Pulsar PSB-24V3A User Manual

1
PSB-24V3A
PSB 27,6V/3A enclosed switch
mode buffer power supply
Edition: 1 from 28.04.2020
Supercedes the edition: ------------
EN
Features of the power supply:
 DC 27,6 V/3 A uninterruptible power supply
 high efficiency 90%
 controlling of battery charging and maintaining
 protecting of battery against excessive discharging
(UVP)
 battery charging current 0,5 A/1 A, changed by
jumper
 optional equipment: set of external LED indicators:
PKAZ168, mounting plate DIN3
 battery output is full protected against short-
circuit and reverse connection
 LED optical signalisation
 protections:
 short-circuit protection SCP
 over voltage protection OVP
 surge protection
 overload protection OLP
 warranty – 2 years from production date
1. Technical description.
1.1. General description.
Buffer-type power supply units are intended for continuous power supply to devices that require stabilised voltage
of 24 V DC (+/-15%). The power supply provides a voltage of U=27,6 V DC with an output current of:
1. Output current of 3 A + 0,5 A battery charging
2. Output current of 2,5 A + 1 A battery charging
Total device current + battery: 3,5 A max.
In case of power voltage decay, prompt switching to battery supply occurs. The power supply unit is protected
against a short circuit, an overload, a surge or over voltage protection.
1.2. Technical parameters.
Supply voltage
~ 200 – 240 V; 1 A; 50/60 Hz
Inrush current
40 A
Supply power
97 W
Efficiency
87%
Output voltage (factory settings)
22-27,6 V DC – buffer operation
19-27,6 V DC – battery operation
Output current
3,5 A
Battery charging current
0,5 A / 1 A jumper selectable
Voltage adjustment range
27 – 28,8 V DC
Current consumption by PSU during battery-
assisted operation
approx. 10 mA
Ripple voltage
100mV p-p max.
Short-circuit protection SCP
electronic, automatic recovery
Overload protection OLP
105-150% PSU power, automatically recovered
Overload protection (battery) OLP
melting fuse F4 A
Surge protection
varistors
Overvoltage protection OVP
>37 V (activation requires disconnecting the load or supply
for about approx. 1 min)
Excessive discharge protection UVP
U<19 V (± 5%) – disconnection of battery
Optical signalisation
LED green – indicates DC voltage at the power
LED optical indication output (intended for optional
indication set PKAZ168)
LED AC – presence of AC voltage
LED DC – presence of DC voltage on power supply output
LED CHARGE – battery charging process
Optional equipment
A set for optical indication LED PKAZ168
Operation conditions
Temperature: -10
o
C ÷ +40
o
C relative humidity 20%...90%,
without condensation

Pulsar PSB-24V3A Specifications

General

Brand	Pulsar
Model	PSB-24V3A
Category	Switch
Language	English