Connecting To Weld Output Terminals; Selecting Weld Cable Sizes - Miller Bobcat 225 Owner's Manual
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- Owner's manual (78 pages) ,
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5-7. Connecting to Weld Output Terminals
5-8. Selecting Weld Cable Sizes*
Weld Output
Terminals
Y Turn off power before
connecting to weld out-
put terminals.
Y Do not use worn, dam-
aged, undersized, or
poorly spliced cables.
This chart is a general guideline and may not suit all applications. If cables overheat, use next size larger cable.
*
**Weld cable size (AWG) is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
2
( ) = mm
for metric use
***For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505.
1
2
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
100 ft (30 m) or Less
10 − 60%
60 − 100%
Welding
Duty
Amperes
Cycle
Cycle
100
4 (20)
150
3 (30)
200
3 (30)
250
2 (35)
300
1 (50)
1/0 (60)
350
1/0 (60)
2/0 (70)
400
1/0 (60)
2/0 (70)
500
2/0 (70)
3/0 (95)
Not Exceeding***
150 ft
200 ft
(45 m)
(60 m)
Duty
4 (20)
4 (20)
3 (30)
3 (30)
2 (35)
1 (50)
2 (35)
1 (50)
1/0 (60)
1 (50)
1/0 (60)
2/0 (70)
2/0 (70)
3/0 (95)
3/0 (95)
4/0 (120)
3/0 (95)
4/0 (120)
2 ea. 2/0
4/0 (120)
(2x70)
.
See Section 6 for examples of
typical weld connections and
control settings.
1
Work Weld Output Terminal
2
Electrode Weld Output Terminal
Connect work cable to Work terminal.
Connect electrode holder cable or
electrode weld cable to Electrode ter-
minal for Stick and MIG welding.
Connect torch cable to Electrode ter-
minal for TIG welding.
Use Process Selector switch to
select type of weld output (see
Section 6-1).
.
See Sections 6-2 thru 6-4 for typi-
cal process connections and
control settings.
Tools Needed:
803 847 / Ref. 218 646-A
250 ft
300 ft
350 ft
(70 m)
(90 m)
(105 m)
10 − 100% Duty Cycle
2 (35)
1 (50)
1/0 (60)
1/0 (60)
2/0 (70)
3/0 (95)
2/0 (70)
3/0 (95)
4/0 (120) 4/0 (120)
2 ea. 2/0
3/0 (95)
4/0 (120)
(2x70)
2 ea. 2/0
2 ea. 3/0
4/0 (120)
(2x70)
(2x95)
2 ea. 2/0
2 ea. 3/0
2 ea. 3/0
(2x70)
(2x95)
(2x95)
2 ea. 2/0
2 ea. 3/0
2 ea. 4/0
(2x70)
(2x95)
(2x120)
2 ea. 3/0
2 ea. 4/0
3 ea. 3/0
(2x95)
(2x120)
(3x95)
OM-4434 Page 19
3/4 in
400 ft
(120 m)
1/0 (60)
3/0 (95)
2 ea. 2/0
(2x70)
2 ea. 3/0
(2x95)
2 ea. 4/0
(2x120)
2 ea. 4/0
(2x120)
3 ea. 3/0
(3x95)
S-0007-F
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