Key Specifications Parameter Value / Description Manufacturer Omron Automation and Safety Series S8FS-G Product Type Switch Mode Power Supply (SMPS) Power Rating 50 W Rated Output Power 40 W Output Voltage 5 VDC Rated Output Current 8 A Output Voltage Adjustment Range -10% to +15% (via V.ADJ) Ripple & Noise 40 mV(p-p) max. Efficiency 81% typ. (100 VAC input) / 82% typ. (200/230 VAC input) Input Voltage (Rated) 100 to 240 VAC Input Voltage (Allowable) 85 to 264 VAC (single-phase) / 80 to 370 VDC Frequency 50/60 Hz (47 to 450 Hz) Rated Input Current 1.1 A (100 VAC) / 0.62 A (200 VAC) Inrush Current (Cold start) 14 A (100 VAC) / 28 A (200 VAC) Leakage Current 0.5 mA max (100 VAC) / 1 mA max (200 VAC) Hold Time 14 ms typ. (100 VAC) / 75 ms typ. (200 VAC) Start Up Time 1000 ms max Load Regulation 1.0% max Line Regulation 0.5% max Overload Protection Yes (automatic reset) Overvoltage Protection Yes (input shut-off, re-input required) Overheat Protection No Series Operation Yes (up to 2 units with external diodes) Parallel Operation No (backup operation possible with external diodes) Output Indicator Green LED (DC ON) Construction Type Enclosed (Covered) Terminal Type Screw terminal block (with screw-dropout prevention) Mounting Method DIN rail mounting Cooling Fan No (fanless, natural air cooling) Dielectric Strength (Input to Output) 3 kVAC for 1 min Insulation Resistance 100 MΩ min (at 500 VDC) Vibration Resistance 10 to 55 Hz, 4.5 G, 0.375 mm single amplitude Shock Resistance 150 m/s² Altitude 3000 m max Ambient Temperature (Operating) -20°C to +70°C (with derating, no freezing/condensation) Ambient Temperature (Storage) -25°C to +75°C Ambient Humidity (Operating) 90% RH max Life Expectancy 10 years min (at rated input, 50% load, 40°C max, standard mounting) Dimensions (W x H x D) 97 x 36 x 99 mm (approx.) Weight 300 g max