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4-18
. Fuses must be designed for protection in a circuit capable of supplying a maximum of
100,000 A
rms
(symmetrical), 500 V / 600 V maximum.
Non-UL compliance
If UL/cUL is not to be complied with, Danfoss recommends using the fuses mentioned in table
4.2, which will ensure compliance with EN50178:
In case of malfunction, not following the recommendation may result in unnecessary damage to
the adjustable frequency drive.
VLT HVAC
Max. fuse size
Voltage
Type
200-240 V
K25-1K1
16A
1
200-240 V
type gG
1K5
16A
1
200-240 V
type gG
2K2
25A
1
200-240 V
type gG
3K0
25A
1
200-240 V
type gG
3K7
35A
1
200-240 V
type gG
5K5
50A
1
200-240 V
type gG
7K5
63A
1
200-240 V
type gG
11K
63A
1
200-240 V
type gG
15K
80A
1
200-240 V
type gG
18K5
125A
1
200-240 V
type gG
22K
125A
1
200-240 V
type gG
30K
160A
1
200-240 V
type gG
37K
200A
1
200-240 V
type aR
45K
250A
1
200-240 V
type aR
380-500 V
11K
63A
1
380-480 V
type gG
15K
63A
1
380-480 V
type gG
18K
63A
1
380-480 V
type gG
22K
63A
1
380-480 V
type gG
30K
80A
1
380-480 V
type gG
37K
100A
1
380-480 V
type gG
45K
125A
1
380-480 V
type gG
55K
160A
1
380-480 V
type gG
75K
250A
1
380-480 V
type aR
90K
250A
1
380-480 V
type aR
Table 4.2: Non-UL fuses 200 V to 500 V
1) Max. fuses - see national/international regulations to select an appropriate fuse size.
4. Electrical installation
VLT
®
HVAC Drive Instruction Manual
28
MG.11.A4.22
-
VLT
®
is a registered Danfoss trademark
4