Switched-mode power supply with PowerBoost and TopBoost. Stand-by input for switching off the output and minimizing power consumption. DC OK contact for output monitoring. Suitable for both parallel and series operation. Natural convection cooling when horizontally mounted. Enclosed for use in control cabinets. Electrically isolated output voltage (SELV) per EN 60950-1/UL 60950-1; PELV per EN 60204.