The M10-3640LED-06 three-phase variable autotransformer is designed for smooth voltage adjustment in three-phase systems. This model operates with an input voltage of 3×400(380) VAC, 50–60 Hz, and provides an adjustable output voltage range of 3×0–450(430) VAC at a maximum current of 3×8 A. With a rated power of 6000 VA, it is suitable for applications requiring stable, manually adjustable three-phase supply voltage.