￭
Example: upright position, frames R4 to R9
Hood (in the cooling air channel;
required for UL Type 12)
1
Top flange bracket2
Mounting plate3
Lifting hole4
Drive heatsink in the cooling air
channel
5
Side flange bracket6
Drive front side7
Bottom flange bracket8
Degree of protection
The degree of protection of the back of the drive (heatsink) is always IP55 (UL
Type 12) regardless of the cover. When the cover is not in position, the degree of
the front part of the drive is IP20 (UL Open Type). The IP55 (UL Type 12) cover can
only be in position for frame R3.
￭
Special requirements
IP21 (UL Type 1)Frame size
Insert a sealing plug and install an extra internal fan, or remove the front
cover. The cooling fan can be ordered with the codes given in section Ordering
codes below.
R1
R2
R3
Reason for installing an extra fan is that the sealing plug will prevent cooling
air flow from below to the control circuits of the drive.
R4
Exception: In a dry environment, you can leave the cover in position without
inserting the sealing plug.
Hardware description 11
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