220 Volt Circuit for Equipment From Another Country
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Circuit Requirements for Foreign Electrical Equipment: Here are some examples of electrical power here in the USA at industrial and some commercial buildings. |
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Wiring Foreign Electrical Equipment
Electrical Question: I have a system coming from another country that is 220volt single phase.
- In the country where it is made they say the wiring is A hot B neutral C Ground for 220Volt.
- My electrical guy is coming to wire 10/3 A hot (110) B Hot (110) =220V and C Ground on a dual pole breaker will the dual pole breaker Supply one 220v one neutral?
- I understand the ground part. I Am lost with the instructions and need some help.
- This new system is about 4K and runs at 5200Watts. To return it because of problems will be costly plus transportation fees.
This electrical wiring question came from: David, a Homeowner from Utah.
Additional Comments: The website looks Great but I have not found a diagram about foreign electronics single phase 220volt on USA dual electric system.
Dave’s Reply:
Thanks for your electrical wiring question David.
220Volt Wiring Foreign Electrical Equipment
- The voltage for this equipment must be fully identified because there are several power configurations.
- Here are some examples of electrical power here in the USA at industrial and some commercial buildings: 120/240, 277/480 volt. With these two examples 120 and 277 volts are circuits consisting of one hot wire, one neutral, and the ground wire of different power systems.
- Our 220-240 volt system is typically two hot wires out of phase, and in rare exceptions a 220 volt stinger leg is used in some commercial and industrial applications for motor loads. It would be best to positively identify the power specification for this equipment before connecting it to any circuit.
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Be Careful and Be Safe - Never Work on Energized Circuits!
Consult your Local Building Department about Permits and Inspections for all Electric Wiring Projects.
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I think china uses 220v singe wire. Like our 120v hot, neutral and ground. you can’t interchange.
Hi John,
Actually there are several voltage configurations, it depends on the specific application or power source. Here in the USA one power conductor wire of a single circuit may have 120, 240, or 277 volts – again, that is on just One Wire measured to ground or neutral. So it really depends on the power source and the application or what will be connected, and this is what matters most, that’s why I recommend to start with the end in mind so we can wire it right.
Dave
I have the same questions, but none of the links in the answer really help. The problem is with the show since it has A (Black – Hot), B (White – Neutral), & C (Green – Ground) wires. Should we hook the extra Red-Hot to the shower’s B (White – Neutral) to get 220V??