The Omron S8VK-G48048-400 is a 480 W switch-mode power supply delivering 10 A at 48 VDC from a universal 100 to 240 VAC input. That 48 V rail is common in industrial control — powers PLCs, fieldbus slices, solenoid banks, and analog I/O loops without a separate DC-DC converter. The 480 W capacity handles a mixed load of several controllers plus their I/O racks, with headroom for inrush on capacitive loads. Mounts on standard DIN rail — snaps into the same 35 mm profile as contactors and terminal blocks, saving enclosure backplane space. Natural convection cooling means no fan to fail or filter to clog. In a sealed IP54 cabinet with other heat sources, allow 10–15 mm clearance above and below the unit for airflow. The 480 W rating holds at 40 °C ambient; derate linearly above that per the thermal curve.
Certifications that matter for the specifier
Carries cULus, UL 508 Class 2, and CSA Class 2. Output is inherently limited to safe energy levels under fault conditions. VDE mark covers the German low-voltage directive. Lloyds marine certification means this unit is accepted for onboard control panels in ships and offshore installations — a rare combination in a standard DIN-rail supply. SEMI F47-0706 compliance confirms it rides through voltage sags down to 50% of nominal for 200 ms, critical for semiconductor fab tool power buses.
Power boost and parallel operation
A 120% power boost is available for 10 seconds, delivering 12 A at 48 VDC. This handles motorized contactor banks or capacitive loads during startup without oversizing the supply for steady-state draw. After the boost period, the unit folds back to the 10 A continuous rating. Supports parallel operation for redundancy or higher total current — two units can share a load with an OR-ing diode assembly. Series operation is also possible to reach 96 VDC for specialized loads, though the midpoint must be referenced to ground.