12.3  SERVOPACK Main Circuit Wires
12.3.8  Wire Types
12-20
*1. Do not wire the following terminals: L1, L2, L3, B2, B3,  1, and   terminals.
*2. If you do not use the recommended Servomotor Main Circuit Cable, use this table to select wires.
12.3.8
Wire Types
The following table shows the wire sizes and allowable currents for three bundled leads.
* This is reference data based on JIS C3317 600-V-grade heat-resistant polyvinyl chloride-insulated wires (HIV).
2R8A
Servomotor Main Cir-
cuit Cables
UA, VA, WA, 
UB, VB, 
WB
*2
AWG16 (1.25 mm
2
)
––
Control Power Supply 
Cables
L1C, L2C
AWG16 (1.25 mm
2
)
––
Main Circuit Power 
Supply Cables
B1/ , 2
AWG16 (1.25 mm
2
)
––
Ground Cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
5R5A
Servomotor Main Cir-
cuit Cables
UA, VA, WA, 
UB, VB, 
WB
*2
AWG16 (1.25 mm
2
)
––
Control Power Supply 
Cables
L1C, L2C
AWG16 (1.25 mm
2
)
––
Main Circuit Power 
Supply Cables
B1/ , 2
AWG14 (2.0 mm
2
)
––
Ground Cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
7R6A
Servomotor Main Cir-
cuit Cables
UA, VA, WA, 
UB, VB, 
WB
*2
AWG16 (1.25 mm
2
)
––
Control Power Supply 
Cables
L1C, L2C
AWG16 (1.25 mm
2
)
––
Main Circuit Power 
Supply Cables
B1/ , 2
AWG14 (2.0mm
2
)
––
Ground Cable
AWG14 (2.0 mm
2
) or larger
M4 1.2 to 1.4
Continued from previous page.
SERVOPACK 
Model: SGD7W-
Ter mi na l S ym bo ls
*1
Wire Size
Screw 
Size
Tightening 
Torque
[N⋅m]
-
-
-
HIV Specifications*
Allowable Current at Surrounding Air Temperatures 
[Arms]
Nominal Cross-
Sectional Area [mm
2
]
Configuration
[Wires/mm]
30°C 40°C 50°C
0.9 7/0.4 15 13 11
1.25 7/0.45 16 14 12
2.0 7/0.6 23 20 17
3.5 7/0.8 32 28 24
5.5 7/1.0 42 37 31
8.0 7/1.2 52 46 39
14.0 7/1.6 75 67 56
22.0 7/2.0 98 87 73
38.0 7/2.6 138 122 103