Datasheet

CT5.241
CT-Series
3-PHASE, 24V, 5A, 120W
22.6. USE IN A TIGHTLY SEALED ENCLOSURE
When the device is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than
outside. In such situations, the inside temperature defines the ambient temperature for the device.
In the following test setup, the device is placed in the middle of the box, no other heat producing items are inside the
box. The load is placed outside the box.
The temperature sensor inside the box is placed in the middle of the right side of the power supply with a distance of
1cm.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
Case A Case B
Enclosure size 110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,
plastic
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,
plastic
Input voltage 400Vac 400Vac
Load
24V, 4A; (=80%) 24V, 5A; (=100%)
Temperature inside the box 46.0°C 50.6°C
Temperature outside the box 25.6°C 25.9°C
Temperature rise 20.4K 24.7K
May 2018 / Rev. 2.0 DS-CT5.241-EN All values are typical figures specified at 400Vac, 50Hz input voltage, 24V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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