Safety
Information
Introduction
Product
information
System
design
Mechanical
installation
Electrical
installation
Getting
started
Optimisation
Parameters
Technical
data
Component
sizing
Diagnostics
Unidrive SP Regen Installation Guide
75
Issue Number: 2 www.controltechniques.com
6.3 Cable and fuse 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 maximum supply
fault current given in Table 6-2 to Table 6-2.
Table 6-2 Size 1 to 3 input current, fuse and cable size ratings
Model
Maximum
continuous
input
current
A
European
USA
Fuse
rating
IEC gG
A
Cable size
EN60204
Fuse
rating
IEC gG
A
Cable
size
UL508C
Input
mm
2
Input
AWG
SP1201
5.2
10
1.0
10
18
SP1202
6.8
10
1.0
10
16
SP1203
9.6
12
1.0
12
14
SP1204
11
12
1.0
12
14
SP2201
15.5
20
2.5
20
14
SP2202
22
25
4.0
25
10
SP2203
28
32
6.0
32
8
SP3201
42
50
16
50
16
SP3202
54
63
25
63
25
SP1405
8.8
12
1.0
15
14
SP1406
11
16
1.5
15
14
SP2401
15.3
20
2.5
20
14
SP2402
21
25
4.0
25
10
SP2403
29
32
6.0
30
8
SP2404
29
32
6.0
30
8
SP3401
35
40
10
40
6
SP3402
43
50
16
45
6
SP3403
56
63
25
60
4
SP3501
5.4
8
1.0
8
18
SP3502
6.1
8
1.0
8
16
SP3503
8.4
12
1.0
12
14
SP3504
11
12
1.0
12
14
SP3505
16
20
2.5
20
14
SP3506
22
25
4.0
25
10
SP3507
27
32
6.0
32
8
Summary of Contents for SP1201
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