Data Sheet

QT20.241, QT20.241-C1
Q-Series
24V, 20A, THREE PHASE INPUT
Apr. 2017 / Rev. 2.1 DS-QT20.241-EN
Switching Frequencies
The power supply has three converters with three different switching frequencies
included. One is nearly constant. The others are input voltage and load dependent.
Switching frequency 1 100kHz Resonant converter, nearly constant
Switching frequency 2 30kHz to 90kHz Boost converter, load dependent
Switching frequency 3 40kHz to 220kHz PFC converter, input voltage and load dependent
15. ENVIRONMENT
Operational temperature
*)
-25°C to +70°C (-13°F to 158°F) Reduce output power according Fig. 15-1
Storage temperature -40 to +85°C (-40°F to 185°F) For storage and transportation
Output de-rating 12W/°C 60-70°C (140°F to 158°F)
Humidity
**)
5 to 95% r.H. IEC 60068-2-30
Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
2 hours / axis
IEC 60068-2-6
Vibration random 0.5m²(s³)
2 hours / axis
IEC 60068-2-64
Shock 30g 6ms, 20g 11ms
3 bumps / direction, 18 bumps in total
IEC 60068-2-27
Altitude 0 to 2000m (0 to 6 560ft) Without any restrictions
2000 to 6000m (6 560 to 20 000ft) Reduce output power or ambient
temperature, see Fig. 15-2
IEC 62103, EN 50178, overvoltage category II
Altitude de-rating 30W/1000m or 5°C/1000m > 2000m (6500ft), see Fig. 15-2
Over-voltage category III IEC 62103, EN 62477-1, altitudes up to 2000m
II For altitudes from 2000m to 6000m
Degree of pollution 2 IEC 62103, EN 62477-1, not conductive
LABS compatibility The unit does not release any silicone or other LABS-critical substances and is suitable for
use in paint shops.
*) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below the
unit. Curves and figures for operation on only 2 legs of a 3-phase system can be found in chapter 22.4.
**) Do not energize while condensation is present.
Fig. 15-1 Output current vs. ambient temp. Fig. 15-2 Output current vs. altitude
Allowed Output
Current at 24V
14/27
0
-25 0 20 40
70°C
5
10
15
20
25
30A
c
o
n
t
i
n
u
o
u
s
60
Ambient Temperature
f
o
r
t
y
p
.
4
s
Allowed Output
Current at 24V
0
0 2000 4000 6000m
5
10
15
20
25
30A
c
o
n
t
i
n
u
o
u
s
Altitude
f
o
r
t
y
p
.
4
s
A
.
.
.
T
a
m
b
<
6
0
°
C
B
.
.
.
T
a
m
b
<
5
0
°
C
C
.
.
.
T
a
m
b
<
4
0
°
C
A
B
C
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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