The 6EP1437-3BA10 from Siemens is a SITOP PSU8200 stabilized power supply. It is a three phase AC input SITOP modular unit with 24V/40A output. The compact design of the primary switched mode power supply requires only a small mounting surface. The rugged metal enclosure is suitable for harsh industrial applications. The standard mounting rail fixture is made of metal. Mounting is therefore fast, easy and vibration-proved. Reliability and quality are further characteristics of the electronic design.