What color is the phase wire?
What phase wire if the color of one is red and the other is black?
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What phase wire if the color of one is red and the other is black?
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Hello! The question is a little incorrect. If you have two wires at the output: black and red, then there is no “phase" or "zero" wire, because this is most likely direct current. In the DC circuit, a wire with a black color of this “-“, and with a red one - “+”. Despite this, our Chinese friends can sometimes surprise you with unpleasant surprises and create custom color markings. It is better to send a photo with your individual case in order to find out the answer exactly.