Field Mounting - Danfoss VLT FC 102 Series Design Manual

Mechanical Installation
Figure 5.4 Proper Mounting with Railings
Item Description
1 Backplate
Table 5.5 Legend to Figure 5.4
Figure 5.5 Mounting on a Non-solid Back Wall
MG11BC22
Design Guide
1
2
3
1
4
Danfoss A/S © Rev. 06/2014 All rights reserved.
Mounting enclosure types A4, A5, B1, B2, C1 and C2 on a
non-solid back wall, the adjustable frequency drive must
be provided with a backplate, "1", due to insufficient
cooling air over the heatsink.
Enclosure IP20 IP21
A2 * *
A3 * *
A4/A5 - -
B1 - *
B2 - *
B3 * -
B4 1.48 [2] -
C1 - *
C2 - *
C3 1.48 [2] -
C4 1.48 [2] -
* = No screws to tighten
- = Does not exist
Table 5.6 Tightening torque for covers (lb/ft [Nm])

5.1.5 Field Mounting

For field mounting the IP21/IP4X top/TYPE 1 kits or IP54/55
units are recommended.
IP55 IP66
- -
- -
1.48 [2] 1.48 [2]
1.62 [2.2] 1.62 [2.2]
5
1.62 [2.2] 1.62 [2.2]
- -
- -
1.62 [2.2] 1.62 [2.2]
1.62 [2.2] 1.62 [2.2]
- -
- -
91
5