... difficulties for the users, IAC-380 series intelligent AC dummy load provide a scientific and convenient measure to check the power ... analysis: IAC-380 series can analyze the current, voltage 2-20 THD (total harmonic distortion) in each phases. IAC-380 series ... overheating precaution function, IAC-380 series can cut off the load, terminate the discharge and alarm the user automatically when overheating ...