Input inrush current – Rockwell Automation 1606-XLP60BQ Power Supply Reference Manual User Manual
Page 5
All parameters are specified at 12V, 4.5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless noted otherwise.
Rockwell Automation Publication 1606-RM015A-EN-P — March 2014
5
Bulletin 1606 Switched Mode Power Supplies
Fig. 3-5
De-rating requirements for
low input voltages
0
85Vac
10
20
30
40
50
60W
Input Voltage
A... < +45°C
B... < +60°C
A
B
90Vac
108Vac
Allowable
Output Power
4. Input Inrush Current
A NTC limits the input inrush current after turn-on of the input voltage. The inrush current is input voltage and
ambient temperature dependent.
The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.
AC 100V
AC 120V
AC 230V
Inrush current
max.
17A
peak
21A
peak
40A
peak
40°C
ambient,
cold
start
typ.
14A
peak
16A
peak
32A
peak
40°C
ambient,
cold
start
Inrush energy
typ.
0.15A
2
s 0.2A
2
s 1.0A
2
s 40°C
ambient,
cold
start
Fig. 4-1
Input inrush current, typical behavior
Fig. 4-2
Input inrush current, zoom into first peak
Input Voltage
Input Current
Output Voltage
Input Current
Input:
230Vac
Output:
12V, 4.5A
Ambient: 25°C
Input current 2A/DIV
Time basis:
0.5ms / DIV
Input:
230Vac
Output:
12V, 4.5A
Ambient: 25°C
Upper curve: Input current 5A/DIV
Middle curve: Input voltage 100V/DIV
Lower curve: Output voltage 2.5V/DIV
Time basis:
20ms / DIV