MMA Welder Features: 1) high efficiency,energy saving and portability 2) stable welding arc 3) canweld stainless steel,alloy steel,carbon steel,copper andother nonferrous metals 4)can use various different specification and materials of electrode,including acidity, alkalescenceand cellulose covered electrode 5) small in size,light in weight,simple installation and easy operation DataARC-160ARC-200ARC-250ARC-300ARC-400Input power voltage (V)AC-220±10AC-220±10AC-380±10AC-380±10AC-380±10Frequency (Hz)50/6050/6050/6050/6050/60Rated input current MMA (A)334314.419.727.6No-load voltage (V)56V56V54V68V60VCurrent adjusting voltage (A)15-16015-20015-25020-31520-400Rated output coltage MMA (V)26.4283032.636Duty cycle (%)6060606060No-load power (W)<100W<100W<100W<100W<100WEfficiency (%)8080858585Power factor0.730.730.930.930.93Insulation classFFFFFShell protection classIP21IP21IP21IP21IP21Overall dimension (mm)375×155×232375×155×232480×204×303530×204×360565×306×432Net weight (kg)78172027Gross weight (kg)910182229 We Shanghai Hutong Welding Electric Co.,Ltd. is one of the top ten welding and cutting machines manufacturers in China. Our products are MIG/MAG welder,TIG welder,Submerged Welder, MMA welder. All we have areIGBT/MOSFETinverter welder, thyristor welder and diode welder etc. Contacts: William Gu Tel:0086-21-57794188 Mp:0086-15901700817