However, changing language settings in EPLAN is not always intuitive. There is a distinct difference between changing the user interface (the menus and buttons) and changing the project data (the text inside your schematics).

Instantly, all text on your schematics that has a corresponding translation will switch. Untranslated text will usually fall back to the source language or display placeholders like ??? .

For maximum control, use the Export/Excel method . Export the project text to Excel, send it to a human translator, then re-import. This ensures technical accuracy (e.g., "MCB" doesn't become "Miniature Circuit Breaker" in one language and "Micro Circuit Blocker" in another).