Connecting To Weld Output Terminals; Selecting Weld Cable Sizes - Miller Electric Big Blue 502P Owner's Manual

4-8. Connecting To Weld Output Terminals

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OR

4-9. Selecting Weld Cable Sizes

100 ft (30 m) Or Less
Welding
Amperes Amperes
10 − 60%
Duty Cycle
100 4
150 3
200 3
250 2
300 1
350 1/0
400 1/0
500 2/0
*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. Contact your
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distributor for the mm equivalent weld cable sizes.
OM-491 Page 18
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Total Cable (Copper) Length In Weld Circuit Not Exceeding
150 ft
(45 m)
60 − 100%
Duty Cycle
4 4
3 2
2 1
1 1/0
1/0 2/0
2/0 3/0
2/0 3/0
3/0 4/0
Tools Needed:
3/4 in
200 ft 250 ft 300 ft
(60 m) (70 m) (90 m)
10 − 100% Duty Cycle
3 2
1 1/0
1/0 2/0
2/0 3/0
3/0 4/0 2-2/0
4/0 2-2/0 2-3/0
4/0 2-2/0 2-3/0
2-2/0 2-3/0 2-4/0
Y Stop engine.
1 Positive (+) Weld Output
Terminal
2 Negative (−) Weld Output Ter-
minal
For Stick and TIG welding Direct
Current Electrode Positive
(DCEP), connect work cable to −
terminal and electrode holder cable
to + terminal.
For Direct Current Electrode Nega-
tive (DCEN), reverse cable
connections.
If equipped with optional polarity
switch, connect electrode holder
cable to Electrode (−) terminal on
left and work cable to Work (+) ter-
minal on right.
Ref. 802 169-A
350 ft 400 ft
(105 m) (120 m)
1 1/0 1/0
2/0 3/0 3/0
3/0 4/0 4/0
4/0 2-2/0 2-2/0
2-3/0 2-3/0
2-3/0 2-4/0
2-4/0 2-4/0
3-3/0 3-3/0
S-0007-E