Tweco 300 S Arcmaster - Manual (Page 20)

ARCMASTER ® 300 S
March 31, 2006 3-2
1. Connect end of ground (YELLOW/GREEN) conductor to a suitable ground. Use a grounding method that complies with
all applicable electrical codes.
2. Connect ends of line 1 (BROWN) and line 2 (BLUE) and line 3 (RED) input conductors to a de-energized line disconnect
switch.
3. Use Table 1 and Table 2 as a guide to select line fuses for the disconnect switch.
NOTE
For Single-Phase operation connect the GREEN, BLACK and WHITE input conductors. Insolate the RED Conductor,
it is not used for Single-phase operation.
Input Voltage Fuse Size
208 100
230 90
460 30
Table 1 Electrical Input Connections
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).
Figure 3 - Electrical Input Connections