The part number for the replacement enclosure to suit the standard LE1D09 and LE1D12 DOL starters is DE1DS1. There are also replacement enclosures for the variants of these (No buttons on the cover, reset button on the cover, selector switch and reset button on the cover) which can be found in the catalogue section linked below.
Enclosed Starters - www.se.com/uk/en/download/document/A1%20-%20Enclosed%20starters_P_EN/
Please note that you can find the majority of our available PDF catalogues for Industrial products through our online database; https://digicat.se.com/