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AC-DC Adapter ( Programming Digital PFC Power Supply)
Model: S1200 v3.0

Before make a purchasing power supply decision, do you consider power efficiency and size? higher efficiency can save energy and electric charge, at the same time smaller size not only easy to take but also save more shipping cost.

As far as large power of 1200W, efficiency and size is more important than small and middle power adapter.

Efficiency=Pout/Pin*100%, Pout=Vout*Iout
for S1200, Pout=24V*50A=1200W
If efficiency=94%, means consumptive energy is 72W---1200×(1-0.94); if it is 85%, it will be 180W.

Active PFC will improve the enery consumption from main power grid evidently.
For ouput 1200W power supply, if averarge efficiency is 92%, PF is 0.99, the energy from power grid is 1200/0.92/0.99=1317.5W,
if efficiency is 85%, PF=0.7, the energy is 2016.8W. the surplus 699.3W (2016.8-1317.5) will be wasted as heat, and increase the power grid load.

S1200 - 24V 50A - programming digital power supply is released now, optimize design repeatedly in past 14 months, the power supply reached up to 94% at 60% of load and AC220V, ultra low power consumption make sure its internal temperature under 60℃ and realize components' performance.

Active PFC, Synchronous Rectification, ZCS and ZVS full bridge topology applied to powerful S1200.


Especially, S1200 can output 1200W evan more at 90V AC, and get a converting efficiency of 86.85% at full load.

AC 90~265V input, no matter where you are, S1200 can work perfectly. it is also equipped with both US / Japan and Europe AC plugs, world wide use need not any alternative switcher.

Adjustable output voltage from 11.5V-24.5V is convenient for most of applications. Connect to any DC charger which is supposed to be powered by DC 12V~24V, the S1200 will provide up to 55 Amps 1200 Watts maximal.

S1200 power 3 chargers simultaneously video on youtube.

Testing report in Germany by (907K) .

Testing report in German by


  1. Digital display output voltage and current on time.
  2. Over current, over voltage, over load and over temperature protection. Resume automatically when troubleshooting.
  3. Short-circuit protection on output, safer and more reliable.
  4. 3 Intelligent cooling fans turned on at over 50℃
  5. 3 outputs can do more chargers simultaneously.
  6. High power density: 521W/Kg
  7. Approved by CE

Input/Output Specifications:

  1. Input Voltage:   AC 110V/220V, 50/60Hz
  2. Range Voltage: AC 90-265V, 47~63Hz
  3. Max Current : 15A @90VAC, 6.0A @ 220VAC
  4. Efficiency: 94% at 60% load and 220V.
  5. Active PFC: PF>0.99 at 90VAC, 100% of load
  6. Output Power:   1200W MAX.
  7. Output Voltage: 11.5V~24.5V adjustable
  8. Output Current: 0~50A(55A MAX.)

General Specifications:

  1. Operating Temperature:   0~50℃
  2. Storage Temperature:      -20~85℃
  3. Operating Relative Humidity: 5~95%RH
  4. Withstanding Voltage:   AC 2000V(Min),5mA(Max)
  5. Insulation Resistance:   DC 500V  100MΩ(Min)

Mechanical Characteristics:

  1. Dimension: 265*170*68 (mm, L*W*H) or 10.0*5.7*2.7 (inch)
  2. AC Plug: Customized according to your demand
  3. Case Material : AL alloy
  4. DC output : three pairs 4mm gold banana jack
  5. Net weight: 2.3Kg without input cable.

Safety Certification:CE

S1200 is fully committed to compliance with the European Union’s RoHS directive.

4mm gold banana output connector
AC plug can be customized
Efficiency Curve at AC90V and 220V Input for S1200

Click model for other power supply:

A1, A4, A6, A8, A12A20, A30, A164 , S400, S600, S1500




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