•
power output 2A/12÷15VDC
•
wide AC input voltage range 176÷264V
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high efficiency 74%
•
LED optical signalisation
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
Current consumption
Supply power
Efficiency
Output voltage
Output current
Output current t
AMB
Output current t
AMB
Voltage adjustment range
Ripple voltage
Short-circuit protection SCP
Overload protection OLP
Overvoltage protection OVP
Optical signalisation
Operation conditions
Dimensions (LxWxH)
Net/gross weight
Protection class PN-EN 60950-1:2007
Connectors
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)
Insulation resistance:
- between input circuit and output or protection circuit
Storage temperature
Vibrations and impulse waves during transport
PS 12V/2A enclosed switch mode power supply
Features of the power supply unit:
<30° C
=40° C
PS251220
Edition: 2 from 25.05.2012
Supersedes edition: 1 from 05.12.2011
•
protections:
•
SCP short-circuit protection
•
overvoltage OVP
•
overvoltage protection (AC input)
•
overload (OLP)
176 ÷ 264 V AC
0,18A@230VAC max.
25W max.
74%
12V DC
2A
2A - see graph 1.
1,4 A - see graph 1.
12 V ÷ 15V DC
100mV p-p max.
electronic, automatic recovery
105-150% of power supply, automatic recovery
U>115% ÷ 135% of the output, isolation
of the output voltage, automatic recovery
green LED – presence of DC voltage
2-nd enviromental class, temperature: -10
relative humidity 20%...90%, without condensation
110 x 78 x 36 [mm]
0,22kg / 0,24kg
I (first) – requires a protective conductor (PE)
power-supply:Φ0,63-2,50 (AWG 22-10)
outputs : Φ0,63-2,50 (AWG 22-10)
3000 V/AC min.
1500 V/AC min.
500 V/AC min.
100 MΩ, 500V/DC
-20ºC...+60ºC
according to PN-83/T-42106
1
EN
o
o
C÷40
C
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