Siemens din rail mounted sitop psu100m power supply 6ep1336 3ba10 siemens 6ep1336 3ba10 p the siemens 6ep1336 3ba10 is a compact dc dc converter that enables a cost effective network failure concept at the dc link of frequency controlled drive systems the 20a switching power supply uses the kinetic energy of decelerating motors to buffer the 24v supply until the machine has completed a controlled shutdown its high efficiency ensures an extremely effective use of the energy reserve p p