Table 12: Drive fuses, 525-690 V, Bussmann (IEC)
Frame
Type
I
L
[A]
Catalogue number of the
fuse
Fuse
rating
[A]
Number
of fuses
needed
Fuse
size
Minimum
prospective
short
circuit
current [A]
MR8
0080 7
80
170M3814D
160
3
1
650
0100 7
100
170M3815D
200
3
1
950
0125 7
125
170M3816D
250
3
1
1300
MR9
0144 7
144
170M3817D
315
3
1
1700
0170 7
170
170M3819D
400
3
1
2400
0208 7
208
170M4863D
450
3
1
2800
MR10
0261 7
261
170M5811D
550
3
2
3400
0325 7
325
170M5813D
700
3
2
4800
0385 7
385
170M5814D
800
3
2
5750
0416 7
416
170M6814D
1000
3
3
7500
MR12
0460 7
460
170M5811D
550
6
2
3400
0520 7
520
170M5812D
630
6
2
4000
0590 7
590
170M5813D
700
6
2
4800
0650 7
650
170M5813D
700
6
2
4800
0750 7
750
170M5814D
800
6
2
5750
0820 7
820
170M6813D
900
6
3
6000
5.1.2
CABLE AND FUSE SIZES, NAM
Fuses that are contained in the product (-FC1) are suitable for both short circuit and branch
circuit protection (see Table 15 and Table 16). Do not use other fuses than these.
NOTE!
The overcurrent protection of parallel cables must be done with separate fuses.
Make sure that the operation time of the fuse is less than 0.4 seconds. The operation time
agrees with the fuse type and the impedance of the supply circuit.
The table also shows the typical symmetrically shielded copper and aluminum types of the
cables that can be used with the AC drive.
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