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PULS
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 four different output values. Another feature is the utilization of two independent battery chargers for the two 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.
Input data |
|
|---|---|
| Input current during charging | 3,4 A |
| Input voltage from the unit | 24 V DC |
| Input voltage for battery connection | 22,8 V DC |
| Input voltage from the battery | 24 V DC |
Output data |
|
| Output voltage for battery operation | 22,5 |
| Output current during operation max | 25 A |
| Output current for battery operation max | 20 A (30 A @ 4 s) |
| Output voltage normal operation | 24 V DC |
| Output current at 24 V dc | 20 A |
Efficiency / Lifetime / MTBF |
|
| Life span | 122 000 h @ 20 A, 40 °C |
| Efficiency | 99 % |
| MTBF (IEC 61709) | 649 000 h @ 20 A, 40 °C |
Dimensions |
|
| Weight | 0,7 kg |
| Depth | 117 mm |
*Invisible Heading* |
|
|---|---|
| Width | 49 mm |
| Height | 124 mm |
Other |
|
| Charging the battery type | 3 A |
| IP class | IP20 |
| Ripple max | 120 mV pp |
| Voltage level for battery connection | 24 V DC |
| Power drop from +60 °C to + 70 °C | 12 W/°C |
| Temperature min without derating | -40 °C |
| Permitted battery sizes | 3,9-150 Ah |
| Approvals | ABS, CB, CE, CSA, CSA US, EX, GL, IECEx, UL |
| Temperature max without derating | 60 °C |
| Material protection | Aluminium |
| Type Power Supply | DC-UPS |
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 four different output values. Another feature is the utilization of two independent battery chargers for the two 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.
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