Miller Subarc AC/DC 1000, Owner'S Manual

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OM-246 011 Page 16
4-7. Weld Output Terminals And Selecting Cable Sizes*
NOTICE − The Total Cable Length in Weld Circuit (see table below) is the combined length of both weld cables. For example, if the power source is
100 ft (30 m) from the workpiece, the total cable length in the weld circuit is 200 ft (2 cables x 100 ft). Use the 200 ft (60 m) column to determine cable
size.
!
Turn off power be-
fore connecting to
weld output termi-
nals.
!
Do not use worn,
damaged, under-
sized, or poorly
spliced cables.
Weld Output
Terminals
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
Not Exceeding***
100 ft (30 m) or Less
150 ft
(45 m)
200 ft
(60 m)
250 ft
(70 m)
300 ft
(90 m)
350 ft
(105 m)
400 ft
(120 m)
Welding
Amperes
10 − 60%
Duty
Cycle
AWG (mm
2
)
60 − 100%
Duty
Cycle
AWG (mm
2
)
10 − 100% Duty Cycle
AWG (mm
2
)
Work
Weld Output
Terminals
Electrode
Weld Output
Terminals
Requires cable lugs with
1/2 in. diameter holes.
3/4 in.
100 4 (20) 4 (20) 4 (20) 3 (30) 2 (35) 1 (50) 1/0 (60) 1/0 (60)
150 3 (30) 3 (30) 2 (35) 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 3/0 (95)
200 3 (30) 2 (35) 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120) 4/0 (120)
250 2 (35) 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120)
2x2/0
(2x70)
2x2/0
(2x70)
300 1 (50) 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120)
2x2/0
(2x70)
2x3/0
(2x95)
2x3/0
(2x95)
350 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120)
2x2/0
(2x70)
2x3/0
(2x95)
2x3/0
(2x95)
2x4/0
(2x120)
400 1/0 (60) 2/0 (70) 3/0 (95) 4/0 (120)
2x2/0
(2x70)
2x3/0
(2x95)
2x4/0
(2x120)
2x4/0
(2x120)
500 2/0 (70) 3/0 (95) 4/0 (120)
2x2/0
(2x70)
2x3/0
(2x95)
2x4/0
(2x120)
3x3/0
(3x95)
3x3/0
(3x95)
600 3/0 (95) 4/0 (120)
2x2/0
(2x70)
2x3/0
(2x95)
2x4/0
(2x120)
3x3/0
(3x95)
3x4/0
(3x120)
3x4/0
(3x120)
700 4/0 (120) 2x2/0 (2x70)
2x3/0
(2x95)
2x4/0
(2x120)
3x3/0
(3x95)
3x4/0
(3x120)
3x4/0
(3x120)
4x4/0
(4x120)
800 4/0 (120) 2x2/0 (2x70)
2x3/0
(2x95)
2x4/0
(2x120)
3x4/0
(3x120)
3x4/0
(3x120)
4x4/0
(4x120)
4x4/0
(4x120)
900 2x2/0 (2x70) 2x3/0 (2x95)
2x4/0
(2x120)
3x3/0
(3x95)
1000 2x2/0 (2x70) 2x3/0 (2x95)
2x4/0
(2x120)
3x3/0
(3x95)
1250 2x3/0 (2x95)
2x4/0
(2x120)
3x3/0
(3x95)
4x3/0
(4x95)
1500 600 (300) 750 (400) 1000 (500)
2x750
(2x400)
*
This chart is a general guideline and may not suit all applications. If cable overheats, 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.
( ) = mm
2
for metric use
***For distances longer than those shown in this guide, call a factory applications rep. at 920-735-4505 (Miller) or 1-800-332-3281 (Hobart).
Ref. S-0007-J 2011 − 07