UNO-PS/1AC/24DC/60W DIN-Rail Power Supply: 24 VDC, 60 Watt with universal 85 to 264 VAC, -25 to 70?C extended operating temperature. Perle Industrial-grade Power Supplies are designed to stand up to extreme temperatures, surges, vibrations, and shocks found in industrial automation, government, military, oil and gas, mining and outdoor applications. UNO 24v power supplies are hardened to provide superior reliability in extended operating temperatures from -25 to 70C.