Variants of a mold are catalogued separately, so each one has its own sets and minifigs. Check these too if something you expect is missing here.

• 70026 Control Unit, Train, 12V 4 x 8 x 1 2/3 Remote Control Switch Motor Pair of this part
• 73112 Control Unit, Train, 12V 4 x 8 x 1 2/3 Manual Switch Motor Pair of this part