Main fuse

The  is an item added to Fallout 3 in the Broken Steel DLC pack.

Overview
The Main Fuse is a quest item added in Broken Steel. On the quest Who Dares Wins, you find a broken fuse box that activates the train to the left. A robot named Presidential Metro Sentry Bot is carrying it. It is required to fix the train. Should the robot survive the ghoul attack, he will eventually replace it himself.

Related quests

 * Who Dares Wins

Bugs
There is a bug where, when picked up, the character immediately drops it, then it falls through the world.