Miller Trailblazer 302 Diesel Owner's Manual - Page 23
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5-4. 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.
100 ft (30 m) or Less
10 − 60%
60 − 100%
Duty
Welding
Duty Cycle
Cycle
Amperes
AWG (mm
2
AWG (mm
)
100
4 (20)
150
3 (30)
200
3 (30)
250
2 (35)
300
1 (50)
350
1/0 (60)
400
1/0 (60)
500
2/0 (70)
600
3/0 (95)
700
4/0 (120)
2x2/0 (2x70)
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.
2
( ) = mm
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).
5-5. Weld Output Terminals
1
.
A complete Parts List is available at www.MillerWelds.com
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
150 ft
(45 m)
2
)
4 (20)
4 (20)
3 (30)
2 (35)
2 (35)
1 (50)
1 (50)
1/0 (60)
1/0 (60)
2/0 (70)
2/0 (70)
3/0 (95)
2/0 (70)
3/0 (95)
3/0 (95)
4/0 (120)
2x2/0 (2x70)
4/0 (120)
2x2/0 (2x70)
2x3/0 (2x95)
2x3/0 (2x95)
2x4/0 (2x120)
2
Not Exceeding***
200 ft
250 ft
(60 m)
(70 m)
10 − 100% Duty Cycle
AWG (mm
3 (30)
2 (35)
1 (50)
1/0 (60)
1/0 (60)
2/0 (70)
2/0 (70)
3/0 (95)
3/0 (95)
4/0 (120)
2x2/0 (2x70)
4/0 (120)
2x2/0 (2x70)
2x3/0 (2x95)
4/0 (120)
2x2/0 (2x70)
2x3/0 (2x95)
2x3/0 (2x95)
2x4/0 (2x120)
2x4/0 (2x120)
3x3/0 (3x95)
3x3/0 (3x95)
3x4/0 (3x120) 3x4/0 (3x120) 4x4/0 (4x120)
3
300 ft
350 ft
(90 m)
(105 m)
2
)
1 (50)
1/0 (60)
2/0 (70)
3/0 (95)
3/0 (95)
4/0 (120)
4/0 (120)
2x2/0 (2x70)
2x2/0 (2x70)
2x3/0 (2x95)
2x3/0 (2x95)
2x3/0 (2x95)
2x4/0 (2x120)
2x4/0 (2x120) 2x4/0 (2x120)
3x3/0 (3x95)
3x3/0 (3x95)
3x4/0 (3x120) 3x4/0 (3x120)
Ref. S-0007-L 2015−02
!
Turn
Off
power
connecting to weld output
receptacle.
1
Positive High Inductance
Output Terminal
2
Positive Low Inductance
Output Terminal
3
Negative Output Terminal
Select cables according to Section
5-4.
!
Do not use worn, damaged,
undersized,
or
spliced cables.
Connect weld cables according to
Section 5-6.
Ref. 800 166-D
OM-223 Page 17
400 ft
(120 m)
1/0 (60)
3/0 (95)
4/0 (120)
before
poorly