Comparison Stal MMA-250 vs Stal MMA-245

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	Stal MMA-250	Stal MMA-245
	Outdated Product	from $50.97 up to $77.64 Outdated Product
all specs only differences
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Type	inverter	inverter
Welding type	MMA	MMA
Specs
Welding current	DC	DC
Input voltage	230 V	230 V
Power consumption	5.5 kVA	5.5 kVA
Open circuit voltage	68 V	68 V
Min. welding current	20 А	20 А
Max. welding current	250 А	245 А
Duty cycle	60 %	60 %
Max. electrode size	5 mm	5 mm
More features	Hot Start Anti-Stick	Hot Start Anti-Stick
General
Protection class (IP)	21	21
Insulation class	H	H
Weight	4 kg	4 kg
Added to E-Catalog	november 2017	june 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.