1
PSD480250
PSD 48V/2,5A switch mode
power supply desktop for CCTV
PL
Edition: 1 from 22.06.2015
Supersedes edition: -------
EN
Features of the power supply unit:
power output 2,5A/48VDC
*
universal AC input voltage range
90÷264V
built-in active power factor correction circuit (PFC)
high efficiency 90%
LED optical signalisation
standby power <0,5W
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. Technical parameters.
Supply voltage
90 ÷ 264V AC 50÷60Hz
Current consumption
0,6A@230V AC max.
Supply power
120W max.
Efficiency
90%
Power factor PF
>0,95 @230V AC
Output voltage
48V DC
Output current t
AMB
<30°C
2,5A - refer to graph 1.
Output current t
AMB
=40°C
1,75A - refer to graph 1.
Ripple voltage
250mV 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 -10
o
C÷40
o
C
relative humidity 20%...90%, without condensation
Dimensions (LxWxH)
172 x 73 x 34 [mm]
Net/gross weight
0,75kg/0,85kg
Protection class PN-EN 60950-1:2007
I (first)
Lenght of DC cable
1,5m + plug DC5,5/2,1 female
Lenght of AC cable
1,5m + mains plug
Storage temperature
-
20ºC...+60ºC
* In order to extend the life of the power supply, the load current of 1,75A is recommended.
Graph 1.
Relation between output current and ambient temperature
(instantaneous load).
Fig.1. Dimension of power supply.
*
Refer to graph 1
