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Proper Cable Cross-Sectional Area (Unit: mm
Return Length
Weld Current
500A
450A
400A
350A
300A
250A
200A
150A
100A
9-2. Welding Polarity
There are "+" (positive) and "
Refer to the table below to select a polarity corresponding to the work you are
performing.
<Note>
• Use the polarity indicated for the welding rods being used if so indicated.
• When welding with 2 persons using different polarities for the same base
material, a single worker must not hold 2 holders because the voltage between
the 2 holders could become high and there may be a danger.
Rod
Polarity
Indication
Straight
DC-
Polarity
Reverse
DC+
Polarity
9-3. Welding Cable Connection
Warning: Electric Shock
• Be sure to stop the engine whenever touching weld output terminals such as
when installing or removing welding cables.
• Do not connect welding cables to any part other than weld output terminals.
20m
38
38
38
30
30
22
22
22
22
-
" (negative) weld output terminals.
Applications
Shielded metal arc welding of
structures and similar items
Shielded metal arc welding of
laminates, weld overlays, stainless
steel and similar materials
Gouging
- 19 -
2
)
30m
40m
60m
60
80
125
60
80
100
50
60
100
50
60
80
38
50
80
30
38
60
30
30
50
22
22
38
22
22
30
Connecting Method
+ (positive) terminal
: Earth (Base material)
- (negative) terminal
: Holder (welding rod)
+ (positive) terminal
: Holder (welding rod)
- (negative) terminal
: Earth (Base material)
80m
100m
200
200
150
200
125
200
125
150
100
125
80
100
60
80
50
60
30
38
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