Weidmueller SD SET S2.0-5.5

SD TO 0,4X2,5 likely refers to a product, possibly a tool or component. "SD" probably indicates the brand, "TO" a model or series, "0,4" a size or dimension (likely metric), and "X2,5" a length or other dimension of 2.5 units (likely metric). To confirm the exact product and specifications, it is recommended to search online, check the SD brand's website, or consult relevant catalogs or suppliers.