6.2.4 Fuses
In order to protect the installation against electrical and fire
hazards, all filters in an installation must be short-circuit and
over-current protected according to national/international
regulations.
To protect both frequency converter and filter please choose
the type of fuses recommended in the VLT
®
Design Guide.
The maximum fuse rating per filter size is listed below.
Filter current
Maximum size of fuse
380V, 60Hz
400V, 50Hz
460V, 60Hz
[A]
[A]
[A]
10
10
16
14
14
35
22
19
35
29
25
50
34
31
50
40
36
63
55
48
80
66
60
125
82
73
160
96
95
250
133
118
250
171
154
315
204
183
350
251
231
400
304
291
500
325
355
630
380
380
630
480
436
800
In applications where filters are paralleled it might be
necessary to install fuses in front of each filter and in front of
the frequency converter.
How to Install
AHF005/010 Design Guide
36
MG.80.C4.02 - VLT
®
is a registered Danfoss trademark
6
6
Содержание VLT AHF005
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