KRAL BEM 500 - Electrical Connection

15 Accessories
15.2 Electrical connection
15.2 Electrical connection
15.2.1 Different voltage
The electronic unit operates with a power supply of 24VDC. If a deviating voltage is available in the
system, a suitable power supply unit can be used.
15.2.2 Rack mounting power supply unit EEN12
Fig.4: Rack mounting power supply unit EEN12
Component Parameter Unit Value
Input Input voltage [VAC]
[Hz]
[VDC]
o 100–240 (tolerance: 93–265)
o 47–63
o 135–370
Starting current inrush
max.
[VAC]
o 30 (at 230VAC)
o 15 (at115VAC) max. limited by NTC,
in heated state higher
Overvoltage protection at
the input
Varistor
Fuse Internal fuse T4A250V, additional external
fuse not required
Current consumption [Atyp.]
o 0.25 (at 230VAC)
o 0.5 (at 115VAC)
Output Output voltage [VDC] 24
Output current max. [mA] 850
Output power [W] 20
Function display LED at front panel
Current limitation Fold-back, set to approx.1.05 xI
nom
System deviation at load
change stat. 10–90%
[%] 0.1
System deviation at load
change dyn. 10–90%
[%] 1.0
Adjusting time [ms] 1
System deviation at input
change ±10%
[%] 0.1
Mains buffering [ms] > 20
Residual ripple [mVss] <50
Switching peaks [mVss] <100
Overvoltage protection at
the output
Suppressor diode (Transil diode)
44
OIE 12en-GB Edition 2020-03
Operating instructions