In an electric connection box containing a bus bar board in a case, heat
radiation member-side bus bars are connected to a heat radiation member,
and switching devices, such as FETs, are mounted on the bus bars. The heat
radiation member-side bus bars may project beyond an end surface of the
heat radiation member, and form heat radiation member-side electrical
component connection terminals. Electrical component connection bus bars
project from a bus bar board to form bus bar board-side electrical
component connection terminals. Electrical components are bridged between
the heat radiation member-side electrical component connection terminals
and the bus bar board-side electrical component connector terminals.
