PhaseThree BrandCrown Electronic TypeVariable Auto Transformer Primary Winding Voltage V440V AC + 10%Secondry Winding Voltage V0 - 470V ACSkuEL.TR1.592151Power Rating Va15AMPDescriptionVariable Transformers excellent power regulation with negligible variation in output voltage from no-load to full-load current. Supply voltage adjustment, boosting of low lines and line voltage stabilization, either manually or automatically in automatic voltage stabilizers. The primary and secondary circuits therefore have a number of windings turns in common. Since the volts-per-turn is the same in both windings, each develops a voltage in proportion to its number of turns. In an autotransformer part of the current flows directly from the input to the output. Feature:- Power Rating - 15VA, Three Phase.