These are all low-voltage distribution devices rated at 400V, compliant with the IEC 61439 standard, compatible with power supply frequencies of 50/60Hz, and with rated currents ranging from 400 to 6300A, capable of meeting distribution needs in various scenarios. Among them, MNS, WE-LVS, and GGD have a rated voltage of 0.4kV; while ABB Mmax, Schneider BlokSet, and Siemens SIVACON 8PT/S8 have a wider rated voltage range (0.4–0.69kV), offering more flexible adaptability.
