AC C-TEC 1203-05

Capacity buffered Power Supply 

Type       :   AC C-TEC 1203-05
Art.-No.  :  NCPA0724G10002




Short description

The buffered DC power supply of the AC C-TEC series includes ultra-capacitors as energy storage inside the housing. During normal operation this capacitor is charged from AC-mains. The connected DC consumers are supplied as well from AC mains. In case of an interruption of the AC supply, the energy of the ultra-capacitor is realesed regulated. With a dc/dc converter the load is supplied from the capacitor until it is discharged. The backup time depends on the state of charge of the capacitor and the discharge current.


The power supply hast he following characteristics:

  • Maintenance-free  because of long-life ultra-capacitors
  • Mikrocontroller based charging and discharging of the ultra-capacitors
  • Control of operation and status of charge with potential-free contacts and LED
  • Capacity extension possible with external capacitor extension modules

Technical Data

Nominal input voltage115 ... 230 V AC  ±15%
Min. nominal Input voltage for charging operation97,8 V ... 264,5 V AC
Nominal frequency

47 ... 63 Hz 

Max. nominal iinput current

0,84 A ... 115 V AC
0,42 A ... 230 V AC

Max. inrush current30 A / 2 ms
Nominal Output current max.3 A DC (at 0,47 kJ)
Nominal Output current at Maximum energy2 A DC (at 0,5 kJ)
current limitation1,05 ... 1,5 x INenn
Nominal output voltage (in mains operation)

12,3 V DC ± 2 %

Output voltage range (in back-up operation)

11,5 V DC ± 2 %

efficiency88 % @ (Ue=230 V AC; Ua=24,3 V DC; Ia=INenn)
Operation in parallelyes
Operation in seriesyes

500 J

Protective system

IP20 a. EN 60529

operational temperature

-20 ... 60 °C

storage temperature

-20 ... 60 °C

Relative humidity

95 % condensation not permissible

Max. mounting height (without load reduction)1000 m ü. NN
dimensions (H x W x D)

152,5 mm x 72 mm x 130mm  


0,85 kg

Norms and regulations

EN 50178

EN 60950



 further data see data sheet


File Format
Datasheet AC C-TEC 1203-05170609PDF

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