Switch Mode Power Supply


Covered type, Input: 100 to 240 VAC, Power rating 30 W, Output: 12 VDC, Terminal blocks (Screw terminal), Undervoltage alarm, DIN Rail mounting, Parallel operation, Harmonic current emissions

Power rating 30 W
Rated input voltage 100 to 240 VAC
Output voltage 12 VDC
Heat radiation Natural air-cooling
Construction Covered type
Terminal type Screw terminal
Structure Terminal blocks
Mounting type DIN Rail mounting

Item list of S8TS

  • Ratings / Performance
Power rating30 W
Efficiency73% TYP. (at rated input, 100% load)
Rated input voltage100 to 240 VAC
Allowable input voltage variable range85 to 264 VAC
80 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 curren0.7 A max.
0.4 A max.
Power factor0.8 min.
Leakage current0.35 mA max. (at single operation, 100 VAC input)
0.7 mA max. (at single operation, 200 VAC input)
Inrush current17.5 A max.
35 A max.
Output voltage12 VDC
Output voltage variable range-10 to +10% (With V. ADJ)
Ripple2 %(p-p) max. (Under the rated I/O conditions.)
Static input variation influence0.5% max. at 85 to 264 VAC input, 100% load
Static load variation influence2% max. Single operation, rated input, 10 to 100% load
Rated output current2.5 A
Start up time1000 ms max.
Hold time20 ms min.
Overload protection105% to 140% of the rated output current (Single operation), Inverted L voltage drop, Automatic reset
Overvoltage protectionOperated at 120% min. of the rated output voltage, Shut-off
Resetting: Reset the power by turning it back (OFF time: at least 1 min)
Undervoltage alarm outputYes (open collector output), 30 VDC max., 50 mA max.
Parallel operationYes (Up to 4 Power Supplies)
N+1 redundant systemYes (Up to 5 Blocks)
Series operationYes
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 MΩ min. (at 500 VDC)
Vibration resistance10 to 55 Hz, 0.375 mm single amplitude in each 3 directions for 2 hours
Shock resistance150 m/s**2, in each 6 directions 3 times
Output indicatorYes (color: green)
Heat radiationNatural air-cooling
ConstructionCovered type
StructureTerminal blocks
Terminal typeScrew terminal
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.


Switch Mode Power Supply


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