The product adopts the oxidized and insulated wire, which is tightly wound on the porcelain tube and fixed on the metal bracket.
This product applies to circuits which is below 50Hz, 380V, below DC 440V. It plays the role of control circuit by changing its own resistance.
It can be used as a current and voltage regulator for research and demonstration in the laboratory, as well as for excitation and speed control of power generation equipment and DC motors.
Your satisfaction is our priority. If there is any quality problem of our product or you are not happy with your purchase in our store, please kindly contact us and we are always ready to help.
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