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Comparison Stal MMA-250 vs Stal MMA-245

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Stal MMA-250
Stal MMA-245
Stal MMA-250Stal MMA-245
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Typeinverterinverter
Welding type
MMA
MMA
Specs
Welding currentDCDC
Input voltage230 V230 V
Power consumption5.5 kVA5.5 kVA
Open circuit voltage68 V68 V
Min. welding current20 А20 А
Max. welding current250 А245 А
Duty cycle60 %60 %
Max. electrode size5 mm5 mm
More features
Hot Start
Anti-Stick
Hot Start
Anti-Stick
General
Protection class (IP)2121
Insulation classHH
Weight4 kg4 kg
Added to E-Catalognovember 2017june 2016

Max. welding current

The highest current that the welding machine is capable of delivering through the electrodes during operation. In general, the higher this indicator, the thicker the electrodes the device can use and the greater the thickness of the parts with which it can work. Of course, it does not always make sense to chase high currents — they are more likely to damage thin parts. However, if you have to deal with large-scale work and a large thickness of the materials to be welded, you simply cannot do without a device with the appropriate characteristics. Optimum welding currents depending on materials, type of work (see "Type of welding"), type of electrodes, etc. can be specified in special tables. As for specific values, in the most “weak” models, the maximum current does not even reach 100 A, in the most powerful ones it can exceed 225 A and even 250 A.
Stal MMA-250 often compared
Stal MMA-245 often compared