Siemens sitop modular din rail power supply 24v dc 3 phase siemens 6ep1437 3ba00 the siemens 6ep1437 3ba00 is a modular din rail power supply that is ideal for use with 3 phase motors the power supply from the sitop modular product line is both powerful and stabilised making it ideal for automated machines and systems this modular concept is based on 24v basic devices with output current of 40a this device is suitable for worldwide usage thanks to their universal wide range inputs siemen