QS40.481

Q-Series

AC 100V

AC 120V

AC 230V

Efficiency

typ.

93.5%

93.9%

95.0%

at 48V, 20A

typ.

92.9%

93.3%

93.9%

25% at 5A, 25% at 10A, 25%

at 15A. 25% at 20A

Power losses

typ.

3.6W

3.5W

3.3W

with activated shut-down

typ.

13.5W

12.8W

12.8W

at 48V, 0A (no load)

typ.

35.6W

34.0W

30.1W

at 48V, 10A (half load)

typ.

66.7W

62.4W

50.5W

at 48V, 20A (full load)

*)

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. 12-1 Efficiency vs. output current at 48V,

typ.

Fig. 12-2 Losses vs. output current at 48V,

typ.

Efficiency

4

6

8

1012

1416

18 20A

88

89

90

91

92

93

Output Current

94

95

96%

120Vac

100Vac

230Vac

Power Losses

0

2468 10 12 14

20A

10

0

30

40

50

70

80W

120Vac

100Vac

230Vac

16 16

60

20

Output Current

Fig. 12-3 Efficiency vs. input voltage at 48V,

20A, typ.

Fig. 12-4 Losses vs. input voltage at 48V, 20A,

typ.

Efficiency

85

120

155

190

225 260Vac

89

90

91

92

Input Voltage

93

94

95%

Power Losses

20

30

40

50

60

70

80W

85

120

155

190

225 260Vac

Input Voltage

Jul. 2015 / Rev. 1.2 DS-QS40.481-EN

All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany

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