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How to connect the positive and negative switch of electric drill?

How to connect the positive and negative switch of electric drill?

Sep 02, 2019

Two red wires are the positive pole of the power supply, one is the positive pole of the signal, the other is the negative pole of the power supply and the other is the negative pole of the signal. Careful wiring is required. The red wire is connected to the left side of the electric drill, and the right side of the drill.


Do not connect the positive and negative poles of the power supply to the positive and negative poles of the signal. It is easy to burn down the equipment.