The ZWS240RC-24 ac-dc power supply is rated at 240-W output power. Certification to Over Voltage Category (OVC) III enables direct connection to the incoming ac distribution panel, saving the cost and space of an isolation transformer. Target applications include robot and other machine controllers needing a greater degree of protection from incoming input voltage line transients. The power supply accepts an 85- to 265-Vac input and can operate convection-cooled in ambient temperatures of up to 70 °C, derating linearly above 50 °C by 3.5% per °C. The 24-V output voltage is adjustable from 21.6 to 26.4 V to accommodate nonstandard voltages.