DC-UPS with Batteries

Type      : AKKUTEC 2403 K
Art.-No. : NBPA Q33G1MX

Short description



The battery buffered DC power supply of the series AKKUTEC is working according the stand-by parallel mode and ensures in connection with a lead-acid accumulator a safe continuous DC power supply in case of mains failure.
The back-up time is depending from the state of charge of the accumulator and of the discharge current.

The power supply has the following features:

  • Battery charger with I/U-charging characteristics
  • Battery management by micro-controller
  • Battery voltage tracking of the charging voltage by external sensor module (optional)




Technical Data

Nominal input voltage230 V AC ± 15%
Nominal frequency47 ... 63 Hz
Max. nominal input current0,7 A
Max. charging current0,25 A
Nominal output voltage24 V DC
Output voltage range (with temp.-sensor)19,8 V DC ... 27,8 V DC
Output voltage range (without temp.-sensor)19,8 V DC ... 26,8 V DC
Max. nominal output current2,85 A DC
Charge end voltage with temp.-sensor @ 25°27,1 V DC ± 0,4%

Charge end voltage without temp.-sensor

26,8 V DC ± 0,4%
Efficiency87 %
Battery type

Pb-Akku, maintenance-free

Pb- Akku maintenance-free (Option with changed characteristic)

Buffer timeDepending on battery and load
Degree of protectionIP 20
Operating temperature0 ... 40 °C
Storage temperature0 ... 50°C
Relative humidity
Max. altitude (without derating)
Dimensions (H x W X D)3HE (128,4) x 11TE (55,0) x ?
Norms and RegulationsEN 50178 / EN 60950
UL approvalsNo
For more details see datasheet.


File Format


EPLAN Macro140703edz

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