Ea elektro automatik ea ps 8000 dt single output variable dc power supplies ea elektro automatik 09200143 this 640w single output variable dc psu from ea elektro automatik is a high quality power supply unit which is equipped with a host of excellent features including the overvoltage protection op overtemperature protection ot four digit displays for voltage and current status indication via leds and display remote sense with automatic detection and analogue interface with ui monit