Input inrush current

An NTC limits the input inrush current after the input voltage is switched on. The inrush current surge depends on the input voltage and the ambient temperature. The output load has no influence on the value of the inrush current surge.

The charge current of the interference suppression capacitors during the first few microseconds after switching on is not taken into account.

 

 

AC 100V

AC 120V

AC 230V

 

Input inrush current

typ.

12Apeak

15Apeak

36Apeak

At +40°C, cold start

typ.

10Apeak

12Apeak

30Apeak

At +25°C, cold start

Max.

15Apeak

18Apeak

44Apeak

At +40°C, cold start

Max.

12Apeak

15Apeak

36Apeak

At +25°C, cold start

Inrush energy

Max.

0.2A2s

0.3A2s

1.4A2s

At +40°C, cold start

Input inrush current 1:
Switch-on behavior at nominal load, typ., 120Vac@25°C; zoom inrush current surge
Input inrush current 2:
Switch-on behavior at nominal load, typ., 230Vac@25°C; zoom inrush current surge