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PS-251220
PS 12V/2A enclosed switch mode power supply
PL
Edition: 7 from 01.03.2018
Supersedes edition: 6 from 03.06.2016
EN
Features of the power supply unit:
power output 2A/12÷15V DC
*
wide AC input voltage range 85-264V
high efficiency 74%
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 12V DC supply
voltage and current load I=2A. The design enables simple changing of the output voltage, within the range of
12V÷15V 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
Current consumption
0,18A@230V AC max.
Supply power
25W max.
Efficiency
74%
Output voltage
12V DC
Output current t
AMB
<30°C
2A - see graph 1.
Output current t
AMB
=40°C
1,4A - see graph 1.
Voltage adjustment range
12V ÷ 15V DC
Ripple voltage
100mV 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
>16V (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=110, W=78, H=36 [+/- 2mm]
Net/gross weight
0,22kg / 0,24kg
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 1,4A is recommended.
*
See graph 1.

Summary of content (4 pages)