Voltage
[V]
Internal fan
type 1
External fan
type 1
Internal fan
type 2
External fan
type 2
380–415
✓ ✓
– –
440–480
✓ ✓
– –
600
✓ ✓
– –
500–690 – –
✓ ✓
Table 4.1 Overview of Voltage Sizes/Fan Types
NOTICE
IP21/NEMA 1 UPGRADE KIT
An IP21/NEMA 1 upgrade kit is available for the IP20
versions of the VLT
®
Advanced Harmonic Filter AHF
005/AHF 010. See chapter 5.3.1 IP21/NEMA 1 Upgrade Kit
for further details.
4.1.4.2 Requirements for IP00
NOTICE
IP00 - FORCED AIR REQURIED
When mounting IP00 versions, pay attention to the
specic requirements for cooling and ventilation. Ensure
that the minimum required forced air speed and air
volume are observed as part of the installation of IP00
versions in panels. See Table 4.2 and Table 4.3 for details.
The IP00 versions do not have integrated fans and
ventilation channels. Thus, it is important that the airow
passes through the lter to avoid that the lter and other
components in the cabinet overheat. When installing a
lter in deep and/or wide enclosures, there is a high risk
that the air bypasses the lter and therefore does not
provide the required cooling. To control the airow in
wide/deep cabinets, mount air baes at the top and at
the bottom. See Illustration 4.11 and Illustration 4.12.
Wrong installations - air bypassing the lter
Illustration 4.8 and Illustration 4.9 show a lter installed in a
deep/wide cabinet without air baes to control the
airow. The illustrations show that part of the airow
bypasses the lter, which results in an overheated lter.
1 Outlet for outgoing airow
2 Inlet for ingoing airow
3 AHF lter
Illustration 4.8 Wrong Installation - Airow Bypassing the Filter
- Front View
Requirements for Installati... Design Guide
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