Nastec MIDA 203, Руководство по установке, использованию и техническому обслуживанию

Страница: 14 / 56

WARNING
The degree of protection of the device is only ensured if, at the end of the installation, the cover
screws and the cable glands have been properly tightened. Close the holes of unused cable glands
with the appropriate plugs.
Protect the device from direct exposure to weather and sunlight.
Do not leave the device installed without cover or with the cable glands open, even if not connected
to the power supply. The infiltration of dust, water or humidity may irreparably damage the device.
WARNING
To ensure uninterrupted operation, the device can gradually and automatically reduce performance
before shutting down following over-temperature. However, prolonged operation above the rated
temperature leads to a reduction in the life of the device.
6.2. Cooling
The device is cooled primarily by forced air circulation through the heat sink element.
In addition to the heat sink, the device also uses the remaining surfaces to cool itself. It is therefore necessary to
ensure sufficient space around the device during installation.
In particular, the distance between the suction and discharge side of the heat sink and the other surfaces must be
at least:
• 150 mm for current intensity up to 18 A
• 200 mm for current intensity up to 30 A
• 250 mm for current intensity up to 44 A
On the other sides, maintain a minimum distance of 100 mm to ensure cooling and to make installation and
maintenance operations easier.
During operation, the surfaces of the device can become hot enough to cause burns. Do not touch them.
In the case of installation inside electric cabinet, it is necessary to guarantee the appropriate air flow for the heat
dissipation of all the components. The heat released by the device may be calculated from its conversion efficiency.
WARNING
Do not place any heat-generating elements (outlet filters) on the suction side of the device to prevent
dangerous overheating.
6.3. Mechanical assembly of size 2 devices
The size 2 devices are equipped with a quick connection system that allows carrying out both power and signal
electrical connections on the fixed part, called "base", while the mobile part, called "power", is applied later.
This allows working smoothly during electrical connections without running the risk of damaging the power part. It
also facilitates quick power replacement in case of failure without the need to remove connections.
To open the device, please follow the instructions shown in the figure and proceed with caution.
MIDA
14