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220V 1.5kW 3-step relay voltage regulator without breaking the circuit at the time of switching steps. Maintaining the output voltage in the range of 200-225V when the input voltage varies from 140 to 225V. Has an emergency shutdown mode at voltages below 140V and above 245V. Indication of the input voltage with a three-color LED: 140-170V - red, 170-200V - yellow, above 200V - green, voltage below 140V - blinking red, voltage above 245V - blinking green.

Oct 19,2018
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