voltage types and color differentiation of industrial sockets:
The products are divided into 220V (blue) and 380V (red) according to the domestic conventional working voltage; There are 110V (yellow), 500V (black) and other unconventional voltages through voltage transformation or other forms. At present, the withstand voltage (the maximum voltage passing through the product instantly) of our plug and socket series products is generally about 1000V.

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