Astec DS450-3 450W power supply.
The DS450 series bulk front end AC power supplies accept a wide range 90–264 Vac input . Rated at 450 watts and 550 watts respectively, the DS450 and DS550 have a typical full load conversion efficiency of 84%. Standard features include active current sharing, internal ORing FETs and an EEPROM for storing service data to facilitate efficient field replacement. An I2C communication interface is provided for the FRU EEPROM data.