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Rockwell Automation Publication 1606-RM121A-EN-P - October 2020
Input Inrush Current
A negative temperature coefficient (NTC) limits the input inrush current after
turn-on of the input voltage. The inrush current is dependent on input voltage
and ambient temperature. The output load has no impact on the inrush
current value.
The charging current into EMI suppression capacitors is disregarded in the
first microseconds after switch-on.
Attributes
Values
Notes
AC 100V
AC 120V
AC 230V
Inrush current
Max
17 A
peak
22 A
peak
48 A
peak
At 40 °C (104 °F) ambient, cold start
Typ
14 A
peak
18 A
peak
40 A
peak
At 40 °C (104 °F) ambient, cold start
Max
15 A
peak
20 A
peak
43 A
peak
At 25 °C (77 °F) ambient, cold start
Typ
12 A
peak
16 A
peak
35 A
peak
At 25 °C (77 °F) ambient, cold start
Inrush energy
Max
0.3 A
2
s
0.4 A
2
s
1.7 A
2
s
At 40 °C (104 °F) ambient, cold start
Figure 5 - Typical Turn-on Behavior at 230V AC and 25 °C (77 °F) Ambient
Figure 6 - First Inrush Peak at 230V AC and 25 °C (77 °F) Ambient
20 ms/DIV
Input current 20 A/DIV
Input voltage 1000V/DIV
Output voltage
1 ms/DIV
Input current
5 A/DIV
Ipk = 35 A
Figure 7 - Typical Turn-on Behavior at 120V AC and 25 °C (77 °F) Ambient
Figure 8 - First Inrush Peak at 120V AC and 25 °C (77 °F) Ambient
20 ms/DIV
Input current 10 A/DIV
Input voltage 500V/DIV
Output voltage
1 ms/DIV
Input current
5 A/DIV
Ipk = 16 A
