Pulsar PS-12V3A User manual

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PS-12V3A
PS 12V/3A enclosed switch mode power supply
Edition: 1 from 09.12.2020
Supercedes the edition: ------------
EN
Features:
power output 3 A/12 –15 V DC
high efficiency 87%
LED indication
warranty –2 years from production date
protections:
SCP short-circuit protection
OVP overvoltage protection
overvoltage protection
overload protection (OLP)
1. Technical description.
1.1.General description.
The power supply unit is intended for supplying power to alarm system devices requiring 12 V DC supply voltage
and current load of I=3 A. The design enables simple change of the output voltage, within the range of 12 V - 15 V DC,
by means of a potentiometer. The power supply unit is protected against short-circuit, overload and overvoltage.
1.2.Specifications.
Power supply
~ 200 –240 V; 0,5 A; 50/60 Hz
Inrush current
40 A
PSU power
36 W max.
Efficiency
87%
Output voltage
12 V DC
Output current tAMB<30°C
3A
Voltage adjustment range
12V –15 V DC
Ripple voltage
100mV p-p max.
Short circuit protection SCP
electronic, automatic recovery
Overload protection OLP
105 –150% PSU power, automatically recovered
Surge protection
varistors
Over voltage protection OVP
>19 V (activation requires disconnecting the load or supply
for about approx. 1 min.)
LED operation indication
LED green –indicates DC voltage at the power
Operating conditions
Temperature: -10oC ÷ +40oC relative humidity 20%...90%,
without condensation
Dimensions
L=110, W=78, H=36 [+/- 2mm]
Net / gross weight
0,21 / 0,24 [kg]
Protection class EN 62368-1
I (first) - requires a protective conductor
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 the PSU
- between input circuit and PE protection circuit
- between output circuit and PE protection circuit
2500 V AC min.
1500 V AC min.
500 V AC min.
Insulation resistance:
- between input circuit and output or protection
circuit
100 MΩ, 500 V DC
Storage temperature
-20ºC...+60ºC
Vibrations and impulse waves during transport
according to PN-83/T-42106

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2. Installation.
2.1. Requirements.
The PSU is to be mounted by a qualified installer, holding relevant permits and licenses (applicable and required
for a given country) for 230 V AC and low-voltage installations. The unit should be mounted in confined spaces with
normal relative humidity (RH=90% maximum, without condensing) and temperature from -10°C to +40°C.
The device shall be mounted in a metallic enclosure (a cabinet, a final case). In order to fulfill LVD and EMC
requirements, the rules for: power-supply, encasing and screening shall be followed, according to application.
It is crucial to connect the PE wire to the corresponding connector of the supply unit.
2.2.Installation procedure.
Before installation, make sure that the voltage in the 230 V power-supply circuit is cut off. To switch off
power use an external switch in which the distance between the contacts of all poles in the
disconnection state is not less than 3mm.
1. Mount the PSU in a selected location and connect the wires.
2. Connect the power cables (~230 V) to L-N clips of the PSU.
The shock protection circuit shall be performed with a particular care, i.e. the yellow and green wire
coat of the power cable shall stick to one side of the ‘ ’ terminal - in the PSU enclosure. Operation of
the PSU without a properly made and fully operational shock protection circuit is UNACCEPTABLE! It
can cause a device failure or an electric shock.
3. Connect the ground wire to the clip marked by the earth symbol (connector of power supply module). Use a three-
core cable (with a yellow and green protection wire ) to make the connection. Lead the cables to the appropriate clips
of the subplate through the insulating bushing.
4. Check the PSU output voltage, if needed correct the setting it should by the potentiometer.
5. Connect load / loads to proper output connectors of the power supply (positive end is marked as +V, negative
end as V-)
6. Once the tests and control operation have been completed, close the enclosure/cabinet.
2.3. Description of the connectors.
Fig 1. Description of the connectors.
Elements/connectors [Fig.1]
Description
[1]
LED for DC output voltage
[2]
Potentiometer - output voltage adjust
[3]
The output of the PSU (V+, V-)
[4]
L-N –input voltage connectors 230 V AC,
–protective conductor connector

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2.4. Dimensions and fitting of the PS-12V3A power supply.
Fig. 2. Dimensions of the PSU.
3. Maintenance.
Any and all maintenance operations may be performed following the disconnection of the PSU from the power
supply network. The PSU does not require performing any specific maintenance measures, however, in the case of
significant dust rate, it is recommended to clean its interior with compressed air.
WEEE LABEL
Waste electrical and electronic equipment must not be disposed of with normal household waste.
According to the European Union WEEE Directive, waste electrical and electronic equipment
should be disposed of separately from normal household waste.
Pulsar sp. j.
Siedlec 150, 32-744 Łapczyca, Poland
Tel. [phone], Fax. [phone]
e-mail: [e-mail], sal[email protected]
http:// www.pulsar.pl, www.zasilacze.pl