Siemens 6EP3 447-8SB00-0AY0 AC to DC Power Supply

Siemens SITOP PSU8200 power supply 6EP3447-8SB00-0AY0 is a 400–500 VAC input, three‑phase to 48 V DC stabilized output rated at 20 A, designed for industrial automation. As part of the SITOP PSU8200 family, it provides a reliable 48 V DC source for PLCs, drives, sensors, and other automation loads within control panels and machine cabinets. The unit’s enclosure measures 135 × 145 × 150 mm, enabling compact installation in standard electrical housings. This model is documented by Siemens Industry Mall under the 6EP3447-8SB00-0AY0 designation, with data sheets available for configuration and wiring guidance. It is intended for use in Siemens automation ecosystems where a stable, regulated 48 V DC supply is required from a 400–500 VAC three‑phase mains supply.