... 0 Rated Duty Cycle(%)60 Efficiency(%)85 Applied Welding Rod(mm)1.6-4.0Class of ... Features of MMA-2001.Adopt with advanced MOS/IGBT inverter technology, save energy, protect the environment, light ... voltage and over-current, thermostatic protection, moveable welding cable.4.Strong welding permeability, less splash, good weld appearance, ... complete accessories. 8.Carton box/BMC. arc 200 welding machine