... input current18 ANo-load voltage62 VDuty cycle60%Output current range10-315 APulse frequency0.5-12 HzUp-slope ... 600 Features of TIG WELDING DEVICE WSM315:1. IGBT inverter technology and precision constant current feedback control technology, soft switch ... performance;3. Thermostatic protection, over-voltage protection, over-current protection, under-voltage protection,;4. Applicable for TIG and ...