Selecting Weld Cable Sizes - Miller SRH-444 Manuel Du Propriétaire

4-9. Selecting Weld Cable Sizes*
Turn off power before connecting to weld output terminals.
Do not use worn, damaged, undersized, or poorly spliced cables.
Welding 100 ft (30 m) or Less
Amperes
10 - 60% Duty
Cycle
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)
* 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. ( ) = mm² for
metric use.
*** For distances longer than those shown in this guide, call a factory applications representative at 920-735-4505.
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit Not Exceeding***
150 ft (45 m) 200 ft (60 m)
60 - 100%
Duty Cycle
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)
2 ea. 2/0
4/0 (120)
(2x70)
250 ft (70 m) 300 ft (90 m)
10 - 100% Duty Cycle
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)
2 ea. 2/0
4/0 (120)
(2x70)
2 ea. 2/0
4/0 (120)
(2x70)
2 ea. 2/0 2 ea. 3/0
(2x70) (2x95)
2 ea. 3/0 2 ea. 4/0
(2x95) (2x120)
350 ft (105 m) 400 ft (120 m)
1 (50) 1/0 (60)
2/0 (70) 3/0 (95)
3/0 (95) 4/0 (120)
2 ea. 2/0
4/0 (120)
(2x70)
2 ea. 2/0 2 ea. 3/0
(2x70) (2x95)
2 ea. 3/0 2 ea. 3/0
(2x95) (2x95)
2 ea. 3/0 2 ea. 4/0
(2x95) (2x120)
2 ea. 4/0 3 ea. 3/0
(2x120) (3x95)
3 ea. 3/0 3 ea. 4/0
(3x95) (3x120)
1/0 (60)
3/0 (95)
4/0 (120)
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)
3 ea. 4/0
(3x120)
Page 15