CS20.241, CS20.241-A1
C-Series
24V,
20A,
S
INGLE
P
HASE
I
NPUT
Preliminary
6.
O
UTPUT
Output voltage
nom.
24V
Adjustment range
min.
24-28V
guaranteed
max.
30V
****)
at clockwise end position of potentiometer
Factory settings
typ.
24.1V
±0.2%, at full load, cold unit, in “single use” mode
typ.
24.1V
±0.2%, at full load, cold unit, in “parallel use” mode
typ.
25.1V
at no load, cold unit, in “parallel use” mode
Line regulation
max.
10mV
85-300Vac
Load regulation
max.
100mV
in “single use” mode: static value, 0A
å
20A;
see Fig. 6-1
!
!
typ.
1000mV
in “parallel use” mode: static value, 0A
å
20A,
Ripple and noise voltage
max.
50mVpp
20Hz to 20MHz, 50Ohm
Output current
nom.
20A
at 24V, ambient temperature <60°C, see Fig. 6-1
!
nom.
24A
*)
at 24V, ambient temperature <45°C, see Fig. 6-1
!
!
!
nom.
17.1A
at 28V, ambient temperature <60°C, see Fig. 6-1
nom.
20.6A
*)
at 28V, ambient temperature <45°C, see Fig. 6-1
75A
dynamic <15ms, see Fig. 6-4, Fig. 24-1 and Fig. 24-2
This peak current is available once every five seconds.
Output power
nom.
480W
continuously available
nom.
576W
*)
short term available Power Boost
® *)
Overload behaviour
cont. current
output voltage > 13Vdc, see Fig. 6-1
hiccup mode
**)
output voltage < 13Vdc, see Fig. 6-1
Short-circuit current
min.
45A
***)
load impedance 50mOhm, see Fig. 6-3
max.
55A
***)
load impedance 50mOhm, see Fig. 6-3
!
max.
25A
***)
average (R.M.S.) current, load impedance <10mOhm, see
Fig. 6-3
min.
70A
< 15ms, load impedance <10mOhm, see Fig. 6-4
typ.
90A
< 15ms, load impedance <10mOhm, see Fig. 6-4
Output capacitance
typ.
7 000µF
included inside the power supply
*)
Power Boost: This power/ current is continuously allowed up to an ambient temperature of 45°C.
Above 45°C, do not use this power/ current longer than a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.
**)
Hiccup Mode
At heavy overloads (when output voltage falls below 13V), the power supply delivers continuous output current for 2s. After this, the
output is switched off for approx. 18s before a new start attempt is automatically performed. This cycle is repeated as long as the
overload exists. If the overload has been cleared, the device will operate normally. See Fig. 6-3.
***)
Discharge current of output capacitors is not included.
****) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not
guaranteed value which can be achieved. The typical value is about 28.5V (in “single use” mode).
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 24.1.
Peak current voltage dips
typ.
from 24V to 16V
at 40A for 50ms, resistive load
typ.
from 24V to 20V
at 100A for 2ms, resistive load
typ.
from 24V to 20.6V
at 100A for 5ms, resistive load
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN
Preliminary
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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