Use in a tightly sealed enclosure
When the power supply is installed in a sealed enclosure, the temperature inside the enclosure is higher than outside. In this case, the temperature inside the enclosure is considered the ambient temperature for the power supply.
The following measurement results can be used as reference for estimating the temperature rise inside the enclosure.
The power supply is positioned at the center of the enclosure. There are no other heat-generating elements in the enclosure.
The temperature sensor in the enclosure is positioned at the center on the right side of the power supply with a distance of 1cm.
| Case A | Case B | Case C | Case D |
|---|---|---|---|---|
Housing size | 110x180x165mm Rittal housing, protection class IP66 PK 9516 100, plastic | 110x180x165mm Rittal housing, protection class IP66 PK 9516 100, plastic | 180x180x165mm Rittal housing, protection class IP66 PK 9519 100, plastic | 180x180x165mm Rittal housing, protection class IP66 PK 9519 100, plastic |
Input voltage | 230Vac | 230Vac | 230Vac | 230Vac |
Load | 24V, 8A; (=80%) | 24V, 10A; (=100%) | 24V, 8A; (=80%) | 24V, 10A; (=100%) |
Temperature inside the housing | 48.6°C | 53.8°C | 42.0°C | 48.1°C |
Temperature outside the housing | 26.3°C | 26.6°C | 25.8°C | 26.2°C |
Temperature increase | 22.3K | 27.3K | 16.2K | 21.9K |