·６·
wind.
(4)
The distance between welder and wall must be more than 20cm,
between welders more than 10cm to ensure enough heat radiation.
(5)
When using water cooled gun, must be care of not being frozen.
2
．
Requirement of input volt
(1)
Input volt must be standard sine wave, effective value 380-440V,
frequency 50Hz/60Hz
(2)
Unbalance degree of 3- phase volt must be no more than 5%
3
．
Power supply:
Table1: The size of fuse and breaker in the table are for reference only.
Product type
IN
MIG-250 I
IN
MIG-400 I
IN
MIG-500 I
IN
MIG-630 I
Power supply
3 phase AC380V
Min. capacity
Power network
12KVA
22KVA
38KVA
54KVA
Generator
20KVA
30KVA
50KVA
70KVA
Input volt
protection
Fuse
20A
30A
50A
60A
Circuit breaker
20A
32A
63A
100A
Cable size
(cross-section)
Input volt
≥
1.5mm
2
≥
2.5mm
2
≥
6mm
2
≥
10mm
2
Output volt
25mm
2
35mm
2
70mm
2
95mm
2
Ground lead
≥
1.5mm
2
≥
2.5mm
2
≥
6mm
2
≥
10mm
2
