Input inrush current – Rockwell Automation 1606-XLP60BQ Power Supply Reference Manual User Manual

Page 5

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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

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