Pulsar PS-251220 Manual


power output 2A/12÷15V DC

wide AC input voltage range 85-264V

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 t
AMB
Output current t
AMB
Voltage adjustment range
Ripple voltage
Short-circuit protection SCP
Overload protection OLP
Surge protection
Overvoltage protection OVP
Optical signalisation
Operation conditions
Dimensions
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
* In order to extend the life of the power supply, the load current of 1,4A is recommended.
*
See graph 1.
PS 12V/2A enclosed switch mode power supply
Features of the power supply unit:
*
<30°C
=40°C
PS-251220
Edition: 7 from 01.03.2018
Supersedes edition: 6 from 03.06.2016

protections:

SCP short-circuit protection

overvoltage OVP

overvoltage protection

overload (OLP)

warranty – 2 year from the production date
85 ÷ 264V AC
0,18A@230V AC max.
25W max.
74%
12V DC
2A - see graph 1.
1,4A - see graph 1.
12V ÷ 15V DC
100mV p-p max.
electronic, automatic recovery
105 ÷ 150% of power supply, automatic recovery
varistors
>16V (automatic return)
green LED – presence of DC voltage
2-nd enviromental class, temperature: -10
relative humidity 20%...90%, without condensation
L=110, W=78, H=36 [+/- 2mm]
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
PL
o o
C ÷ +40
C