What is a power supply? (not computer-wise)

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There has been this box in one of my outlets that has been here since I moved in and just now took it off and it says it’s a Class 2 Power Supply. Not an electrician, but why is it there?

In: Technology

4 Answers

Anonymous 0 Comments

Its kinda in the name, it supplies power

Generally its used to refer to things that take power from the wall and convert it into a low DC voltage that most of your electronics use like USB power supplies or the power bricks that feed laptops.

A Class 2 power supply feeds low voltage DC to some device downstream. The Class 2 refers to a National Electric Code(NEC) rating which limits the max power, voltage, and current that can be provided by the supply so that its outputs are relatively safe to touch which is a good feature for things like Laptop chargers where an average untrained person is going to have access to the live DC connector.

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