Westweld NB-350MK, Manual Instruction

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2
Positive negative
Current Voltage
Arc characteristics Overheat
Lack-voltage MIG/MAG
Gas check Non-crater
With crater
Table 1 Symbol instruction
3 Specifications
3.1 Main technical parameters
Item Unit
Model
NB-350MK NB-500MK
Input power V
／
Hz 3
～
380±15
％
50
／
60
rated input capacity KVA 17.4 23.8
rated input current
A 26.5 36.2
rated output current
A
350 500
rated output voltage
V
31.5 39
rated non-load voltage V 69 83
duty cycle - 60%
（
40
℃）
efficiency
- 87
％
89%