20
Motor Fuse Links
Higher Current Ratings
Higher ratings than those tabulated above can be obtained by using fuse links connected in parallel. Special fixing arrangements for
connecting up to 3 fuse links in parallel, are available. Please contact Bussmann application engineers for more details. The code
designations for these arrangements are given in ‘How to Order’ (page 61), dimensional drawings are given on page 26.
Selection Tables
Table of ratings for motor fuses 3.6 - 7.2kV to DIN dimensions
3.6WDOSJ50
3.6WDOSJ63
3.6WDOSJ80
3.6WDOSJ100
3.6WDOSJ125
3.6WFOSJ160
3.6WFOSJ200
3.6WDLSJ50
3.6WDLSJ63
3.6WDLSJ80
3.6WDLSJ100
3.6WDLSJ125
3.6WFLSJ160
3.6WFLSJ200
3.6WKLSJ250
3.6WKLSJ315
3.6WKLSJ400
7.2WFMSJ25
7.2WFMSJ31.5
7.2WFMSJ40
7.2WFMSJ50
7.2WFMSJ63
7.2WFMSJ80
7.2WFMSJ100
7.2WFMSJ125
7.2WFMSJ160
7.2WKMSJ200
7.2WKMSJ224
7.2WKMSJ250
7.2WKMSJ315
7.2WKMSJ355
3.6
7.2
50
63
80
100
125
160
200
50
63
80
100
125
160
200
250
315
400
25
31.5
40
50
63
80
100
125
160
200
224
250
315
355
50
63
180
225
288
360
450
600
152
171
190
300
820
84
96
107
122
133
262
300
337
500
960
1000
5.36
3.68
2.88
2.16
1.73
1.28
0.938
7.73
5.9
4.12
3.38
2.85
1.74
1.42
0.741
0.507
0.401
33.9
25.4
17.8
14.8
11.6
8.12
5.33
3.19
2.23
1.79
1.59
1.23
0.869
0.724
20
21
27
31
39
47
52
27
32
37
46
61
80
67
69
90
33
40
56
53
61
72
74
70
79
99
110
107
120
125
192
292
442
1.8X10
3
3.8X10
3
6.3X10
3
9.8X10
3
1.5X10
4
3.1X10
4
5.7X10
4
1.8X10
3
3.1X10
3
6.3X10
3
9.5X10
3
1.3X10
4
3.4X10
4
5.1X10
4
1.9X10
5
4.0X10
5
6.4X10
5
1.4X10
2
3.1X10
2
6.1X10
2
1.2X10
3
1.9X10
3
3.8X10
3
9.8X10
3
2.4X10
4
5.0X10
4
8.8X10
4
1.1X10
5
2.2X10
5
4.5X10
5
6.4X10
5
2.4X10
4
4.5X10
4
8.0X10
4
1.1X10
5
2.2X10
5
6.2X10
5
1.1X10
6
2.4X10
4
4.5X10
4
8.0X10
4
1.2X10
5
1.8X10
5
4.1X10
5
7.2X10
5
2.4X10
6
5.0X10
6
7.0X10
6
2.1X10
3
4.7X10
3
8.0X10
3
1.5X10
4
3.0X10
4
5.8X10
4
1.3X10
5
2.4X10
5
7.0X10
5
1.3X10
6
1.6X10
6
1.6X10
6
3.1X10
6
3.9X10
6
51
76
51
76
1.1
2.1
1.63
3.16
5.2
Part Number
Current
Rating
Length
Diameter
In
A
Un
kV
I1
kA
mm
m
W
A2s
mm
Weight
Breaking
Capacity
I3
A
Minimum
Breaking Current
Cold resistance and watts loss
in free air at rated current
Joule
Intergral
(I2t)
Voltage
Rating
Maximum
Total Clearing
Minimum
Pre-Arcing
kg
Table of ratings for motor fuses 2.75 - 5.5kV to USA dimensions
2.75VFRHA*R
2.75VKRHA*R
2.75VKRHK*R
5.5VFNHA*R
5.5VKNHA*R
5.5VKNHK*R
2.75
5.5
2R
3R
4R
6R
9R
12R
18R
24R
2R
3R
4R
6R
9R
12R
18R
24R
60
180
229
257
525
500
180
229
257
525
500
6.15
4.04
2.69
1.62
1.15
1.03
0.577
0.514
8.35
5.48
3.65
2.31
1.63
1.45
0.815
0.725
52
57
62
65
70
80
140
156
70
77
85
91
99
110
198
220
276
403
8.1x103
1.9x104
4.2x104
3.9x104
8.8x104
1.1x105
3.5x105
4.5x105
8.1x103
1.9x104
4.2x104
3.9x104
8.8x104
1.1x105
3.5x105
4.5x105
2.8x104
7.5x104
1.4x105
3.4x105
8.4x105
1.2x106
3.2x106
5.5x106
2.8x104
7.9x104
1.6x105
3.6x105
8.8x105
1.3x106
3.4x106
5.8x106
76
2.5
5.2
3.8
7.8
Part Number
Current
Rating
Length
Diameter
In
A
Un
kV
I1
kA
mm
m
W
A2s
mm
Weight
Breaking
Capacity
I3
A
Minimum
Breaking Current
Cold resistance and watts loss
in free air at rated current
Joule
Intergral
(I2t)
Voltage
Rating
Maximum
Total Clearing
Minimum
Pre-Arcing
kg
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