Ul ® Cautions, Warnings, And Instructions; Wiring Warnings For Electrical Practices And Wire Sizes; Terminal Tightening Torque And Wire Size - Hitachi SJ300 Series Quick Reference Manual

Caution: Be sure to read the SJ300 Inverter Manual and follow
its Cautions and Warnings for the initial product installation.
This Quick Reference Guide is intended for reference use by
experienced users in servicing existing installations.
®
UL Cautions, Warnings, and Instructions

Wiring Warnings for Electrical Practices and Wire Sizes

The Cautions, Warnings, and instructions in this section summarize the
procedures necessary to ensure an inverter installation complies with
Underwriters Laboratories
Warning: "Use 60/75°C Cu wire only" or equivalent.
Warning: "Open Type Equipment." For models SJ300–750H to
SJ300–1500H.
Warning: "Suitable for use on a circuit capable of delivering
not more than 100,000 rms symmetrical amperes, 240 V
maximum." For models with suffix L.
Warning: "Suitable for use on a circuit capable of delivering
not more than 100,000 rms symmetrical amperes, 480 V
maximum." For models with suffix H.

Terminal Tightening Torque and Wire Size

The wire size range and tightening torque for field wiring terminals are
presented in the tables below.
Motor output
kW HP
0.4 1/2
0.75 1
1.5 2
2.2 3
3.7 5
5.5 7 1/2
7.5 10
11 15
15 20
®
guidelines.
200V Models
Inverter
Model
–004LFU
–007LFU
–015LFU
–022LFU
–037LFU
–055LFU
–075LFU
–110LFU
–150LFU
Wire Size (AWG)
20
18
14
14
10
8
6
4
2
1
Torque
ft-lbs (N-m)
1.1 1.5
1.1 1.5
1.1 1.5
1.1 1.5
1.1 1.5
1.8 2.5
1.8 2.5
3.6 4.9
3.6 4.9