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3.3 Main Circuit Wiring

3-21

Wiring and Connection

 Wire Types

Use the following type of wire for main circuit.

The following table shows the wire sizes and allowable currents for three wires. Use

wires with specifications equal to or less than those shown in the table.

• 600 V grade heat-resistant polyvinyl chloride insulated wire (HIV)

Note: The values in the table are for reference only.

Cable Type

Allowable Conductor

Temperature °C

Symbol Name

IV 600 V polyvinyl chloride insulated wire 60

HIV

600 V grade heat-resistant polyvinyl chloride

insulated wire

AWG

Size

Nominal

Cross

Section

Diameter

(mm

)

Configuration

(Number of

Wires/mm

)

Conductive

Resistance

(Ω/km)

Allowable Current at

Surrounding Air Temperature

(A)

30°C 40°C 50°C

20 0.5 19/0.18 39.5 6.6 5.6 4.5

19 0.75 30/0.18 26.0 8.8 7.0 5.5

18 0.9 37/0.18 24.4 9.0 7.7 6.0

16 1.25 50/0.18 15.6 12.0 11.0 8.5

14 2.0 7/0.6 9.53 23 20 16

12 3.5 7/0.8 5.41 33 29 24

10 5.5 7/1.0 3.47 43 38 31

8 8.0 7/1.2 2.41 55 49 40

6 14.0 7/1.6 1.35 79 70 57

4 22.0 7/2.0 0.85 91 81 66

1 2 ... 70 71 72 73 74 75 76 77 78 79 80 ... 108 109

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YASKAWA SERVO Manuel d'utilisateur Page 75

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