The utility model discloses an electric device, especially a distribution box, including a box be equipped with a connecting rod outside the back of box be fixed with at least one connection support on the connecting rod, and every bottom of connecting the support is all fixed to the back of box on the both sides tip of connecting rod all is equipped with an arc mounting panel, every all be equipped with on the arc mounting panel rather than the consistent arc spout of camber, the both sides tip of connecting rod all is equipped with the screw thread section, and runs through the arc spout on its corresponding arc mounting panel separately, and all carries on spacingly, a pair of through lock nut deep floor through at least one between the arc mounting panel fixes, and is equipped with the location mounting hole on deep floor. Its technical problem who has solved " when distribution box used, distribution box's front orientation can change " in abominable installation environment (when for example the electric box faces the barrier installation), it is good to have possessed stable in structure, a series of advantages such as long service life.