Ea elektro automatik ea psi 9000 rack mount programmable power supplies ea elektro automatik 15200774 this rack mount programmable psu 300v 50a from ea elektro automatik has been designed with a host of state of the art features and is an ideal choice for the laboratory or complex industrial application among the many features is the flexible output level with the option of high voltages and high currents in one device while rounded off with microprocessor controlling and digital operating