Spec Sheet

Technical specifications：
Model W-UL 12VDC-18P/20A
Specification 250W12V20A18P
Shape Dimension 28.0×20.8×8.7cm
Input
Input Voltage 110/220VAC
Input Voltage Frequency
50Hz～60Hz
Average Input Current 100Vac≤3.0A
Efficiency ≥80%
Output
Output Voltage 12VDC±5%
Output Current
20A，18channels for 18 sets load
Output Ripple Noise
（Vp-p）
80mVp-p@25℃/
Rated input voltage & Output rated load
reply time of starting up
≤3S Input 100Vac，Output rated load
Fuse Type /Rating PTC 1.6A/60V
Protection
Over voltage protection
When over voltage occurs, it will switch to
self-protection status to protect the load.
Over current protection
When over current occurs, the
corresponding channel output will
automatically switch to self-protection
status, and the other channels output work
normally, when clearing of fault, it switches
back to normal.
short-circuit protection
When short-circuit occurs, individual PTC
fuse will break the circuit, when clearing of
fault, it switch back to normal
automatically.
Circumstances
Working Temperature 0℃～+50℃
Storage temperature
-20℃～+80℃
RH 20％～90％
Heat release Natural heat dissipation
Connection
Input Three-pin socket
Output 18channels output
Dielectric Strength
Input to output 1500Vac/60S leakage current≤1.5ma
Input to FG 1500Vac/60S leakage current≤2.0ma
FG to output 500Vac/60S leakage current≤1.5ma
Insulating strength Input to output ≥20MΩ/500VDC@25℃
Leakage Current
≤0.12ma @AC110V（220V）/25℃
RG ≤0.011Ω@DC8V/25A/25℃
Inspection
Equipment
YF9901 Digital Power Meter MW –MOS-620 20MHz Oscillograph
DZ2672A Hi-pot Tester VC9802A DMM
IT815 300W/0-120V Electronic Load DZ2620 Leak Resistance Tester
WB2678A RG Tester
W-UL 12VDC-18P/20A
CCTV UL Rated Power Supply