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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
®
guidelines.
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 10,000 rms
symmetrical amperes, 240 V maximum.” For models with suffix L.
WARNING: “Suitable for use on a circuit capable of delivering not more than 10,000 rms
symmetrical amperes, 480 V maximum.” For models with suffix H.
Terminal Tighten-
ing Torque and
Wire Size
The wire size range and tightening torque for field wiring terminals are presented in the table
below.
TIP: AWG = American Wire Gauge. Smaller numbers represent increasing wire thickness.
kcmil = 1,000 circular mils, a measure of wire cross-sectional area
mm
2
= square millimeters, a measure of wire cross-sectional area
Input
Voltage
Motor
Output
200V
Inverter Model
Wire Size Range (AWG)
Torque
HP kW ft-lbs (N-m)
200V
1/2 0.4 SJ300-004LFU 20 1.1 1.5
1 0.75 SJ300-007LFU 18 1.1 1.5
2 1.5 SJ300-015LFU 14 1.1 1.5
3 2.2 SJ300-022LFU 14 1.1 1.5
5 3.7 SJ300-037LFU 10 1.1 1.5
7.5 5.5 SJ300-055LFU 8 1.8 2.5
10 7.5 SJ300-075LFU 6 1.8 2.5
15 11 SJ300-110LFU 4 3.6 4.9
20 15 SJ300-150LFU 2 3.6 4.9
25 18.5 SJ300-185LFU 4 || 4 AWG 3.6 4.9
30 22 SJ300-220LFU 4 || 4 AWG 6.5 8.8
40 30 SJ300-300LFU 2 || 2 AWG 6.5 8.8
50 37 SJ300-370LFU 2 || 2 AWG 6.5 8.8
60 45 SJ300-450LFU 1 || 1 AWG (75°C) 10.1 13.7
75 55 SJ300-550LFU 2/0 || 2/0 AWG 10.1 13.7