Danfoss VLT AHF 005

5.2 Selection Tables
5.2.1 Terminology Used in Selection Tables
Table 5.2 explains in detail the terminology used in the selection tables, see Table 5.3 to Table 5.7.
Value Description
Power rating
Frequency converter kW power rating from the type code. The power ratings in the tables refer to the
actual frequency converter operating conditions. Changing operating conditions between HO and NO
changes the frequency converter operating conditions. The selection of the VLT
®
Advanced Harmonic
Filter AHF 005/AHF 010 must match the actual operating conditions of the frequency converter.
Input current
The maximum input current ratings of the frequency converter in the specic mains supply voltage
ranges.
T4, T5, T6, and T7 The frequency converter type code voltage class.
Current rating Filter current rating at nominal load. Current ratings are combined values when paralleling lters.
AHF 005 Performance level of 5% THDi or better at system level with nominal load.
AHF 010 Performance level of 10% THDi or better at system level with nominal load.
Ordering numbers AHF ordering numbers. The selected AHF must match the actual mains type.
Power loss Maximum lter power losses during nominal loading.
Acoustic noise level Maximum acoustic noise level from lters at 1 m (3.3 ft) distance.
Enclosure size, enclosure
protection ratings, and fan
concept:
•
[Enclosure size] IP20 if1.
•
[Enclosure size] IP20 ef1.
•
[Enclosure size] IP20 if2.
•
[Enclosure size] IP20 ef2.
Conrming the fan concepts and reference to mechanical drawings as:
•
[Enclosure size] IP20 with internal fan type 1.
•
[Enclosure size] IP20 with external fan type 1.
•
[Enclosure size] IP20 with internal fan type 2.
•
[Enclosure size] IP20 with external fan type 2.
IP00
Enclosure protection rating IP00. Forced cooling cools the AHF lters. IP00 types have no fans, and a
minimum required airow must be ensured separately during installation of the IP00 versions in
panels. See chapter 4.1.4 Ventilation and Cooling Requirements for details.
IP20
Enclosure protection rating IP20. Built-in fans cool IP20 types as part of the mechanical design. IP21/
NEMA 1 upgrade kits are available for all IP20 types as separate options.
Table 5.2 Terminology Used in the Selection Tables
Selection of Advanced Harmo... Design Guide
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