23
U
W
V
PE
PE
PE
CONNECTIONS
POWERDRIVE MD2CS Installation guide
4946 - 2017.12 / c
en
POWERDRIVE rating
Mains power supply
Motor
525 V
I
L
(A)
Fuses (1)
Cable cross-section
(mm²)
(3)
Ico (A)
Cable cross-
section
(mm²) (4)
Gg type
aR
type
Class J
(UL)
270TH
Heavy
210
250
400
300
3x95 + PE(1)
220
3x95 + PE(1)
Normal
260
315
450
350
3x120 + PE(1)
280
3x150 + PE(1)
340TH
Heavy
260
315
500
350
3x120 + PE(1)
270
3x150 + PE(1)
Normal
330
400
550
450
3x185 + PE(1)
340
3x185 + PE(1)
400TH
Heavy
325
400
630
450
3x185 + PE(1)
335
3x185 + PE(1)
Normal
415
400
700
500
2x[3x120 + PE(1)]
415
2x[3x120 + PE(1)]
500TH
Heavy
415
400
700
500
2x[3x120 + PE(1)]
390
2x[3x120 + PE(1)]
Normal
470
500
800
600
2x[3x150 + PE(1)]
470
2x[3x150 + PE(1)]
Note: The line current value
I
L
is a typical value which depends on the source impedance.
(1)
The aR semi-conductor fuses do not protect the drive power supply line. They must be combined with an overload protection
device (gG fuses, C type circuit-breaker, etc.) suitable for the installation configuration and located at the start of the line.
(2)
The recommended AC supply cable cross-sections have been determined for single-core cable with a maximum length of 20 m.
For longer cables, take line drops due to the length into account.
(3)
The motor cable cross-sections are given for information only for a current corresponding to the value of the
Ico current at 3 kHz in normal duty, a maximum length of 50 m, output frequency less than 100 Hz and an ambient
temperature of 40°C.
The recommended motor cables are shielded multicore type
. The values supplied are
typical values.
Example: Cable cross-section of 2 x [3 x 150 + PE] corresponds to 2 cables each consisting of 3 phase conductors
(cross-section 150 mm²) + earth conductors (see below).
(4)
The earth (PE) conductor cross-section cannot be less than half the cross-section of a live conductor, with the same material
used. Example: The earth conductor cross-section for a live conductor 2x 240 mm² must be:
- 2x 120 mm²
- 2 x (3 x 40 mm2) when the earth conductor is divided by 3 (see above figure)
