Pulsar PSB-754813 Technical Description


DC 54V/1,3A uninterruptible power supply

wide AC input voltage range 176÷264V

high efficiency 88%

controlling of battery charging and maintaining

protecting of battery against excessive discharging
(UVP)

battery charging current 0,3A

additional accessories: automation module
MPSB48 (technical outputs):

EPS technical output indicating AC power loss

PSU technical output indicating PSU failure

LoB technical output indicating battery low
voltage
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 48V DC (+/-15%). The power supply provides a voltage of U=54V DC with an output current of I=1A + 0,3A battery
*
charging . 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.
Under normal operation, the total current drawn by the equipment may not exceed I=1A. Maximum battery
charging current 0,3A. Total device current + battery 1,3A
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
Battery charging current
Short-circuit protection SCP
Overload protection OLP
Overload protection (battery) OLP
Surge protection
Overvoltage protection OVP
Excessive discharge protection UVP
Optical signalisation
Output of optical signalization

See chart 1
Features of the power supply:
<30°C
=40°C
PSB-754813
PSB 54V/1,3A enclosed switch
mode buffer power supply
Edition: 3 from 01.03.2018
Supercedes edition: 2 from 20.06.2017

* battery output is full protected against short-
circuit and reverse connection

LED optical signalisation

protections:





warranty – 2 year from the production date

max.
176÷264V AC
0,78A@230VAC max.
75W max.
88%
44V÷ 54V DC – buffer operation
38V÷ 54V DC – battery operation
1A + 0,3A battery charging - see chart 1
0,6A + 0,3A battery charging - see chart 1
48÷55V DC
150mV p-p max.
0,3A max.
Electronic, automatic recovery
105-150% of power supply, automatic recovery
glass fuse
varistors
>62V (automatic recovery)
U<38V (± 5%) – disconnection of battery
green LED- presence of AC voltage
LED AC- presence of AC voltage
LED DC- presence of DC voltage on power supply output
1
short-circuit protection SCP
over voltage protection OVP
surge protection
overload protection OLP
EN**
PL