Using European 230V 50hz Appliances in the US. johandj73. Jul 11, 2012. In summary: South Africa is rated 230V 50Hz. Your electrical equipment may not work in the US if it is not rated for 240 volts. You will need to purchase a transformer to use your 220V appliances in the US. It would be best to buy the appliances you need in the US and then ... More @Wikipedia
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