The WDU9-300 is a wall plug-in Class 2 power supply designed for industrial and commercial applications. It accepts a primary input of 120V at 60Hz and provides a regulated secondary output of 9VDC at 300mA with a ±5% tolerance. Key electrical characteristics include a maximum primary excitation current of 50mA, a no-load output voltage of 13.70VDC, and a maximum output ripple of 1210mV. The unit is housed in a thermoplastic molded enclosure and features a 6-foot output cord with a tip-positive connector. This UL/CUL listed and RoHS compliant power supply is suitable for various non-consumer electronic devices requiring a stable DC source within its operating temperature range of -10°C to +40°C.