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DC 13,8V/1,5A uninterruptible power supply
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wide AC input voltage range 176÷264V
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high efficiency 70%
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controlling of battery charging and maintaining
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protecting of battery against excessive discharging
(UVP)
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battery charging current 0,5A
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additional accessories: automation module
MPSB12 (technical outputs):
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FAC technical output indicating AC power loss
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FPS technical output indicating PSU failure
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FLB 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 12 V DC (+/-15%). The power supply provides a voltage of U=13,8 V DC with an output current of I=1A+ 0,5A battery
charging. In case of power voltage decay, prompt switching to battery supply occurs. The power supply has the following
protections: short-circuit (SCP), overload (OLP) and overvoltage (OVP).
Under normal operation, the total current drawn by the equipment may not exceed I = 1 A; Maximum
battery charging current: 0.5 A. Total device current + battery: 1,5 A max.
1.2. Technical parameters.
Supply voltage
Current consumption
Supply power
Efficiency
Output voltage
Output current
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
Additional accessories
Operation conditions
Features of the power supply:
<30° C
=40° C
PSB-251215
PSB 13,8V/1,5A enclosed switch
mode buffer power supply
Edition: 2 from 04.02.2013
Supercedes edition: 1 from 08.03.2012
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battery output is full protected against short-
circuit and reverse connection
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LED optical signalisation
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protections:
•
•
•
•
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warranty – 2 year from the production date
176÷264V AC
0,35A@230VAC max.
25W max.
70%
11V÷ 13,8VDC – buffer operation
9,5V÷13,8V DC – battery operation
1A + 0,5A battery charging
1A + 0,5A battery charging - refer to graph 1 .
0,7 A + 0,5A battery charging - refer to grap h 1.
12÷14V DC
120mV p-p max.
0,5A max
electronic, automatic recovery
105-150% of power supply, automatic recovery
polymer fuse (PTC)
varistors
>16V (automatic recovery)
U<9,5 V (± 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
Module MPSB12 (
technical outputs )
2-nd enviromental class, temperature: -10
relative humidity 20%...90%, without condensation
1
SCP short-circuit protection
OVP overvoltage protection
overvoltage protection
overload (OLP)
o
C÷40
EN
o
C
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