Input inrush current – Rockwell Automation 1606-XLP30EQ Power Supply Reference Manual User Manual

Page 5

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All parameters are specified at 124V, 1.3A, 230Vac input, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

Rockwell Automation Publication 1606-RM006A-EN-P - January 2014

5

Bulletin 1606 Switched Mode Power Supplies

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.

19A

peak

22A

peak

44A

peak

40°C

ambient,

cold

start

typ.

15A

peak

18A

peak

35A

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

Input Current

Input:

230Vac

Output:

24V, 1.3A

Ambient: 25°C
Upper curve:

Input current 5A/DIV

Lower curve:

Input voltage 500V/DIV

Time basis:

10ms / DIV

Input:

230Vac

Output:

24V, 1.3A

Ambient: 25°C
Input current 5A/DIV
Time basis:

400μs / DIV

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