User Instructions
1
PS-604812
PS 48V/1,2A enclosed switch mode power supply
PL
Edition: 2 from 01.03.2018
Supersedes edition: 1 from 06.12.2016
EN
Features of the power supply unit:
power output 1,2A//48÷ 53V DC
*
universal AC input voltage range 85÷264V
high efficiency 81%
LED optical signalisation
protections:
SCP short-circuit protection
overvoltage OVP
overvoltage protection
overload (OLP)
warranty – 2 year from the production date
1. Technical description.
1.1. General description.
The power supply unit is intended for the feeding of alarm system equipments, which require 48V DC supply voltage
and current load I=1,2A. The design enables simple changing of the output voltage, within the range of 48V÷53V DC, using a
potentiometer. The power supply unit is protected against short-circuit, overload and overvoltage.
1.2.Technical parameters.
Supply voltage
85 ÷ 264V AC, 120 ÷ 370V DC
Current consumption
0,6A@230V AC max.
Supply power
60W max.
Efficiency
81%
Output voltage
48V DC
Output current t
AMB
<30°C
1,2 A - see graph 1.
Output current t
AMB
=40°C
0,9 A - see graph 1.
Voltage adjustment range
48V ÷ 53V DC
Ripple voltage
150mV p-p max.
Short-circuit protection SCP
electronic, automatic recovery
Overload protection OLP
105 ÷ 150% of power supply, automatic recovery
Surge protection
varistors
Overvoltage protection OVP
>60V (automatic return)
Optical signalisation
green LED – presence of DC voltage
Operation conditions
2-nd enviromental class, temperature: -10
o
C ÷ +40
o
C
relative humidity 20%...90%, without condensation
Dimensions
L=159, W=97, H=38 [+/- 2mm]
Net/gross weight
0,48kg / 0,5kg
Protection class PN-EN 60950-1:2007
I (first) – requires a protective conductor (PE)
Connectors
power-supply:Φ0,63-2,50 (AWG 22-10)
outputs: Φ0,63-2,50 (AWG 22-10)
Electrical strength of insulation:
- between input (network) circuit and output circuits of
power-supply (I/PO/P)
- between input circuit and PE protection circuit (I/P-
FG)
- between output circuit and PE protection circuit
(O/P-FG)
3000 V/AC min.
1500 V/AC min.
500 V/AC min.
Insulation resistance:
- between input circuit and output or protection circuit
100 MΩ, 500V DC
Storage temperature
-20ºC...+60ºC
Vibrations and impulse waves during transport
according to PN-83/T-42106
* In order to extend the life of the power supply, the load current of 0,9A is recommended.
*
See graph 1.