Description Technique

INT.AUT.3VA 400A 3P 85KA ETU3 LSI L/T

This appears to be a technical description or product code. Without further context, it's difficult to provide a precise translation and structure. Let me know if you have any additional information about this text, such as: * **The type of product it describes:** Is it an electrical component, a machine, etc.? * **The intended audience:** Who is this description for? Engineers, consumers, etc.? * **Any specific terms you need translated:** Are there any words or abbreviations in the original text that are particularly important to understand? With more context, I can provide a more accurate and helpful translation.