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tanikir

Wiring in series?

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I have some 24v cameras and plenty of empty channels on my 12v power supply. Can I simply wire two channels in a series to obtain 24 volts or would I need a new power supply?

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No, you can't. In fact, if you try, you'll likely blow the supply. For one thing, 12V power supplies are DC, while 24V power supplies are AC.

 

It's a lot easier (and safer) to use a 24VAC power supply with converters to change the voltage to 12VDC:

 

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It will depend on the design of the 12V power supply. If it is in fact just a single supply with multiple O/Ps then when you connect the +ve to -ve to series them you will actually be shorting the O/P

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