How can you connect a 230V 27A single phase European appliance whose cable contains brown blue and yellow-green wires to a 30A 220V breaker in the US?

Answer 1

for USA, Canada and countries running a 60 Hz power supply service.It is important that you should read see the answer to the Related Question shown below: "Can a European 230 Volt 50 Hz appliance be plugged into a 240 Volt 60 Hz wall outlet in USA or Canada?"

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Asking this type of question usually means you aren't ready to do this yourself.

If you get any detailed "how to do it" answer here, you might attempt to do something you shouldn't be doing, and that may cost someone a shock, a home fire, or their life.

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As I don't know what you are trying to power, be sure to check the frequency requirements (50/60hz) before you start. Most appliances won't mind, but better safe than sorry.

As another poster pointed out

• Green/Yellow is ground. Bare wire in the US
• Brown is hot. Black is hot in the US
• Blue is Neutral. Connect this to the Red hot wire as we can't use the US neutral. (It is a Neutral for a 120V hot.)
• If you encounter a White wire in your supply cable, cap it with a wire nut. That is the neutral for 120V we are not using in this appliance.

Also, as you are only 3A away from the limit on the circuit you may want to consider running a 40A line to this appliance. Make sure all the wiring can handle it, though, including the wiring in the device.

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As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed

If you do this work yourself, always turn off the power

at the breaker box/fuse panel BEFORE you attempt to do any work

AND

always use an electrician's test meter having metal-tipped probes

(not a simple proximity voltage indicator)

to insure the circuit is, in fact, de-energized.

IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

SAFELY AND COMPETENTLY

REFER THIS WORK TO QUALIFIED PROFESSIONALS.

Answer 2

Assuming a 4-wire connection red to one hot connector, black to other hot connector, (these usually have copper colored screw ), white to neutral (Usually silver screw) and green to ground screw (usually green).