Data Sheet
QS20.241, QS20.241-A1, QS20.241-C1
Q-Series
24V, 20A, SINGLE PHASE INPUT
Peak current capability (up to several milliseconds)
The power supply can deliver a peak current which is higher than the specified short term current. This helps to start
current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be
discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 22.2.
Peak current voltage dips typ. from 24V to 20V at 40A for 50ms, resistive load
typ. from 24V to 17V at 100A for 2ms, resistive load
typ. from 24V to 16V at 100A for 5ms, resistive load
Fig. 6-1 Output voltage vs. output current,
typ.
Fig. 6-2 Bonus time vs. output power
Output Voltage
0
0 5 10 20 25
4
8
12
28V
16
20
24
40A15 30
Output
Current
35
A
B
A
B
Short term <5s then auto
switching to curve +
Below 20Vdc hiccup mode
C
C
Continuously available
B
C
0
528W 576W 624W 672W 720W
768
W
1
2
3
7
4
5
6
8
9
10s
Output Power
m
i
n
m
a
x
typ
Fig. 6-3 Short-circuit on output, hiccup mode (typ.) Fig. 6-4 BonusPower
®
recovery time
Output
Current
0
35A
17s
17s17s 2s 2s2s
t
S
t
a
r
t
o
f
s
h
o
r
t
c
i
r
c
u
i
t
E
n
d
o
f
s
h
o
r
t
c
i
r
c
u
i
t
Power
Demand
100%
t
t
Limitation by
Power Manager
Output
Voltage
Bonus Power disabled
Bonus
Time
Recovery Time
The BonusPower
®
is available as soon as power comes on and immediately after the end of an output short circuit or
output overload.
Fig. 6-5 BonusPower
®
after input turn-on Fig. 6-6 BonusPower
®
after output short
100%
Output
Voltage
Input
Voltage
Bonus
Power
Output
Power
150%
Short of
Output
100%
Output
Voltage
Bonus
Power
Output
Power
150%
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 +49 89 9278 0 Germany
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