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COTEK AK-650 Switching Mode Power Supply

Always Power Ready.


AK-650-05, AK-650-12, AK-650-15, AK-650-24, AK-650-27, AK-650-48
Main Features
  • Programmable output voltage and output current
  • Parallel connection with current sharing
  • Serial connection
Rated Power 500W; 600W; 600W; 648W; 648W; 652W
DC Output Voltage 15V; 12V; 15V; 24V; 27V; 48V
DC Output Quantity Single
Rated Current 100A; 50A; 40A; 27A; 24A; 13.6A
Ripple & Noise (Max.) 150mVp-p
Input Voltage Range 90~264VAC, 127~370VDC
Inrush Current (Typ.) 27A / 115VAC, 54A / 230VAC
Function Auxiliary power; Remote ON/OFF control; Power OK signal; Output voltage trim; Output current trim;
Parallel Connection Yes
Protection Over Load / Over Voltage / Over Temperature / Short Circuit / Fan Failure
Cooling Load and temperature control fan
Efficiency 83%; 88%; 88%; 90%; 90%; 91%
Operating Temperature -25~60℃
Storage Temperature and Humidity -40~85℃, 10~95%RH
Safety TUV / UL / CE
Dimension (WxHxD) 127x41x249 mm
Weight (Net) 1.68kg

AK-650 Features

  • Universal AC input / Full range
  • Programmable output voltage (30%~105%)
  • Programmable output current (40%~105%)
  • +5V / 0.5A auxiliary output
  • Forced current sharing at parallel operation
  • Power OK signal
  • Remote ON / OFF, Remote sense function
  • Protection: OVP, OLP, OTP, Fan failure


  • Do not open or disassemble the Inverter. Attempting to do so may cause risk of electrical shock or fire
  • We guarantee this product against defects in materials and workmanship for a period of 24 months from the date of purchase. In case you need to repair or replace any defective power inverters, please contact
  • This warranty will be considered void if the unit has been misused, altered, or accidentally damaged. We are not liable for anything that occurs as a result of the user’s fault


  • *Please NOTE: Due to the impact of COVID-19, order deliveries may be temporarily delayed. US orders will be processed for shipment within 1-7 business days; International orders will be processed for shipment within 5-10 business days. Partially international orders are stopped.
  • We are proud to offer free shipping to the Continental US for orders over $50
  • Orders are processed in 72 hours
  • All shipping fees are non-refundable. There is no circumstance where shipping fees will be refunded. This is the opportunity cost of the customer.
  • Missing Items: If you think an item is missing from your order, you must contact us within three (3) days of receiving the package as indicated by the tracking number.
  • Please contact us at


We accept order cancellation before the product is shipped or produced. If the order is canceled you will get the full refund. We cannot cancel the order if the product is already shipped out.

We accept the return of products. Customers have the right to apply for a return within 14 days after the receipt of the product. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer.

All returned products are subject to a 20% restocking fee and the return shipping must be pre-paid.

Please contact us at



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