Weld Output Receptacles And Selecting Cable Sizes - Miller AlumaPower 350 MPa Auto-Line CE Owner's Manual

5-5. Weld Output Receptacles 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.
Weld Output
Terminals
!
Turn off power be-
fore connecting to
weld output termi-
nals.
!
Do not use worn,
damaged, under-
sized, or poorly
spliced cables.
+
−
Output Receptacles
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).
OM-245 182 Page 18
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
100 ft (30 m) or Less
60 − 100%
10 − 60%
Welding
Duty Cycle
Amperes
2
AWG (mm )
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)
Not Exceeding***
150 ft 200 ft
(45 m) (60 m)
Duty
Cycle
2
)
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)
1/0 (60) 2/0 (70) 3/0 (95)
2/0 (70) 3/0 (95) 4/0 (120)
2/0 (70) 3/0 (95) 4/0 (120)
2x2/0
3/0 (95) 4/0 (120)
(2x70)
2x2/0 2x3/0
4/0 (120)
(2x70) (2x95)
250 ft 300 ft 350 ft
(70 m) (90 m) (105 m)
10 − 100% Duty Cycle
2
AWG (mm )
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)
2x2/0
3/0 (95) 4/0 (120)
(2x70)
2x2/0 2x3/0
4/0 (120)
(2x70) (2x95)
2x2/0 2x3/0 2x3/0
(2x70) (2x95) (2x95)
2x2/0 2x3/0 2x4/0
(2x70) (2x95) (2x120)
2x3/0 2x4/0 3x3/0
(2x95) (2x120) (3x95)
2x4/0 3x3/0 3x4/0
(2x120) (3x95) (3x120)
Ref. S-0007-J 2011−07
400 ft
(120 m)
1/0 (60)
3/0 (95)
2x2/0
(2x70)
2x3/0
(2x95)
2x4/0
(2x120)
2x4/0
(2x120)
3x3/0
(3x95)
3x4/0
(3x120)