UB40.241
UB-Series
24V,
40A,
DC-UPS
Jun. 2020 / Rev.0.1 DS-UB40.241-EN All values are typical figures specified at 24Vdc input voltage, 40A output current in
power supply mode at 25°C ambient, no charging and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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DC-UPS
C
ONTROL
U
NIT
▪
1-Battery-Concept - Each 12V battery is charged and monitored
separately for longest battery life, matching of batteries not
necessary
▪
Output is decoupled from the input to separate load circuits into
buffered and non-buffered sections
▪
Allows VRLA battery sizes between 12Ah and 200Ah;
“
Battery Size
”
selector for various battery sizes
▪
50% Extra output power for up to 5s
▪
Superior battery management for longest battery life
▪
Comprehensive diagnostic and monitoring functions
▪
“
Replace Battery
”
signal included
▪
“
Battery-Low Prewarning
”
signal included
▪
Selectable buffer time limiter
▪
Temperature controlled battery charging
▪
3 Years warranty
P
RODUCT
D
ESCRIPTION
The UB40.241 is an uninterruptible power supply controller (DC-
UPS controller), which is used in combination with a 24V power
supply and an external 24V-battery pack to bridge power
failures. When the power supply provides sufficient voltages,
the DC-UPS controller charges the battery. When the power
supply voltage fails, the energy stored in the battery is released
to the DC bus in a regulated process.
A unique feature is the battery charger, which can balance two
unmatched batteries and which includes two independent
battery testers for the two 12V batteries connected 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 device includes various battery diagnostic functions
including a battery-low pre-warning signal that ensure a reliable
operation of the entire system. Furthermore, 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 to enable phases
without enforced buffering.
S
HORT
-
FORM
D
ATA
Input voltage
DC 24V
±25%
Min. input voltage to start
charging and to enable
battery mode
23V
Transfer voltage to switch
to battery mode
22.2V
Internal current
consumption
3.2A / 6.2A
<65Ah / ≥65Ah, incl.
charging current
Voltage loss
55mV / 110mV
Input to output,
at 20A / 40A
110mV / 220mV
Battery input to output, at
20A / 40A
Output current
50A
Below +50°C
40A
At +60°C
30A
At +70°C
60A
Short term, up to 5s
Derate linearly b50 and +70°C
Power losses
6.0W
At 40A in power supply
mode, full batteries
9.9W
At 40A in battery mode
Temperature range
-25°C to +70°C
Size (wxhxd)
46x124x127mm
Without DIN-rail
Weight
530g / 1.17lb
O
RDER
N
UMBERS
DC-UPS
UB40.241
Standard DC-UPS unit
Batteries
UZK24.122
Battery module 24V, 12Ah
UZO24.122
UZK24.122 w/o batteries
UZK24.262
Battery module 24V, 26Ah
UZO24.262
UZK24.262 w/o batteries
UZK24.262-E1
Battery extension 24V, 26Ah
UZO24.262-E1
UZK24.262-E1 w/o batteries
UZW24.100
Connection and wiring kit
UZW24.101
Connection and wiring kit
UZS24.100
Sensor and center-tap board
M
AIN
A
PPROVALS
For details or a complete approval list see chapter 19.
planned
IND. CONT. EQ.
planned
