Fuses and cable cross-sections, Fuses and cable cross−sections, Dc−bus operation – Lenze EVS9332xS User Manual
Page 338

DC−bus operation
Fuses and cable cross−sections
10.3
l
10.3−1
EDSVS9332S EN 6.0−07/2013
10.3
Fuses and cable cross−sections
)
Note!
ƒ
All fuses specified here only have the purpose of
disconnection after a short circuit. For cable protection specific
fuses must be used.
ƒ
In the following tables the rated currents of the Lenze fuses
are listed. If other fuses are used, other fuse currents and cable
cross−sections may result.
ƒ
We recommend using fuse holders with a signalling contact.
Like this, the entire drive system can be switched off
(inhibited) when a fuse fails.
ƒ
Always fuse DC cables using 2 poles (+U
G
, −U
G
).
Supply conditions
Range
Description
Mains
DC 460 ... 740 V
Fuses
l
Only semiconductor fuses.
l
If you are using fuses other than those indicated, other fuse currents and
cable cross−sections may result.
Cables
l
DC cables (+U
G
, −U
G
) must always have two−pole insulation.
l
Laying systems B2 and C: Use of PVC−insulated copper cables, conductor
temperature < 70 °C, ambient temperature < 40 °C, no bundling of cables or
cores, three loaded cores. The information is a recommendation. Other
designs/laying systems are possible (e.g. according to VDE 0298−4).
Observe all national and regional regulations!
Installation in accordance
with EN 60204−1