User manual
QS3.241
Q-Series
24V, 3.4A, SINGLE PHASE INPUT
Nov. 2006 / Rev. 1.0 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted..
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9. HOLD-UP TIME
AC 100V AC 120V AC 230V
Hold-up Time typ. 28ms 41ms 174ms 3.4A, 24V, see
Fig. 9-1
typ. 58ms 88ms 347ms 1.7A, 24V, see Fig. 9-1
Fig. 9-1 Hold-up time vs. input voltage Fig. 9-2 Shut-down behavior, definitions
10
30
50
70
90
190ms
85 120 155 190 230Vac
Input Voltage
110
130
150
Hold-up
Time
170
24V, 3.4A, min.
24V, 3.4A, typ.
24V, 1.7A, min.
24V, 1.7A, typ.
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Intput
Voltage
Note: At no load, the hold-up time can be up to one minute. The green DC-ok lamp is on during this time.
10. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 87.1% 88.7% 90.0% 3.4A, 24V
Power losses typ. 12.1W 10.4W 9.1W 3.4A, 24V
typ. 0.9W 1.0W 2.1W 0A, 24V
Fig. 10-1 Efficiency vs. output current at 24V Fig. 10-2 Losses vs. output current at 24V
Efficiency
0.5 1.0 3.5
A
87
88
89
90
Output Current
91
92%
1
2
0
V
a
c
1
0
0
V
a
c
2
3
0
V
a
c
86
2.0 3.01.5 2.5
Power Losses
00.5 3.5
A
0
2
4
6
8
10
12W
120Vac
100Vac
1.0 1.5 2.0 2.5 3.0
230Vac
Output Current
Fig. 10-3 Efficiency vs. input voltage, 24V, 3.4A Fig. 10-4 Losses vs. input voltage, 24V, 3.4A
Efficiency
85 120 155 190 225 260
Va
c
86
87
88
89
Input Voltage
90
91
92%
Power Losses
0
3
6
9
12
Input Voltage
15
18W
85 120 155 190 225 260
Va
c