Data Sheet

QS20.241, QS20.241-A1, QS20.241-C1
Q-Series
24V, 20A, SINGLE PHASE INPUT
9. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 91.6% 92.4% 93.9% at 24V, 20A
Average efficiency *) typ. 91.0% 91.8% 92.9% 25% at 5A, 25% at 10A, 25%
at 15A. 25% at 20A
Power losses typ. 9.0W 9.2W 10.0W at 24V, 0A
typ. 44.0W 39.6W 31.4W at 24V, 20A
*) 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 24V,
typ
Fig. 9-2 Losses vs. output current at 24V, typ.
Efficiency
4 6 8 101214161820A
86
87
88
89
90
91
Output Current
92
93
94%
1
2
0
V
a
c
1
0
0
V
a
c
230Vac
Power Losses
02468101214 20A
10
5
20
25
30
40
45W
120Vac
100Vac
230Vac
16 18
35
15
Output Current
Fig. 9-3 Efficiency vs. input voltage at 24V,
20A, typ.
Fig. 9-4 Losses vs. input voltage at 24V, 20A,
typ.
Efficiency
85 120
155
190 225 260Vac
88
89
90
91
Input Voltage
92
93
94%
Power Losses
20
25
30
35
40
45
50W
85 120
155
190 225 260Vac
Input Voltage
Oct. 2013 / Rev. 2.2 DS-QS20.241-EN
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
9/26