... . 5. Less deformation ensure welding appearance well. Model Number: NBC-400 Input voltage(V): 3-380 Frequency(Hz): 50/60 Phase ... (V): 18-34 Current adjusting scope(A): 80-400 Rated welding current(A): 400 Rated duty cycle(%): 60 Wire(mm): 0.8 ... , overcurrent, oerload, to ensure welding safety, durable and reliable. NBC-400