7.2 Installation External Wiring
Customer-supplied medium voltage cables enter the drive by means of an access plate in the top
or bottom of the VFD enclosure.
Customer-supplied low-voltage cables #8 - #28 (4.0 - 0.8 mm
2
) AWG for the control enter an
access plate in the top or bottom of the VFD enclosure. Refer to the project drawings for exact
locations.
The input and output medium voltage terminals (L1, L2, L3 /U1, V1, W1 and T1, T2, T3 /U2, V2,
W2) are oset from one another and have standard NEMA pattern congurations (detailed
below) to facilitate top or bottom cable termination.
VFD
OBJECT
INPUT
1,2
OUTPUT PROTECTIVE CONDUCTOR
Maximum Cross-
Section of Exter‐
nal Wires
9-cell
40 - 70 A
1 x 177 mm
2
1 x 350 MCM
1 x 33.6 mm
2
1 x 2 AWG
70 mm²
2/0 AWG
9-cell
100 - 140 A
1 x 107.2 mm
2
1 x 4/0 AWG
1 x 53.5 mm
2
1 x 1/0 AWG
70 mm
2
2/0 AWG
9-cell
200 - 260 A
1 x 253 mm
2
1 x 500 MCM
1 x 107.2 mm
2
1 x 4/0 AWG
70 mm
2
2/0 AWG
1. For 480 V - 600 V input voltage, maximum conductor size is 2 x 535 MCM (240 mm
2
).
2. For 7200 V - 13800 V input voltage, maximum conductor size is 1 x 4/O AWG shielded (120 mm
2
).
VFD
OBJECT
INPUT OUTPUT PROTECTIVE CONDUCTOR
Maximum Cross-
Section of Exter‐
nal Wires
12/15-cell
40 - 140 A
1 x 177 mm
2
1 x 350 MCM
1 x 107.2 mm
2
1 x 4/0 AWG
70 mm
2
2/0 AWG
12/15-cell
200 - 260 A
2 x 177 mm
2
2 x 350 MCM
1 x 107.2 mm
2
1 x 4/0 AWG
70 mm
2
2/0 AWG
9-cell
340 430 A
1 x 177 mm
2
1 x 350 MCM
1 x 107.2 mm
2
1 x 4/0 AWG
70 mm
2
2/0 AWG
Electrical Connections
7.2 Installation External Wiring
Type 6SR5 Air-Cooled
38 Operating Instructions, AK, A5E39390112