Wire gauges and tightening torque, Three-phase 200 v class, I.3 electrical installation safety – Yaskawa AC Drive Z1000 HVAC User Manual

Page 19

A –Crimp terminals in correct position

Figure i.6 Crimp Terminals

Wire Gauges and Tightening Torque

Use the tables in this section to select the appropriate wires and crimp terminals.
Gauges listed in the tables are for use in the United States.

Note:

1. Wire gauge recommendations based on drive continuous current ratings using 75 °C 600 Vac vinyl-sheathed wire assuming ambient

temperature within 40 °C and wiring distance less than 100 m.

2. Terminal +3 is not used. Do not connect devices or wiring to this terminal.

• Consider the amount of voltage drop when selecting wire gauges. Increase the wire gauge when the voltage drop is greater

than 2% of motor rated voltage. Ensure the wire gauge is suitable for the terminal block. Use the following formula to

calculate the amount of voltage drop:
Line drop voltage (V) =

× wire resistance (Ω/km) × wire length (m) × current (A) × 10

-3

•

Refer to UL Standards Compliance on page 40

for information on UL compliance.

Yaskawa recommends using closed-loop crimp terminals on all drive models. UL/cUL approval requires the use of closed-

loop crimp terminals when wiring the drive main circuit terminals on models 2A0031 to 2A0396 and 4A0034 to 4A0590. Use

only the tools recommended by the terminal manufacturer for crimping.

Refer to Closed-Loop Crimp Terminal Size on page

for closed-loop crimp terminal recommendations.

The wire gauges listed in the following tables are Yaskawa recommendations. Refer to NEC table 310-16 for proper wire

gauge selection for terminals -M, +M, -1, +3, and ground.

Three-Phase 200 V Class

Table i.4 Wire Gauge and Torque Specifications (Three-Phase 200 V Class)

Model

Terminal

Recomm. Gauge

AWG, kcmil

Wire Range

AWG, kcmil

Screw

Size

Tightening Torque

N·m (lb. in.)

2A0011

R/L1, S/L2, T/L3

14 to 8

1.6 to 1.8

(14 to 16)

U/T1, V/T2, W/T3

-M, +M

–

2.7 to 3.0

(24 to 27)

2A0017