300 AMP The 300 amp advanced process welders automatically adjusts to input power from 200-600V, 50/60 Hz, 1/3 phase. The Power Wave® S350 provides an extremely fast arc response. 500 AMP The 500 amp advanced process welders include Power Wave® S500 and offer multi-process capability for stick, DC TIG, pulsed, and flux-cored welding. Inverter technology with PowerConnect™ adjusts. 700 AMP The 700 amp Power Wave® advanced process welders are for high amperage, high duty cycle applications in the heavy equipment, transportation and other fabrication industries. ACCESSORIES Accessories for advanced process welders include options to improve the functionality of your welder such as user interface kits, water coolers, controllers, and advanced modules.