The 3101029, also known as D-MTK, is an end cover designed to provide a protective and insulating termination for terminal blocks. It is constructed from gray PA 6.6 material, featuring a UL 94 V0 flammability rating and a wide operating ambient temperature range of -60 °C to 105 °C. The cover's dimensions are 46 mm in length, 28.7 mm in height, and 1 mm in width. Its robust material properties and compliance with fire protection standards for rail vehicles (DIN EN 45545-2) make it a reliable component for industrial and transportation applications.