Datasheet

UC10.241, UC10.242
UC-Series
24V, 15A, CAPACITOR-BASED BUFFER MODULES
3. INPUT
Input voltage nom. DC 24-28V
Input voltage ranges typ.
max.
22.5 to 30Vdc
30 to 35Vdc
continuous operation
temporarily allowed, no damage to the unit
Between 30 and 35Vdc buffering is not possible, the unit
indicates “Check Input Voltage” with the red LED on the
front
Transfer threshold voltage
typ.
typ.
max.
22.45V
±1%
22.55V
22.60V
22.88V
at no load
at 10A buffer current
at 15A buffer current
at 15A buffer current
The transfer threshold voltage describes the input
voltage, where the unit switches into buffer mode and
delivers output voltage from the capacitors if the input
was above the turn-on level before and all other buffer
conditions are fulfilled.
Turn-on voltage typ.
max.
22.8Vdc
23.0V
The output does not switch on if the input voltage is
below this level.
Allowed voltage between input
and earth (chassis)
max. 60Vdc or
42.4Vac
continuous, IEC 62103
Current consumption typ. 0.09A capacitors charged, output current not included
typ.
max.
1.1A
1.3A
during charging, output current not included
Input current max. 17A during charging an full output current
Return current typ.
max.
-9mA
-11mA
Leakage current to input in buffer mode
Suitable power sources on input no limitation in the maximum power supply current
Fig. 3-1 Input voltage range Fig. 3-2 Current budget
4/27
A: Buffer mode
B: Normal mode
V
IN
18
C: Short-term, no harm to the unit
30 35V22.50
ABC
V
OUT
Internal
current
Current
consumption
Output
Current
Input
Current
consumption
for capacitor
charging
Apr. 2014 / Rev. 2.0 DS-UC10.241-EN (REVC)
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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