UC10.241, UC10.242
UC-Series
24V,
15A,
CAPACITOR-BASED
DC-UPS
Notes for use in hazardous location areas:
The DC-UPS is suitable for use in Class I Division 2 Groups A, B, C, D locations and for use in Group II Category 3 (Zone
2) environments and are evaluated according to EN 60079-0 and EN 60079-15.
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment. Do not disconnect the unit or change unit
settings unless power has been switched off or the area is known to be non-hazardous.
A suitable enclosure must be provided for the end product which has a minimum protection of IP54 and fulfils the
requirements of the EN 60079-15.
3.
I
NPUT
Input voltage
nom.
DC 24V
-20%/+25%
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
V
OUT
A: Buffer mode
B: Normal mode
C: Short-term, no harm to the unit
V
IN
18
30
35V
22.5
0
A
B
C
Internal
current
consumption
Current
consumption
for capacitor
charging
Output
Current
Input
Current
May 2016 / Rev. 2.2 DS-UC10.241-EN
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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