OM-235 241 Page 10
SECTION 4 − INSTALLATION
4-1.
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 30 m (100 ft) from the workpiece, the total cable length in the weld circuit is 60 m (2 cables x 30 m). Use the 60 m (200 ft) column to determine
cable size.
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
Not Exceeding***
30 m (100 ft) or Less
45 m (150
ft)
60 m (200 ft)
70 m (250
ft)
90 m (300
ft)
105 m (350
ft)
120 m (400
ft)
Welding
Amperes
10 − 60%
Duty
Cycle
mm
2
(AWG)
60 − 100%
Duty Cycle
mm
2
(AWG)
10 − 100% Duty Cycle
mm
2
(AWG)
100
20 (4)
20 (4)
20 (4)
30 (3)
35 (2)
50 (1)
60 (1/0)
60 (1/0)
150
30 (3)
30 (3)
35 (2)
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
95 (3/0)
200
30 (3)
35 (2)
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
120 (4/0)
250
35 (2)
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
2x70 (2x2/0)
2x70 (2x2/0)
300
50 (1)
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
2x70 (2x2/0)
2x95 (2x3/0)
2x95 (2x3/0)
350
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
2x70 (2x2/0)
2x95 (2x3/0)
2x95 (2x3/0)
2x120 (2x4/0)
400
60 (1/0)
70 (2/0)
95 (3/0)
120 (4/0)
2x70 (2x2/0)
2x95 (2x3/0)
2x120 (2x4/0)
2x120 (2x4/0)
*
This chart is a general guideline and may not suit all applications. If cable overheats, use next size larger cable.
**Weld cable size is based on either a 4 volts or less drop or a current density of at least 300 circular mils per ampere.
***For distances longer than those shown in this guide, call a factory applications representative.
Milan Ref. S-0007-L 2015−02
Notes
