Optidrive VTC – User Guide
8
www.invertek.co.uk
3.4.
Enclosure mounting
For applications that require a higher IP rating than the IP20 offered by the standard drive, the drive must be mounted in a suitable metallic
enclosure. The following guidelines should be observed for these applications:
For IP20 Optidrives, install in a suitable enclosure, according to EN60529 if specific Ingress Protection ratings are required.
Enclosures should be made from a thermally conductive material
Where vented enclosures are used, there should be venting above and below the drive to ensure good air circulation – see the diagram
below. Air should be drawn in below the drive and expelled above the drive.
In any environments where the conditions require it, the enclosure must be designed to protect the Optidrive against ingress of airborne
dust, corrosive gases or liquids, conductive contaminants (such as condensation, carbon dust, and metallic particles) and sprays or
splashing water from all directions.
High moisture, salt or chemical content environments should use a suitably sealed (non-vented) enclosure.
Enclosure Front View
Enclosure Side View
The enclosure design and layout should ensure that the adequate ventilation paths and clearances are left to allow air to circulate through the
drive heatsink. Invertek Drives recommend the following minimum sizes for drives mounted in non-ventilated metallic enclosures:-
Enclosure Minimum Dimensions
Drive Power rating
L
W
D
G
Size 2 1.5kW 230V / 2.2kW 400V
400
300
300
60
Size 2 2.2kW 230V / 4kW 400V
600
450
300
100
For drives mounted in free ventilated enclosures of force ventilated enclosures, Invertek Drives recommend the following minimum sizes and
airflow requirements:-
Drive Power
Rating
Free-Vented unit
Force-vented unit
L
W
D
G
L
W
D
G
Air Flow
Size 2 1.5 kW
400
300
150
75
275
150
150 50
> 15m
3
/h
Size 2 4 kW
600
400
250
100
320
200
200 75
> 45m
3
/h
Size 3 15 kW
800
600
300
150
400
250
200 100 > 80m
3
/h
Size 4 22 kW
100
0
600
300
200
800
500
250 130 > 300m
3
/h
Size 4 45 kW
-
-
-
-
800
500
250 130 > 300m
3
/h
Size 5 90 kW
-
-
-
-
1500 600
400 200 > 900m
3
/h
Size 6 160 kW
-
-
-
-
1600 600
400 250 >1000m
3
/h
