C-TEC 2420-8

Capacitor buffered Power Supply 

Type       :   C-TEC 2420-8
Art.-No.  :   NCPA0747G01003


Short description

The DC UPS of the C-TEC 2420 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 regulated process (24 V DC ±2%). The load is supplied by the buffermodul until the capacitors are discharged. The buffering time depends on the state of charge of the capacitor and discharging current.

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 up to 60°C


Technical Data

Nominal input voltage

24 V DC ± 12,5 %

Min. nominal input voltage for charging mode
Max. nominal input current

20  A

Nominal output voltage (mains operation)24 V
Nominal output voltage (buffer operation)

23,2 V DC

Max. nominal output current

20 A DC

Energy content

8 kJ


> 90 %

Buffer timeDepending on load
Degree of protection


Operating temperature

-40 ... 60 °C

Storage temperature

-40 ... 60 °C

Relative humidity95 % non-condensing
Max. altitude (without derating)2000 a. s. l.
Dimensions (H x W x D)

192 mm x 84 mm x 192 mm


approx. 2,2 kg


Snap-on mounting for DIN top hat rail

or mounting bracket for mounting plate

Norms and Regulations

EN 50178 / EN 60950

UL approvals

UL 508


For more details see datasheet.


File Format


3D Model-STP
EPLAN Macro140703edz

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