Tdk lambda enclosed power supply sws300a and sws600l series tdk lambda sws 600l 48 the tdk lambda sws 600l 48 is an enclosed single output general purpose power supply from the sws600 series this 48vdc 13a low cost power supply meets all the requirements of iec61000 4 the sws 600l 48 has been designed to withstand 30kv ac between input and output applications include factory automation process control nc machining automotive packaging equipment materials handling chemical processing