20
21
-1
1
12
Power Supply PS1000-A6-48.5
Input Inrush Current
7
Input Inrush Current
An active inrush limitation circuit (NTCs, which are bypassed by a relay contact) limits the input
inrush current after turn-on of the input voltage.
The charging current into EMI suppression capacitors is disregarded in the first microseconds
after switch-on.
Figure 7.1
Typical turn-on behavior at nominal load, 120Vac input and 25°C ambient
Figure 7.2
Typical turn-on behavior at nominal load, 230Vac input and 25°C ambient
AC 100V
AC 120V
AC 230V
Inrush current
Max.
11A
peak
7A
peak
11A
peak
At 40°C, cold start
Typ.
9A
peak
6A
peak
6A
peak
At 25°C, cold start
Typ.
9A
peak
6A
peak
9A
peak
At 40°C, cold start
Inrush energy
Max.
0.1A²s
0.1A²s
0.4A²s
At 40°C, cold start
50ms/DIV
Input current
2A/DIV
Input voltage
250V/DIV
Output voltage 40V/DIV
6A
50ms/DIV
Input current
2A/DIV
Input voltage
500V/DIV
Output voltage 40V/DIV
6A
