Cable
gland
Tightening torque
[Nm]
Cable diameter
[mm]
Size
1
Size
2
Size
3
V3118 ,
V4118
Size
4
V3215 , V3268 ,
V4215 , V4268
M75 30 58 – 68 - - - - - 2
6. Mechanical installation
WARNING
Read the safety chapter carefully before continuing.
6.1. Installation environment
WARNING
The environmental specifications stated in the technical data of the product must be strictly complied
with.
WARNING
Do not install the device in environments at a risk of explosion, flooding, or in the presence of
flammable fluids or solids. Ensure sufficient ventilation in the room.
Refer to local regulations when selecting the appropriate installation location.
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 118 A
• 300 mm for current intensity up to 268 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.
VASCO - VAriable Speed COntroller
14
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