Miller Millermatic 300 Owner's Manual page 23

Select Voltage and Wire Speed Based
on Thickness of Metal Being Welded
1/2" 3/8"
(12.7 mm)
(9.5 mm) (6.4 mm)
− −
− 23.5/610 21.5/475
24.0/435
20.5/310
22.0/380
22.0/250 20.0/195
24.0/315
25.0/250
21.5/203
23.0/220
24.5/200 21.5/125
22.5/170
−
−
− 21.0/580
19.0/450
24.0/460 20.0/380 18.0/315
20.0/295 18.0/245
23.0/375
23.5/305 20.0/230 18.0/180
18.5/170
24.0/235
20.0/175
−
19.0/350 19.0/270
−
19.0/180 19.0/160
19.0/170
19.0/170 19.0/140
19.0/120
19.0/130
17.5/100
26.5/465 25.0/430 22.0/330
26.5/315
25.0/285 22.0/240
26.5/290 25.0/260
22.0/205
−
− 23.0/680
−
23.5/500
22.5/435
− 23.5/390 22.5/350
−
23.5/315 21.5/285
−
24.0/760 20.0/575
−
24.5/725
20.0/475
25.5/550
24.5/525 20.0/380
To read setting: Number on left
of slash is voltage, number on
right of slash is wire-speed. "_"
Means not recommended.
1/4" 3/16" 1/8"
(4.8 mm) (3.2 mm)
− − −
20.0/430 18.5/225
19.5/300
18.5/195
19.0/165 18.5/150
20.5/150 19.0/120
19.5/95
20.5/110
−
19.5/680 18.5/515
17.0/325
18.0/380
17.0/280 16.0/235
17.0/210
16.0/160
17.0/170 16.0/140
17.5/135 16.5/100
15.5/155
14.5/145
16.0/130 14.5/120
15.5/120
14.5/100
15.5/85 14.5/75
20.5/250
18.5/215
20.5/195
18.5/165
20.5/170 18.5/130
22.5/550 21.0/445
21.5/375
19.5/300
21.5/325 19.5/280
20.5/250 19.0/220
18.5/525
16.0/525
18.0/460
16.0/405
18.5/370 16.0/360
Example: 19.2/398 =
14 ga. 16 ga.
(2.0 mm) (1.6 mm)
17.0/265
−
17.0/235 16.5/195
17.5/155
16.5/140
17.5/125 −
−
18.5/110
− −
16.5/385 16.5/320
15.5/220
16.0/265
15.0/185 14.7/150
14.5/120
15.0/125
15.0/120 14.5/95
−
15.5/95
13.0/125
12.5/120
13.0/110 12.5/100
−
13.0/85
−
13.0/60
17.5/180 17.0/170
−
17.5/145
17.5/125 −
19.5/305 19.0/265
19.0/260 18.0/180
19.0/250 18.0/170
−
18.5/185
13.0/510 12.5/510
−
13.0/405
− −
V
V
VOL TAGE
18 ga. 20 ga.
(0.8 mm)
(1.2 mm) (0.9 mm)
16.5/230 15.5/195
15.5/195
16.5/195
15.5/115
−
16.0/130
− −
− −
− −
14.5/225
15.5/315 14.5/225
14.5/145
15.0/165 14.5/145
14.0/105
14.0/105
14.5/125
−
14.5/120
− −
− −
− −
− −
− −
− −
− −
− −
− −
18.5/250
18.0/230
−
17.5/165
−
−
−
−
−
−
−
−
−
−
Ref. 198 198
OM-1321 Page 19
WIRE
SPEED
22 ga.
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−
−