Capacitor buffered Power Supply

C-TEC 1225 P

Short description

The DC UPS of the C-TEC 1225 P series is equipped with integrated ultracapacitors for accumulating energy. During normal operation this capacitor is charged by an internal charger which is supplied by an external, regulated DC power supply. If the DC supply is interrupted, energy of the ultracapacitors is released in a unregulated process (12,25 to 10 V DC). The load is supplied by the buffermodul until the voltage is ≤ 10 V. The buffering time depends on the state of charge of the capacitor and discharging current. As further function the C-TEC 1225 P can provide more current for a certain time. 

The DC-UPS shows the following features:

  • Maintenance-free due to durable ultra capacitors
  • reduces wiring time due to intergrated energy storage
  • Microcontroller based charging and discharging of the ultracapacitors
  • Input voltage-signal via potential-free contact and LED
  • Short overload possible
  • Vibration secured wiring via spring loaded plugs
  • Wide working temperature range -40°C till 60°C

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Technical Data

Nominal input voltage

12 V DC ±10%

Min. nominal input voltage for charging mode

11,3 V DC

Max. nominal input current

28,5 A DC

Max. charging current

3,5 A DC  

Nominal output voltage (mains operation)

12 V DC ±10%  

Nominal output voltage (buffer operation)

12 V … 10 V DC ± 2 %  

Max. nominal output current

25 A DC


>90 %

Parallel connection


Series connection


Energy content

0,5 kJ

Buffer time

47 sec @ 1 A / 1 sec @ 25 A  

Degree of protection


Operating temperature

-40 ... 60 °C

Storage temperature

-40 ... 60 °C

Relative humidity

95 % non-condensing

Max. altitude (without derating)

2000 m above sealevel

Dimensions (H x W x D)

123 mm x 65 mm x 145 mm


 0,7 kg

Norms and Regulations

EN 50178 / EN 60950

UL approvals


For more details see datasheet.


File Format


Flyer C-TEC 1225 P-PDF
3D Model-STP
EPLAN Macro140703edz

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