Table 19: The cable and fuse sizes for Vacon
®
100 in North America, mains voltage 525-690 V
Frame
Type
IL [A]
Fuse
(Class T/J)
[A]
Mains, motor
and brake
resistor*
cable Cu
[AWG]
Terminal cable size
Mains cable
terminal [AWG]
Grounding
terminal [AWG]
MR9
0144 6
0144 7
144.0
175
3/0
1 AWG-350 kcmil 1 AWG-350 kcmil
0170 7
170.0
200
4/0
1 AWG-350 kcmil 1 AWG-350 kcmil
0208 6
0208 7
208.0
250
300 kcmil
1 AWG-350 kcmil 1 AWG-350 kcmil
* = If you use a multi-conductor cable, 1 of the conductors of the brake resistor cable stays
unconnected. It is also possible to use a single cable if you obey the minimum crosssectional
area of the cable.
The dimensions of the cables must agree with the requirements of the Underwriters
Laboratories UL 61800-5-1.
•
The cables must be PVC-isolated.
•
The maximum ambient temperature is +86 °F.
•
The maximum temperature of the cable surface is +158 °F.
•
Use only cables with a concentric copper shield.
•
The maximum number of parallel cables is 9.
When you use parallel cables, make sure that you obey the requirements of the cross-
sectional area and the maximum number of cables.
For important information on the requirements of the grounding conductor, see the
Underwriters Laboratories standard UL 61800-5-1.
For the correction factors for each temperature, see the instructions of the Underwriters
Laboratories UL 61800-5-1.
5.4
BRAKE RESISTOR CABLES
Vacon
®
100 AC drives have terminals for an optional external brake resistor. These
terminals are identified with R+ and R- (in MR4 and MR5) or DC+/R+ and R- (in MR6, MR7,
MR8 and MR9). You can find the dimensions that we recommend for the brake resistor
cables in the tables in chapters 5.3.1 Cable and fuse sizes and 5.3.2 Cable and fuse sizes, North
America.
CAUTION!
If you use a multi-conductor cable, 1 of the conductors of the brake resistor cable
stays unconnected. Cut off the remaining conductor to prevent an accidental
contact with a conducting component.
See the brake resistor ratings in chapter 8.1.6 Brake resistor ratings.
VACON · 68
POWER CABLING
5
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