Thermal Arc 400 GTSW AC/DC, Operating Manual

Page: 29 / 52

11 INSTALLATION
ELECTRIC SHOCK can kill.
• Do not connect an input (white, red, or black) conductor to the
ground terminal.
• Do not connect the ground (green) conductor to an input line
terminal.
Refer to Figure 2-D (page 13) and:
1. Connect end of green ground conductor to a suitable ground.
Use a grounding method that complies with all applicable
electrical codes.
2. For three-phase electrical input power: connect ends of red
(line 1), white (line 2), and black (line 3) input conductors to a
deenergized line disconnect switch.
3. For single-phase electrical input power: connect ends of red
(line 1), white (line 2), input conductors to a de-energized line
disconnect switch. Insulate and isolate the black (line 3)
conductor.
4. Use Table 2-C (below) as a guide to select line fuses for the
disconnect switch.
2.6 ELECTRICAL INPUT CONNECTIONS (continued)
INPUT INPUT FUSE SIZE
POWER VOLTAGE (AMPERES)
SINGLE 208-230 VAC 90
PHASE 460 VAC 45
THREE 208-230 VAC 60
PHASE 380-460 VAC 35
WARNING
Table 2-C Fuse Sizes
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).