The Electric Currents Solid to Shell Via Boundary multiphysics coupling assures continuity of the electric potential between The Electric Currents in Shells Interface and The Electric Currents Interface. The Electric Currents Solid to Shell Via Boundary node is available from the Multiphysics menu in the Physics toolbar or by right-clicking the Multiphysics Couplings node in Model Builder, if both The Electric Currents in Shells Interface and The Electric Currents Interface are available.