Unidrive M702 User Guide
59
Issue Number: 3
4.8 Ratings
The input current is affected by the supply voltage and impedance.
Typical input current
The values of typical input current are given to aid calculations for power flow and power loss.
The values of typical input current are stated for a balanced supply.
Maximum continuous input current
The values of maximum continuous input current are given to aid the selection of cables and fuses. These values are stated for the worst case
condition with the unusual combination of stiff supply with bad balance. The value stated for the maximum continuous input current would only be
seen in one of the input phases. The current in the other two phases would be significantly lower.
The values of maximum input current are stated for a supply with a 2 % negative phase-sequence imbalance and rated at the supply fault current
given in Table 4-4.
Table 4-4 Supply fault current used to calculate maximum input currents
Table 4-5 AC Input current and fuse ratings (200 V)
Model
Symmetrical fault level (kA)
All
100
Fuses
The AC supply to the drive must be installed with suitable protection against overload and short-circuits. Table 4-5 shows recommended
fuse ratings. Failure to observe this requirement will cause risk of fire.
Model
Typical
input
current
Maximum
continuous
input
current
Maximum
overload
input
current
Fuse rating
IEC
UL / USA
Nominal
Maximum
Class
Nominal
Maximum
Class
A
A
A
A
A
A
A
03200050
8.2
10.4
15.8
16
25
gG
16
20
CC
or J
03200066
9.9
12.6
20.9
20
20
03200080
14
17
25
25
25
03200106
16
20
34
25
04200137
17
20
30
25
25
gG
25
25
CC
or J
04200185
23
28
41
32
32
30
30
05200250
24
31
52
40
40
gG
40
40
CC
or J
06200330
42
48
64
63
63
gG
60
70
CC
or J
06200440
49
56
85
70
07200610
58
67
109
80
80
gG
80
80
CC
or J
07200750
73
84
135
100
100
100
100
07200830
91
105
149
125
125
125
125
08201160
123
137
213
200
200
gR
200
200
HSJ
08201320
149
166
243
225
225
WARNING
Summary of Contents for Unidrive M702
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