Cable Types - ABB ACS800 Hardware Manual

100
The following parameters may effect on correct the operation of the protection:
• cable length, i.e. the longer the cable the weaker the fuse protection, as the long
cable limits the fault current
• cable size, i.e. the smaller the cable the weaker the fuse protection, as the small
cable size limits the fault current
• transformer size, i.e the smaller the transformer the weaker the fuse protection,
as the small transformer limits the fault current
• transformer impedance, i.e. the higher the z
high impedance limits the fault current.
The protection can be improved by installling a larger supply transformer and/or
bigger cables, and in most cases by selecting aR fuses instead of gG fuses.
Selection of smaller fuses improves the protection, but may also affect the fuse life
time and lead to unnecessary operation of the fuses.
In case of any uncertainty regarding the drive protection, please contact your local
ABB.

Cable types

The table below gives copper and aluminium cable types for different load currents.
Cable sizing is based on max. 9 cables laid on a cable ladder side by side, ambient
temperature 30 °C, PVC insulation, surface temperature 70 °C (EN 60204-1 and
IEC 60364-5-52/2001). For other conditions, size the cables according to local
safety regulations, appropriate input voltage and the load current of the drive.
concentric copper shield
Max. load
current
Technical data
Copper cables with
Cable type
2
A mm
13 3×1.5
18 3×2.5
24 3×4
30 3×6
42 3×10
56 3×16
71 3×25
88 3×35
107 3×50
137 3×70
167 3×95
193 3×120
223 3×150
255 3×185
the weaker the fuse protection as
k
Aluminium cables with
concentric copper shield
Max. load Cable type
current
2
A mm
61 3×25
69 3×35
83 3×50
107 3×70
130 3×95
151 3×120
174 3×150
199 3×185
235 3×240
274 3 × (3×50)
260 2 × (3×95)
3BFA 01051905 C