+86 18824706559

New Products

OEM accepted PSU 300W 12V 25A switching power supply single output

KAIHUI 300W 12V 25A switching power supply is 88-264V input voltage and offers various output voltage between 12V and 60V.Used in industrial automation machinery and electrical instruments etc.

  • Brand:

  • Item NO.:

  • Product Origin:

  • Shipping Port:

    Guangzhou port
  • Lead Time:

    2 days for stocks; 7-10 days for samples
Product Details

OEM accepted PSU 300W 12V 25A switching power supply single output


K18N-UP300S series 12V 25A  switching power supply cooling by free air convection for 200W and 300W with 20CFM froced air;300W 12Vdc power supply have short circuit and overload protection functions;As a high price-to performance power supply solution for various industrial applications.


1, High efficiency 300W power supply,low ripple noise;
2, 300W 12VDC power supply built-in PFC function;
3, Wide range of AC input voltage;
4, 12V 25A smps have short circuit, overload, overvoltage protection;
5, Single output power supply,used in stage lighting and sound equipment.

Item NO K18N-UP300S12 K18N-UP300S24 K18N-UP300S36 K18N-UP300S48
Output Output Voltage +12V +24V +36V +48V
Rated Range 25A 12.5A 8.3A 6.25A
Current Range (Natural cooling) 0-16.7A 0-8.3A 0-5.6A 0-4.2A
Current Range(20CFM fan cooling) 0-25A 0-12.5A 0-8.3A 0-6.25A
Rated Power (Natural cooling) 200.4W 199.2W 201.6W 201.6W
Rated Power (20CFM fan cooling) 300W 300W 298.8W 300W
Ripple 200mVp-p 240mVp-p 360mVp-p 480mVp-p
Adjustable Output Range  ±10%
Output Accuracy ±1%
Line Regulation ±0.5%
Load Regulation ±0.5%
Set up,Rise,Keep up time 500ms,50ms,20ms
Input Input Voltage Range 90-264V AC
Input Range 1.6A@220V AC
Input Frequency 47-63Hz 
Efficiency >88% >88% >88% >88%
Power Factor


Inrush Current 

COLD START 20A/115V,40A/230V

Leakage Current

<0.75mA@240V AC

Protection Over Load

110~150%,Hiccup protection, automatic recovery

Over Voltage 15-18V 28-33V 42-46V 55-60V
Over Temp.,

Cover’s temp. >105℃,output closed,automatic recovery


Environment Woking Temp., Humidity -20~50℃,10~90% RH, No condensation
Storage Temp., Humidity -20~85℃,10~95% RH
Temp., Dirft
10~500Hz, 2G 10min./1cycle, PERIOD FOR 60min. EACH AXES
Safrety & EMC Standards Safety Standards EN60950-1
Withstand Voltage I/P-O/P:1.5KVAC I/P-FG:1.5KVAC O/P-FG:500VAC
Insulation resistance
I/P-O/P, I/P-FG, O/P-FG:500VDC / 100M Ohms
EMC standards
EN55022 CLASS A, EN61000-3-2,EN61000-3-3
Others Dimension 127*82*45mm(L*W*H)
Weight 0.6KG
Notes 1.All parameters 230V AC input, rated load, ambient temperature 25 ℃, measured under conditions of 70% humidity;
2. Accuracy: includes set up tolerance, line regulation, load regulation etc;
3. Ripple Test: 30cm long strands connect the power supply and the load on the load side and 0.1u and 47u capacitor; to 20MHz oscilloscope measured at the load end;
4. Line regulation: high load conditions change in the rated input voltage from low to measured;
5. Load regulation: the measured output load from 20% to 100% load change measured, other load is fixed at 60% load.

Product picture:

300W 12V 25A switching power supply

Send a message

If you have any questions,please contact us,we will reply you as soon as possible.Looking froward to our kind cooperation in the near future! Thanks!

If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!

Contact Us
Address:2F BLDG8,Standard Ind.Park,Dongchong Town,Nansha District 511453 Guangzhou Guangdong China Tel:+86 020 39934402    Fax:+86 020 39934452 Cell Phone:+86 18824706559 E-mail:amy@gzkaihui.com

Copyright © Guangzhou Kaihui Electronics Co.,Ltd All Rights Reserved

Chat now

Live Chat

If you have questions or suggestions,please leave us a message,we will reply you as soon as we can!