With 400V, both heating elements are used; with 230V, only one heating element is used. When using the machine with 400V, the washing time is reduced by a few minutes. However, I cannot say by how many minutes. We plan to connect the washing machine with 400V.

Your question has been unanswered for some time now. In the meantime, have you found a suitable answer elsewhere or have you even bought the product and possibly tried it out? Otherwise, I recommend contacting the manufacturer directly.