Spec Sheet
Power supply panel diagram:
Model:W-UL 12VDC-18P/20A, 12VDC means that the output is 12V DC,18P/20A means
18channels output, and the total current is 20Amps.
1. Power switch,used to control circuit opening and closing
2. Input(DC),12VDC/20A
3. 18channels output(DC+),respectively connect to the positive pole of the load
4. 18channels output(DC-),respectively connect to the negative pole of the load
5. LED,it lightens when power supply works normally
6. LED,when a channel output in fault,the corresponding LED indicator goes out individually
7. PTC,individually controls each channel,automatically recovers after troubleshooting.
Installation method:
● Take out equipment from packing, check out its appearance. Power box should be installed
under the environment avoiding sunshine, rain water and damp.
● Put switch to "OFF".
● Connected load to 18channels output, especially pay attention to the polarity.
● Connect power cord to the outlet, input 110V / 220V AC.
● Put switch to "ON", and the green LED lightens.
● Close box door with screws.
Daily maintenance:
● The power supply should be used under the circumstances satisfying to it works normally.
● Power box should be wiped once a month and it’s better to use alcohol to wipe after
moisture volatilization.
● Do not place clog(over 5kg) on the power box.
● Power box can not be converted or lay on side.
● Please put the power in a cool and dry place when it not used for long time.
W-UL 12VDC-18P/20A
CCTV UL Rated Power Supply




