1
PSD480075
PSD 48V/0,75A switch mode
power supply desktop for CCTV
Edition: 4 from 01.04.2014
Supersedes edition: 3 from 10.03.2014
EN
Features of the power supply unit:
power output 0,75A/48VDC
*
universal AC input voltage range 90÷264V
high efficiency 87%
LED optical signalisation
standby power <0,3W
efficiency level: V
protections:
SCP short-circuit protection
overvoltage protection (AC input)
overload (OLP)
warranty – 2 year from the production date
1. Technical description.
1.1. General description.
Stabilized DC power supply is intended for supply CCTV cameras that require stabilised voltage of
48V DC.
The unit has a cable with a DC5.5/2.1 plug. The power supply unit is protected against short-circuit, overload and overvoltage.
1.2. Specifications.
Supply voltage
90 ÷ 264 V AC 50÷60Hz
Current consumption
0,38A@230VAC max.
Supply power
36W max.
Efficiency
87%
Output voltage
48V DC
Output current t
AMB
<30°C
0,75A - refer to graph 1.
Output current t
AMB
=40°C
0,5A - refer to graph 1.
Ripple voltage
100mV p-p max.
Short-circuit protection SCP
electronic, automatic recovery
Overload protection OLP
150-200% of power supply, automatic recovery
Optical signalisation
LED – presence of DC voltage
Operation conditions
temperature 0
o
C÷40
o
C
relative humidity 20%...90%, without condensation
Dimensions (LxWxH)
107 x 48 (82) x33 [mm]
Net/gross weight
0,24kg / 0,29kg
Protection class PN-EN 60950-1:2007
II (second)
Lenght of DC cable
1,45m + plug DC5,5/2,1 female
Lenght of AC cable
1,15m + mains plug
Storage temperature
-20ºC...+60ºC
* In order to extend the life of the power supply, the load current of 0,5A is recommended.
Graph 1.
Relation between output current and ambient
temperature (instantaneous load).
Fig.1. Dimension of power supply.
*
Refer to graph 1
