TCM-1220PS WEB 2
TCM-1220PS WEB 2
TCM-1220PS WEB 2
TCM-1220PS WEB 2
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TCM-1220PS WEB 2
TCM-1220PS WEB 2
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Switching Power Supply 240W 12VDC – 20A


  • DC 12V 20A POWER SUPPLY – Input : AC 85-240V Switchable; Output: DC +12V (Adjustable±10%) 20A Maximum Power:250Watts.
  • High-Quality Raw Materrials – Pure Copper Inductors, High-performance Transformers, Dual-capacity Electrolytic Capacitors is The Guarantee of High-quality Power Supply.
  • Multiple Protection – With Over-voltage Protection, Overload Protectionm Overheating Protection and Prevent Short Circuit.
  • Testing & Certification – This Power Supply is Finished After 48 Hours Burn-in, and Passed the CE and FCC Certification.
  • Widely Used – High quality Switch Power Supply Widely Used in LED Strip, LED Display, Audio Power Amplifier, LED Lighting, Light Box Billboard, etc.
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ModelTechma TCM-1220PS
Input Voltage90 – 240VAC
Output Voltage12 VDC
Current20 Ampere
MaterialMetal case/Alumunium case
Working Temp.-45 C to 49 C
AC Input voltage range90-132VAC/180-264VAC, selected by switch, 47-63Hz; 254-370VDC
Input Current3.6A/115V, 1.8A/230V
AC inrush currentCold-start current: 25A/115V, 50A/230V
Leakage Current3.5mA/240VAC max
Overload protection105%-150% type:Foldback current limiting Rest:auto-recovery
Temperature coefficient±0.03%/°C (0-50°C)
Setup rise hold up time200ms, 100ms, 20ms
Vibration10-500Hz,2G 10min/1cycle, Period for 60min, Each axes
Dielectric strength1.5KVac, 50/60 Hz for 1 min between input and output
1.5KVac, 50/60 Hz for 1 min between input and enclosure
0.5KVac, 50/60 Hz for 1 min between output and enclosure
Isolation resistance100mΩ min. at 500 VDC
Working temperature humidity-10°C-60°C (Refer to output characteristic figure), 20%-90%RH
Store temperature humidity-20°C-85°C, 10%-95%RH
External dimension198x97x42 mm