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.
typ.
typ.
from 24V to 20V
from 24V to 17V
from 24V to 16V
at 40A for 50ms, resistive load
at 100A for 2ms, resistive load
at 100A for 5ms, resistive load
Fig. 6-1 Output voltage vs. output current,
Fig. 6-2 Bonus time vs. output power
typ.
Output Voltage
10s
9
8
7
6
5
4
3
2
1
0
28V
24
B
20
C
16
A
12
typ
Short term <5s then auto
A
8
4
0
switching to curve
+
C
B
B
C
Continuously available
Below 20Vdc hiccup mode
Output
Current
Output Power
0
5
10 15 20 25 30 35 40A
528W 576W 624W 672W 720W 768W
Fig. 6-3 Short-circuit on output, hiccup mode (typ.)
Fig. 6-4 BonusPower® recovery time
Limitation by
Power Manager
Output
Current
Start of
short circuit
En
d of
Power
Demand
short circuit
35A
100%
t
t
Recovery Time
Bonus Power disabled
Bonus
Time
Output
Voltage
t
0
2s
17s
2s
17s
2s
17s
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
Short of
Output
Input
Voltage
Output
Voltage
Output
Voltage
Bonus
Power
150%
Bonus
Power
150%
Output
Power
100%
100%
Output
Power
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.
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www.pulspower.com Phone +49 89 9278 0 Germany
PULS [ PULS GmbH ]
