Data Sheet

QT20.241, QT20.241-C1
Q-Series
24V, 20A, THREE PHASE INPUT
Apr. 2017 / Rev. 2.1 DS-QT20.241-EN
6. OUTPUT
Output voltage nom. 24V
Adjustment range min. 24-28V Guaranteed
max. 30V
***)
At clockwise end position of potentiometer
Factory setting typ. 24.1V ±0.2%, at full load, cold unit
Line regulation max. 10mV At 3x 323-552Vac voltage change
Load regulation max. 100mV Static value, 0AÆ20A
Ripple and noise voltage max. 100mVpp 20Hz to 20MHz, 50Ohm
Output current – continuous nom. 20A At 24V, see Fig. 6-1
nom. 17.5A At 28V, see Fig. 6-1
Output current – up to 4s
*)
nom. 30A At 24V, see Fig. 6-1 and Fig. 6-2
nom. 26A At 28V, see Fig. 6-1 and Fig. 6-2
Output power – continuous nom. 480W At 24-28V
Output power – up to 4s
*)
nom. 720W
*)
At 24-28V
BonusPower
®
time typ. 4s Duration until the output voltage dips, see Fig. 6-2
BonusPower
®
recovery time typ. 7s Overload free time to reset power manager, see Fig.
6-3
Overload behavior cont. current See Fig. 6-1
Short-circuit current
**)
min. 20A Continuous, load impedance 50mOhm, see Fig. 6-1
max. 23A Continuous, load impedance 50mOhm, see Fig. 6-1
min. 30A Short-term (4s), load impedance 50mOhm, see Fig. 6-1
max. 34A Short-term (4s), load impedance 50mOhm, see Fig. 6-1
max. 25A Continuous, load impedance <10mOhm
Output capacitance typ. 950μF Included in the power supply
*) BonusPower
®
, short term power capability (up to typ. 4s)
The power supply is designed to support loads with a higher short-term power requirement without damage or shutdown. The short-
term duration is hardware controlled by an output power manager. This BonusPower
®
is repeatedly available. Detailed information
can be found in chapter 22.1. If the power supply is loaded longer with the BonusPower
®
than shown in the bonus-time diagram (see
Fig. 6-2), the max. output power is automatically reduced to 480W.
**) 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.
6/27
All parameters are typical values specified at 24V, 20A, 3x 400Vac, 50Hz, symmetrical mains voltages, 25°C ambient and after
a 5 minutes run-in time unless otherwise noted.
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