Datasheet

QT20.241, QT20.241-C1
Q-Series
24V, 20A, THREE PHASE INPUT
Oct. 2006 / Rev. 1.0 DS-QT20.241-EN
All parameters are specified at 24V, 20A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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6. DC-INPUT
The QT20 series shall not be used with a DC-input voltage without consulting PULS.
Check QTD20.241 for DC-input voltage. (special version for intermediate bus systems, drive systems)
7. INPUT INRUSH CURRENT
An active inrush limitation circuitry limits the input inrush current after turn-on of the input voltage and after short
input voltage interruptions.
The charging current into EMI suppression capacitors is disregarded in the first milliseconds after switch-on.
3AC 400V 3AC 480V
Inrush current max. 10A
peak
10A
peak
-25°C to +70°C
typ. 3A
peak
3A
peak
-25°C to +70°C
Inrush energy
max. 1A
2
s 1A
2
s -25°C to +70°C
Inrush delay
typ. 270ms 220ms
Fig. 7-1 Input inrush current, typical behavior
Input Current
Input Voltage
Output Voltage
A
B
A: Inrush delay
B: Start-up delay
Input: 3x400Vac
Output: 24V, 20A
Ambient: 25°C
Upper curve: Input current 2A / DIV
Medium curve: Input voltage 1000V / DIV
Lower curve: Output voltage 50V / DIV
Time basis: 100ms / DIV