Danfoss AHF005 Design Manual page 26

How to Install
6 6
NOTE
It is not allowed to use one common 3 poled contactor
with several paralleled Advanced Harmonic Filters.
NOTE
The AHF filters in stand-by and under low load
conditions, when the capacitors are not disconnected,
boost the input voltage with up to 5 %. That means that
the voltage at the drive terminals is up to 5 % higher
than the voltage at the input of the filter. This should be
considered at the design of the installation. Special care
should be taken in 690 V applications where the voltage
tolerance of the drive is reduced to + 5 %, unless a
capacitor disconnect is used.
NOTE
Only switch the contactor at less than 20 % output
power. Allow minimum 25 s for the capacitors to
discharge before re-connecting
26
AHF005/010 Design Guide
Current rating
380-415 V, 50 and
1)
min. 50 % of the nominal load
®
MG.80.C3.02 - VLT is a registered Danfoss trademark
Current
rating Danfoss Contac-
440-480 V, tors for AHF005
60 Hz 60 Hz and AHF010
A A
10 10
14 14
22 19
29 25
34 31
40 36
55 48
66 60
82 73
96 95
133 118
171 154
204 183
251 231
304 291
325 355
380 380
480 436
Alternative
type AC3
Contactor
1)
Type rating KVAr
CI 9 1
CI 9 2
CI 9 4
CI 9 6
CI 16 7
CI 16 7
CI 16 9
CI 61 11
CI 61 15
CI 61 17
CI 61 22
CI 61 29
CI 61 36
CI 110 44
CI 110 51
CI 110 58
CI 110 66
CI 141 88