Ea elektro automatik ea psi 8000 single output programmable dc power supplies ea elektro automatik 21540404 this 640w single output programmable dc psu from ea elektro automatik is a quality microprocessor controlled power supply unit for panel mounting manufactured to a high standard and equipped with a host of excellent features including wide input range with pfc remote sensor input overvoltage protection overheating protection and convection cooling the device can also be controlle