Efficiency and power losses – Rockwell Automation 1606-XLS240F, -XLS240F-D Power Supply Reference Manual User Manual

Page 10

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All parameters are specified at 48V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time, unless noted otherwise.

10

Rockwell Automation Publication 1606-RM045A-EN-P — March 2014

Bulletin 1606 Switched Mode Power Supplies

9. Efficiency and Power Losses

AC 100V

AC 120V

AC 230V

Efficiency

typ.

90.4%

91.2%

92.0%

at 48V, 5A

Average efficiency *)

typ.

89.6%

90.0%

90.3%

25% at 1.25A, 25% at 2.5A,
25% at 3.75A, 25% at 5A

Power losses

typ.

5.6W

5.7W

5.9W

at 48V, 0A

typ.

25.5W

23.2W

20.9W

at

48V,

5A

*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%

of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.

Fig. 9-1

Efficiency vs. output current at 48V,
typ.

Fig. 9-2 Losses vs. output current at 48V, typ.

Efficiency

1

86

87

88

89

90

91

92

85

93%

120Vac

100Vac

230Vac

5A

2

3

4

Output Current

1.5

2.5

3.5

4.5

Power Losses

0

1

2

3

4

5A

3

6

12

15

18

21

27W

120Vac

100Vac

230Vac

Output Current

9

24

Fig. 9-3

Efficiency vs. input voltage at 48V,
5A, typ.

Fig. 9-4 Losses vs. input voltage at 48V, 5A,

typ.

Efficiency

85

120

155

190

225 260Vac

88

89

90

91

Input Voltage

92

93

94%

Power Losses

8

12

16

20

24

Input Voltage

28

32W

85

120

155

190

225 260Vac

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