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 enclosure; no other heat producing items are inside the enclosure. The load is placed outside the enclosure.
The temperature sensor inside the enclosure is placed in the middle of the right side of the device with a distance of 1 cm.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
| Case A | Case B |
|---|---|---|
Enclosure size | 110 x 180 x 165 mm | 110 x 180 x 165 mm |
Input voltage | 24 Vdc | 24 Vdc |
Load | 24 V, 8 A; (=80%) | 24 V, 10 A; (=100%) |
Temperature inside the box | 52.2°C | 59.3°C |
Temperature outside the box | 31.0°C | 31.4°C |
Temperature rise | 21.2 K | 27.9 K |