Data Sheet

QT20.241, QT20.241-C1
Q-Series
24V, 20A, THREE PHASE INPUT
Apr. 2017 / Rev. 2.1 DS-QT20.241-EN
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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22.13. MOUNTING ORIENTATIONS
Mounting orientations other than all terminals on the bottom require a reduction in continuous output power or a
limitation in the maximum allowed ambient temperature. The amount of reduction influences the lifetime expectancy
of the power supply. Therefore, two different derating curves for continuous operation can be found below:
Curve A1 Recommended output current.
Curve A2 Max allowed output current (results in approximately half the lifetime expectancy of A1).
Fig. 22-8
Mounting
Orientation A
(Standard
orientation)
Power
Supply
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°C
4
12
16
20A
50
A
1
8
Ambient Temperature
Fig. 22-9
Mounting
Orientation B
(Upside down)
Power
Supply
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°C
4
12
16
20A
50
8
A
1
A
2
Ambient Temperature
Fig. 22-10
Mounting
Orientation C
(Table-top
mounting)
Output Current
0
10 20 30 40
60°C
4
12
16
20A
50
8
A
1
A
2
Ambient Temperature
Fig. 22-11
Mounting
Orientation D
(Horizontal cw)
Power
Supply
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°C
4
12
16
20A
50
8
A
1
A
2
Ambient Temperature
Fig. 22-12
Mounting
Orientation E
(Horizontal ccw)
Power
Supply
OUTPUT
INPUT
Output Current
0
10 20 30 40
60°C
4
12
16
20A
50
8
A
1
A
2
Ambient Temperature
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