Data Sheet
UB20.241
UB-Series 
24V, 20A, DC-UPS 
WARNING
 Risk of electrical shock, fire, personal injury or death. 
-  Turn power off and disconnect the battery fuse before working on the device. Protect against inadvertent re-
powering. 
-  Make sure that the wiring is correct by following all local and national codes. 
-  Do not modify or repair the unit. 
-  Do not open the unit as dangerous voltages may be present inside. 
-  Use caution to prevent any foreign objects from entering the housing. 
-  Do not use in wet locations or in areas where moisture or condensation can be expected. 
-  Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns. 
-  Always dispose the batteries through a recycling organization. Batteries must be completely discharged before 
recycling. 
Fig. 3-1 Typical wiring diagram 
 24V Power
Supply
+
-
UB20.241
Input
+
-
+
-
24V Battery
Module
+
Buffered
Load
+
-
Non-
buffered
Load
+
-
24V
buffered
branches
24V
Non-bufferd
branches
Temp.
Sensor
Output
Battery
-
Bat1
12V
Bat2
12V
Center Tap
Temp. Sensor
DC-UPS
AC
DC
Output
Input
NLPE
+
+
optional
UZK24
Feb. 2016 / Rev. 2.1 DS-UB20.241-EN 
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. 
www.pulspower.com Phone +49 89 9278 0 Germany 
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