You will never know the significance of a step up transformer in your life until you travel from Europe or Asia to the US where electrical outlets are 110 volts. The step up transformer will be your lifesaver when you need to use your 220 volt devices in a 110 volt country. This type of transformer can be used safely with most household appliances, like microwaves and refrigerators, and other electrical devices, like power tools, video consoles, hair dryers, media players, mobile phone chargers, and stereo systems.
A step up transformer is a must-have when traveling abroad, especially to the US. However, you need to make sure to get the right type of transformer for your needs. For versatility, most travelers prefer a step up and step down transformer, which can work in either 110 volt or 220 volt countries. This way, you can have something to power your devices, no matter where you are.
Many step up and step down transformers range from 50 watts to 20,000 watts. When choosing a transformer, make sure that there is at least a 100 percent margin for a power surge to occur. Items like computer monitors and televisions surge when switched on. Hence, you need a voltage transformer with three times the capacity of these items. A margin of four times is recommended for power tools, laser printers, microwaves, toasters, and halogen bulbs. Consider buying a step up and step down transformer that has a higher rating than the listed wattage on your devices.
Voltage transformers can convert single phase 220 and 110 volts. American 220 volt transformers often have two phases of 110 volts, while European 220 volts have a phase of 220 volts. Avoid running any appliance with a higher wattage than the step up or step down transformer’s wattage because this could damage both the transformer and the appliance.