Detailed Product Description DC inverter MMMA welding equipment,High duty cycle,suitable for long time welding ,protecting for over duty; Automatic voltage pulsation compensation capability;Stable arc ,good welding surface ,deep welding pool ,little welding saptter ;Force compensation ability ItemMMA-400IMMA-315IPower voltage(V)(3PH)380380Rated input capacity (KVA)1813Input voltage frequency (Hz) ...