A Small three-phase power supply with a harmonic filter is designed to provide the necessary DC voltage for the control circuit of the automation device. This power supply supplies voltage from 340 to 550 V with 3%%%% accuracy regardless of load. The power reserve on this power supply allows 1.5 In current to be supplied at regular intervals, enabling the power supply to have a large capacity when the inrush current of the equipment is large. Diagnostics are indicated by LEDs on the front of the product (Uout and Iout) and floating relay contacts (guaranteed/not guaranteed automation status). All products are equipped with an output voltage regulating potentiometer to compensate for line voltage drops. The power supply attaches directly to a 35 mm DIN rail.