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 and TRIO 48vDC power supplies are hardened to provide superior reliability in extended operating temperatures from -25 to 70C. Why UNO and TRIO Power Supplies are the preferred choice: Maximum energy efficiency, thanks to over 90% efficiency and extremely low idling losses Maximum operational reliability thanks to high MTBF (mean time between failures) and high dielectric strength More space in the control cabinet with up to 20% higher power density Flexible mounting by simply snapping onto the DIN rail Rugged design with metal housing