MANUAL 430429-490
17
OPERATOR CONTROLS
•
To operate signal-phase, do not connect the RED input conductor.
• Do not connect an input (WHITE or BLACK) conductor to the
ground terminal.
• Do not connect the ground (GREEN) conductor to an input line
terminal.
Refer to figure 3 and:
1. Connect end of ground (GREEN) conductor to a suitable ground.
Use a grounding method that complies with all applicable electrical
codes.
2. Connect ends of line 1 (BLACK) and line 2 (WHITE) input
conductors to a de-energized line disconnect switch.
3. Use Table 1 below as a guide to select line fuses for the disconnect
switch.
Table 1. Fuse Size Selection
Input Power/Input Voltage
Fuse Size (Amperes)
Three-Phase
Single-Phase
208-230 VAC
380-415VAC
460VAC
575VAC
70
40
30
25
80
N/A
N/A
N/A
NOTE
Fuse size is based on not more than 200 percent of the rated input
amperage of the welding power source (Based on Article 630, National
Electrical Code).
