E300 Installation and Commissioning Guide
73
Issue Number: 1
4.12
Cable selection
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 high imbalance. 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 current given
in section 2.4
on page 10. Refer to local wiring regulations for the correct size of cables. In some cases a larger cable is required to avoid
excessive voltage drop.
The nominal output cable size assumes the motor maximum current matches that of the drive. Where a motor of reduced rating is used the cable
rating may be chosen to match that of the motor. To ensure that the motor and cable are protected against over-load, the drive must be programmed
with the correct motor rated current.
Ensure cables used suit local wiring regulations.
4.12.1 Cable type
Use 105 °C (221 °F) (UL 60/75 °C temp rise) PVC-insulated cable with copper conductors having a suitable voltage rating, for the following power
connections:
•
AC supply to external EMC filter (when used)
•
AC supply (or external EMC filter) to drive
•
Drive to motor
•
Drive to braking resistor
Most cables have an insulating jacket between the cores and the armor or shield; these cables have a low capacitance and are recommended.
Table 4-10 Cable ratings (200 V)
The nominal cable sizes below are only a guide. The mounting and grouping of cables affects their current-carrying capacity, in some cases
smaller cables may be acceptable but in other cases a larger cable is required to avoid excessive temperature or voltage drop. Refer to
local wiring regulations for the correct size of cables.
Model
Cable size (IEC)
mm
2
Cable size (UL)
AWG
Input
Output
Input
Output
Nominal Maximum
Installation Nominal Maximum
Installation Nominal Maximum
Nominal Maximum
03200050
1.5
4
B2
1.5
4
B2
14
10
14
10
03200066
03200080
4
4
12
12
03200106
04200137
6
8
B2
6
8
B2
10
8
10
8
04200185
8
8
8
8
05200250
10
10
B2
10
10
B2
8
8
8
8
06200330
16
25
B2
16
25
B2
4
3
4
3
06200440
25
25
3
3
07200610
35
70
B2
35
70
B2
2
1/0
2
1/0
07200750
1
1
07200830
70
70
1/0
1/0
NOTE
NOTE
CAUTION
Содержание E300 Series
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