Miller Dialarc 250 AC/DC Benutzerhandbuch - Seite 17
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4-7. Selecting A Location
Movement
1
Location And Airflow
18 in.
(460 mm)
4-8. 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%
Duty
Welding
Cycle
Amperes
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)
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).
OR
Weld Cable Size** and Total Cable (Copper) Length in Weld Circuit
150 ft
(45 m)
60 − 100%
Duty Cycle
2
AWG (mm
)
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)
!
Do not move or operate unit
where it could tip.
2
3
18 in.
(460 mm)
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)
!
Special installation may be
required where gasoline or
volatile liquids are present −
see NEC Article 511 or CEC
Section 20.
1
Lifting Eye
2
Lifting Forks
Use lifting eye or lifting forks to
move unit.
If using lifting forks, extend forks
beyond opposite side of unit.
3
Line Disconnect Device
Locate unit near correct input
power supply.
loc_large 2015-04
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)
Ref. S-0007-L 2015−02
OM-321 Page 13
400 ft
(120 m)
1/0 (60)
3/0 (95)
4/0 (120)