MIG series welding machine has an excellent volt-ampere characteristic, whose graph is shown as the
following figure. The relation between the rated loading voltage U2 and welding current I2
is as follows: U2=14+0.05I2(V)
2.3
Volt-Ampere
Characteristic
2.4
Principles
of welding
44
14
0
600
I
o
（
A
）
U
o
（
V
）
Working point
Volt-ampere characteristic
The relation between the rated loading
voltage and welding current
3
Installation
and
Adjustment
3.1
Parameters
Models
Parameters
GRAND MIG 315 COMPACT
Input Voltage
（
V
）
3~380/400/440±10%
Frequency (HZ)
50/60
Input Current (I1max)
（
A
）
23
Input Power
（
KW
）
11
Welding Current
（
A
）
50-315
Welding Voltage
（
V
）
13.5-30
No-load Voltage
（
V
）
56
Duty cycle
（
40
℃
）
40% 315A
60% 250A
100% 200A
Diameter (mm)
Fe:0.6/0.9/1.0/1.2 SS:0.8/0.9/1.0/1.2
Flux-Cored:0.6/0.8/0.9/1.0/1.2
Protection class
IP23
Insulation class
H
Dimensions
（
mm
）
660*280*445
Weight
（
Kg
）
25
Power Factor
0.7
