both buss bars in the panel. If not you may need to use duplex breakers on some of the other circuts in the panel to make room. ![]() You need to have an open space, really two with full sized breakers. You'll have to add a 240V breaker to your panel. Meaning that the breaker it's connected to should not feed anything else. That compressor should have a dedicated circut. The pin configuration makes no difference as long as its rated for your voltage and load. The L shaped terminal should be connected to the center wire of a flat moulded cord. Generally, the dryer cord will have left to right L1-N-L2. The plug alone is probaly 3x the cost of the dryer cord, plus the wire. There are male 30A plugs that you can wire your own 10/3 wire to. That dryer cord is fine, but they only come in 6' length max. The first pic is a standard 30 A outlet for an electric dryer. Going bigger on wire size is ok, just a waste of money, but don't go smaller than listed. You could fuse a 20 amp compressor with a 20 or 30 amp breaker as long as you use #10 wire from the outlet back to the breaker. If the motor only draws 20 amps max then you can size the powercord to #12 wire. Size your power cord by amp draw of the motor. That outlet you have pictured is 30 amp rated and should be wired with #10 wire 10/3 no ground to the backside. That motor should be pre wired 240, by moving the terminal wiring it can be converted to run on 120. So red to black 240, black to white 120 and red to white 120. Properly wired your meter will read 220 to 240 between the two top terminals, and will read 110 to 120 between either top terminal to the bottom. Neutral runs back to ground at the service panel. There is no seperate ground- green wire in that circut. On a 240 vac outlet the two terminals on the top in the pic are L1 and L2, black and red wires usually. The manual says, "on models not supplied with a power cord, the electrical power must be wired into the pressure switch by a licensed electrician." I'm not sure what these are for, but I'm assuming they're for the pressure switch. In the pic the black arrow is pointing to chasis ground, the red is pointing to one of the open lugs, the white wire from the on/off switch is attached to one of the lugs on this group, and the blue wire is pointing to the other 2 open lugs. It says voltage spread 208-240, so I'm assuming that means 220 is ok? I'll post some pictures of the terminal board if someone can help me it would be much appreciated. There are 3 terminals open to use, but I just don't know which ones to use. I looked in the owners manual to try to find out what I needed, but all the manual says in regards to wiring is "get professional electrition to install wiring." It doesn't look that difficult. I just bought a kobalt 60 gallon air compressor, and didn't realize till I got it home that it didn't come with a plug already wired to it.
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