Weidmueller SD TO 0,6X3,0

SD TO 0,6X3,0 likely represents a product, possibly a tool or component. "SD" probably indicates the brand, "TO" a model or series, "0,6" a size or dimension (likely metric, using a comma as a decimal separator), and "X3,0" a length or other dimension of 3.0 units (likely metric).  To confirm the exact product and specifications, it's best to search online, check the SD brand's website, or consult relevant catalogs or suppliers.