Switch Mode Power Supply (15, 30, 50, 100, 150, and 240-W Models)


Covered type, Natural air-cooling, Input: 120 to 370 VDC 100 to 240 VAC, Power ratings: 100 W, Output: 12 VDC

Power rating 100 W
Rated input voltage 100 to 240 VAC
Output voltage 12 VDC
Heat radiation Natural air-cooling
Construction Covered type
Mounting type Bottom-mounting type

Item list of S8EX

  • Ratings / Performance
Power rating100 W
Efficiency82% TYP.(At 100 VAC input)
85% TYP.(At 200 VAC input)
Rated input voltage100 to 240 VAC
Allowable input voltage variable range85 to 264 VAC
120 to 370 VDC
Note at DC inputThe range for compliance with EC Directives and safety standards (UL, EN, etc.) is 100 to 240 VAC (85 to 264 VAC).
Frequency50/60 Hz(47 to 63 Hz
Rated input curren1.3A TYP. (At 100 VAC input)
0.65A TYP. (At 200 VAC input)
Power factor0.9 Min. (At rated input, 100% load)
Leakage current0.5 mA Max. (At 100 VAC input)
1 mA Max. (At 200 VAC input)
Inrush current14.1 A Max. (At 100 VAC input (For cold start at 25 CEL))
28.3 A Max. (At 200 VAC input (For cold start at 25 CEL))
Output voltage12 VDC
Output voltage variable range-10 to +10 % (With V. ADJ)
(If the output voltage adjuster (V. ADJ) is turned, the voltage will increase by more than the allowable voltage range. When adjusting the output voltage, confirm the actual output voltage from the Power Supply and be sure that load is not damaged.)
Ripple240mV Max. (Under the rated I/O conditions.)
Static input variation influence0.5% Max. At 85 to 264 VAC input, 100% load
Static load variation influence1.5% Max. At rated input, 0 to 100% load
Ambient temperature variation influence0.05 %/CEL Max.
Rated output current8.5 A / 12.8 A (Peak current)
Start up time530 ms TYP. (100 VAC input)
Hold time21ms TYP. (100 VAC input)
Overload protection100% to 110% of power boost for output current
Voltage drop, Intermittent operation, Automatic reset
Overvoltage protectionResetting: Reset the power by turning it back (OFF time: at least 3 min)
Power factor improvement functionYes
Parallel operationNo (However, backup operation is possible; external diodes required.)
Series operationYes (Up to 2 Power Supplies)
Dielectric strengthBetween all inputs and all outputs: 3 kVAC for 1 min (Detection current: 20 mA)
Between all inputs and PE terminals: 2 kVAC for 1 min (Detection current: 20 mA)
Between all outputs and PE terminals: 1 kVAC for 1 min (Detection current: 20 mA)
Insulation resistanceBetween all outputs and all inputs/ PE terminals: 100 MOhm Min. (at 500 VDC)
Vibration resistance10 to 55 Hz, 19.6 m/s**2 (2 G) in each 3 directions for 1 hour
Shock resistance196.1 m/s**2, in each 6 directions 3 times
Output indicatorNo
Heat radiationNatural air-cooling
ConstructionCovered type
Mounting typeBottom-mounting type
Weight (Main)Approx. 450 g

Do not use the Inverter output for the Power Supply. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the Power Supply may result in ignition or burning.

  • Outline drawing

Caution: All units are in millimeters unless otherwise indicated.

  • Connection diagram

Block diagram

  • Derating curve

  • Mounting

  • Mounting illustration

Mounting hole dimension


Switch Mode Power Supply (15, 30, 50, 100, 150, and 240-W Models)


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