Danfoss VLT HVAC Drive - Page 28

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