Siemens sitop flexi din rail mounted psu siemens 6ep1353 2ba00 a din rail mounted switch mode power supply from the sitop range that has an adjustable output voltage of 3 to 52v dc with adjustment being made either by the onboard potentiometer or remotely by analogue signal the psu is ideal for applications requiring a non standard voltage siemens 6ep1353 2ba00 sitop flexi din rail mounted psu