How to Change 110 Volt Outlets to 220

Quck answer

Converting 110 volt outlets to 220 volt requires a few steps:

1. Check the voltage: Ensure that your electrical devices and appliances are compatible with 220 volts. Some devices may only support 110 volts, so check their labels or manuals.

2. Hire a professional: Converting electrical outlets can be dangerous and may require rewiring. It’s best to hire a licensed electrician who can safely handle the conversion process.

3. Replace outlets and breakers: The electrician will replace the 110 volt outlets with 220 volt outlets and upgrade the circuit breakers to handle the higher voltage.

4. Test the outlets: After the conversion, test the outlets using a voltage tester to ensure they are supplying the correct voltage.

Remember, electrical work should always be done by professionals to avoid any safety hazards.


To change a 110-volt outlet to a 220-volt outlet, you need to rewire extensively and meet building code requirements for inspection. However, there is an alternative solution: use a voltage step-up converter. Here’s what you need to do.

Step 1

Preparation: A. Prioritize safety when working with electrical circuits. B. Determine the electrical load by finding out the power or wattage rating of the appliance you want to connect to the outlet. Consider the specific application, such as powering a window air conditioner, electric range/stove, or clothes dryer. Seek assistance from a knowledgeable customer associate at an electrical supply store or consult a qualified electrician. Converters are available for various power wattage options. For extremely high wattage loads (5,000 to 10,000 watts), it is recommended to have a licensed electrician rewire the outlet. C. Turn off the power to the outlet at the circuit breaker box or fuse box. D. Turn off the main power to the circuit breaker box or fuse box. E. Use a commercial lockout tagging device to warn others not to turn on the circuit while you are working on it. F. Determine the capacity of the cable supplying voltage to the outlet. Ensure that you have a two-wire cable with a ground wire of sufficient gauge to handle the intended load. The hot wire is black, the neutral wire is white, and the grounding wire is green. A voltage converter requires a grounded circuit, so make sure you have the appropriate cable. The wire gauge, determined by the American Wire Gauge standard (AWG), indicates the wire’s size and resistance to load over distance. Your household wiring is likely to be 12 or 14 gauge, but ensure that you have a cable with a ground wire. If you cannot find an appropriate cable, do not proceed with using a voltage converter. Remove the outlet cover using a screwdriver. Examine the wires attached to the outlet, which should include a black wire, a white wire, and a green covered or bare wire connected under a green-painted screw. Look for the cable rating (AWG) on the outer sheathing of the cable. If necessary, use a flashlight to inspect the wires closely. The cable rating is often imprinted into the plastic. Carefully place the wires back inside the outlet and reattach the outlet cover. By doing this, you can determine the wire gauge and if it is grounded. The cable used must have the appropriate rating to handle the electric load of the converted appliance to 220 volts. Incorrectly sized wires can overheat and pose a fire hazard. Proceed only if the cable is the correct size; otherwise, consult a competent, licensed electrician. G. Determine the capacity of the circuit breaker or fuse in the outlet’s circuit. If the appliance you plan to use requires a different current than what is currently supplied to the outlet, replace the circuit breaker or fuse with the appropriate rated capacity.

Step 2

To start the installation process, follow these steps: A. Carefully read the instruction and operating manuals for both the converter and your 220-volt appliance. B. Pay close attention to all safety warnings. C. Make sure that your converter is suitable for powering the appliance without exceeding its rated capacities. D. Set the converter to function as a step-up converter since you need to convert 110 volts to 220 volts. Note that different models may have different ways of setting the function switches, so refer to the directions specific to your model.

Step 3

To install the Voltage Step-Up Converter, do the following: A. Clear the area around the outlet where you plan to place the converter. If desired, you can also mount the converter on the wall. B. Connect the converter to the wall outlet using the cable provided with the step-up converter. Avoid using extension cords. C. Plug your appliance into the converter’s 220-volt outlet. Make sure the appliance is switched off.

Step 4

To test the circuit, follow these steps: A. Remove the lockout tag on your circuit breaker box or fuse box. B. Turn on the main power switch. Proceed only if the circuit breaker does not activate. C. Turn on the power to the outlet. Proceed only if the circuit breaker does not activate. D. Inspect the outlet, converter, and appliance wires visually. Proceed only if there are no signs of heat, smoke, or unusual noises coming from any of them. E. Adjust the settings of your appliance according to the manufacturer’s instructions. F. Turn on the appliance.

Step 5

If you encounter any issues, follow these troubleshooting steps: A. Turn off the equipment if the appliance does not function properly on any settings or if the circuit breaker or fuse is activated after a period of use. B. Check the cable rating, circuit breaker or fuse capacity, appliance requirements, and converter instructions to ensure you have followed the manufacturer’s instructions correctly. C. If you cannot determine the cause, consult a licensed electrician for expert advice. Do not use the outlet or appliance until you have confirmed it is safe to do so.

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