Data Sheet

PSB-3004850 v1.0/II
PSB 54V/5A enclosed switch mode buffer power supply
CODE:
TYPE:
EN**
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:
1. Output current of 4,5A + 0,5A battery charging*
2. Output current of 4A + 1A battery charging
3. Output current of 3A + 2A battery charging*
Total device current + battery charging current: 5A max.*
In case of power voltage decay, prompt switching to battery supply occurs. The power supply is equipped with short
circuit protection, overload protection, overvoltage and thermal overload protection. The power supply is fitted with a fan
for forced cooling, switching on depending on the temperature and the load of the power supply.
*
TECHNICAL DATA
Tel. [phone], fax: [phone], www.pulsar.pl, e- mail: [e-mail]
PSB series power supply
Enclosed, switch mode buffer power supply 54V DC, without automatic operation control
Pulsar
®
Supply voltage 176÷264V AC
Current consumption 1,5A@230VAC max.
Supply power 300W max.
Efficiency 85%
Power factor PF >0,95 @230V AC
Output voltage 44V÷ 54V DC – buffer operation
38V÷ 54V DC – battery operation
Output current t
AMB
<30°C 4,5A + 0,5A battery charging - see chart 1
4A + 1A battery charging - see chart 1
3A + 2A battery charging - see chart 1
Output current t
AMB
=40°C 3A + 0,5A battery charging - see chart 1
2,5A + 1A battery charging - see chart 1
1,5A + 2A battery charging - see chart 1
Voltage adjustment range 48÷56V DC
Ripple voltage 150mV p-p max.
Battery charging current 0,5A, 1A or 2A max.
Short-circuit protection SCP electronic
Overload protection (battery) OLP glass fuse
Surge protection varistors
Overvoltage protection OVP
>62V (activation requires disconnecting the load or supply for
about 20 s.)
Excessive discharge protection UVP U<38V (± 5%) – disconnection of battery
Optical signalisation green LED- presence of AC voltage
Output of optical signalization LED AC- presence of AC voltage
LED DC- presence of DC voltage on power supply output
Operation conditions 2-nd enviromental class, temperature: -10
o
C÷40
o
C
relative humidity 20%...90%, without condensation
Dimensions L=275, W=115, H=50 [±2mm]
Net/gross weight 1,25kg / 1,30kg
Protection class EN 60950-1:2007 I (first) - requires a protective conductor (PE)
Declarations, warranty CE, 2 year from the production date
Connectors
power-supply: Φ0,63÷2,5 I/O PCB: Φ0,41÷1,63
battery output BAT: Φ0,63÷2,5 I/O PCB: Φ0,41÷1,63
output of optical signalization: plug 3-pin 5 mm
* See chart 1
Features of the power supply:
· DC 54V/5A uninterruptible power supply*
· wide AC input voltage range 176÷264V
· built-in power factor correction system (PFC)
· high efficiency 85%
· controlling of battery charging and maintaining
· protecting of battery against excessive discharging
(UVP)
· battery charging current 0,5A/1A/2A, changed by
jumper
· 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
· forced cooling - built-in fan
· 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
· overheat protection OHP
· warranty – 2 year from the production
date