The introduction of Inverter DC air plasma cutter CUT50 (D)is as follows: 1.A dvanced inverter technology ,High cutting frequency; 2.With arc maintainence device, applicable to automatical cutting equipment; 3.Touch and untouch arc initiation; 4.Stable arc, long working time. 5.220V Single phase, Portable, Fan-cooled, Thermostatic protection, suitable for DIY and family use. 6. D Series are for 110/220 duel voltage input, automatic input voltage changing 7.Complete accessories: cutting torch, welding cable,earth clamp, carton box The specification is as follow items: Input voltage: AC220 V ± 5% Single-phase. Input frequency: 50 Hz Power factor: 0.93 Cutting amperage: 10-50 A Max Cutting thickness:16 mm Rated output voltage:110 V Duty cycle: 60% Efficiency: 85%