DC-UPS CONTROL UNIT
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
SHORT-FORM DATA
Input voltage DC 24V -±25% 18-30Vdc
Output voltage same as input voltage in power supply mode 22.5V, 24V, 25V, 26V (selectable) in battery mode
Output current 25A continuous 30A for 4s in power supply mode 20A continuous 30A for 4s in battery mode at 22.5V
Allowed battery sizes 3.9 - 150Ah 2 batteries in series, each 12V
Buffer time 6min 45s at 20A, 7Ah 16min 47s at 20A, 12Ah 2h 49min at 20A, 65Ah 6h 20min at 20A, 140Ah
Temperature range Derating -40°C to +70°C operational 0.5A/°C +60°C to +70°C
Dimensions 46x 124x 127mm wxhxd
Weight 700g / 1.54lb
PRODUCT DESCRIPTION
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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