www.pulsar.pl HPSB2548C
GREEN POWER
4
Fig.2. The view of the PSU.
1.4 Technical parameters:
- electrical parameters (tab.2)
- mechanical parameters (tab.3)
- operation safety (tab.4)
- operation parameters (tab.5)
Electrical parameters (tab. 2)
PSU type
A (EPS - External Power Source)
Mains supply
176÷264V AC
Current up to
1,4A@230V AC max.
Power frequency
50Hz
Supply power
135W max.
Efficiency
82%
Output voltage
48VDC (+/- 1V)
Output current t
AMB
<30°C
2,5A + 0,5A battery charge - refer to chart 1
Output current t
AMB
=40°C
1,7A + 0,5A battery charge- refer to chart 1
Ripple
100mV p-p max.
PSU current consumption
90 mA
Battery charge current
0,5A max. @ 2x17Ah (
± 5%)
Short-circuit protection SCP
F3,15A- melting fuse (in case of a failure, fuse-
element replacement required)
Overload protection OLP
110-150% PSU power, manual restart (the fault requires
disconnection of the DC output circuit)
Battery circuit protection SCP and reverse
polarity connection
melting fuse F15A
Surge protection
varistors
Excessive discharge protection UVP
U<19V (
± 5%) – disconnect of connection battery
Sabotage protection:
- TAMPER output indicating enclosure opening
- microswitch, NC contacts (enclosure closed),
0,5A@50V DC (max.)
LED indication:
- AC diode indicating AC power status
- AUX diode indicating DC 27,6V power status at
the switch mode PSU output
- red, normal status
– on, failure: off
- green, normal status
– on, failure: off
