PULS

Uninterruptible Power Supply (UPS)

DIMENSION series

UB-series

DC/DC Uninterruptible Power Supply (UPS) control module

external batt.
Green status LED

18Vdc-30Vdc (24Vdc nom.)

"Status" LED

DC

20A (at 22.5Vdc)
30A (in bfr. mode less than 5s full output voltage)
Output 1 in normal mode = 25A
Output 1 in buffer mode = 20A/30A (720W for up to 5s)

600W (at 24Vdc)
480W/720W (buffer mode)

22.5Vdc/24Vdc/25Vdc/26Vdc (selectable) in bfr. mode

screw-clamp connections

output overvoltage protection (32Vdc typ. / 35Vdc max.)
2 DC-UPS with 2 individual power supplies 2 battery modules and 1 decoupling module can be used to build a system with higher output current.

0.99 (24Vdc input)

DIN rail mounting

W46mm x H124mm x D127mm

Aluminium housing

-40...+70 °C

Ready
Buffering
Inhibit
Replace Battery

2.1A (24Vdc input)
2.3A max. (24Vdc input)

battery 24V; 3.9-150Ah

(24Vdc input; 0A output current) 1.9 W
(24Vdc input; 10A output current) 4.8 W

Commercialized

UB20241

CE marking
UL 508
UL 60950-1
IEC 60950-1 CB-Scheme
IECEx
ATEX
Class I Div. 2 HazLoc
GL Marine
ABS Marine
EAC Registration
EN 61000-6-1 Immunity for residential environments
EN 61000-6-2 Immunity for industrial environments
EN 61000-6-3 Emission for residential environments

No Change in Output Voltage in Battery Mode
Selectable Output Voltages in Battery Mode
1-Battery-Concept
Each 12V Battery is Charged and Monitored Separately
for Longest Battery Life
Precise Battery Charging by Using a Temperature Sensor
Battery Size Selector for Small or Large Batteries
50% BonusPower 30A for up to 4s
High Breaking Capacity for Branch Protectors
Smart Battery Diagnostics and Monitoring Functions
3 Year warranty
The UB20.241 uninterruptible power supply controller (DC-UPS) is used in addition with a 24V power supply and batteries to bridge power failures or voltage fluctuations. This configuration can prevent expensive downtimes long restart cycles and loss of data. A unique feature of the UB20 series is the constant voltage in battery mode which will not change as the batteries discharge. The buffer voltage in battery mode can be set to 4 different output values. Another feature is the utilization of 2 independent battery chargers for the 2 12V-batteries in series. This feature makes matching batteries unnecessary and allows for precise battery charging testing and optimized usage of the battery capacity to achieve the longest battery service life. The UB20.241 includes many battery diagnostic functions that ensure a reliable operation of the entire system. Furthermore a temperature controlled charging extends the life of the batteries. It also includes a selectable buffer time limiter as well as ready buffering and replace battery contacts. For safety and maintenance an inhibit input signal is included which prevents a battery backup.

(at 40°C; 10A output; 24Vdc input) 440000 hours
(at 25°C; 10A output; 24Vdc input) 1244000 hours
(at 40°C; 20A output; 24Vdc input) 122000 hours
(at 25°C; 20A output; 24Vdc input) 345000 hours

120mVpp (20Hz...20MHz; 50Ω)

649000h (at 40°C; 24Vdc input; MTBF SN 29500 IEC 61709)
1097000h (at 25°C; 24Vdc input; MTBF SN 29500 IEC 61709)
372000h (at 40°C; 24Vdc input; MTBF MIL HDBK 217F Ground Benign GB40)
498000h (at 25°C; 24Vdc input; MTBF MIL HDBK 217F Ground Benign GB25)
107000h (at 40°C; 24Vdc input; MTBF MIL HDBK 217F Ground Fixed GB40)
137000h (at 25°C; 24Vdc input; MTBF MIL HDBK 217F Ground Fixed GB25)