The KAS series of ac-dc power supplies is rated at 2 W and 4 W. Accepting 90- to 305-Vac, 47-to 440-Hz input, these board-mounted converters will operate from 115-, 230- and 277-V nominal inputs. The series has a double-insulated Class II construction, requiring no earth-ground connection, and has a 3,000-Vac primary to secondary isolation. Available output voltages are 3.3, 5, 8, 9, 12, 14, 15 and 24 V and the no-load power consumption is less than 300 mW. The units are encapsulated in a plastic resin fiberglass case, providing additional protection against shock and vibration.