The Mean Well HDR series of ultra-thin DIN-rail power supplies features a step-shape design and plastic housing that can be installed on TS-35/7.5 or TS-35/15 mounting rails. An ac input of 85~264 Vac (277 Vac available) and a no-load power consumption of <0.3 W allow for high-efficiency operation between -30 and 70 °C with added overload protection. The series comes with both UL 60950-1 and UL 508 safety approvals and are suitable for industrial control systems and factory automation.