How to Connect Two 12V AC Adapters to Get 24V DC


12V AC adapters are relatively inexpensive, but 24V AC adapters are often more than double the price. By connecting two 12V adapters, you can achieve the 24 volts of current you need without the extra cost. You will be connecting the two adapters in series, which combines the voltage of the two adapters into the total of both without increasing the amperage. If both individual adapters provide 6 amps, for example, they will still provide 6 amps total when connected in series.

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