Parallel and series connection of 3-pole contactors:? To obtain a star point (3 parallel-connected poles)? To connect poles in parallel and thus increase the AC load passing through the flow path made up of the parallel-connected poles: LP, LY, LH, LF, LG.The relevant cable cross-sectional area may limit the maximum permissible current. Consult information in table below? To connect poles in series and thus increase the DC voltage controlled by the poles: LP, LY (only LY16-4 and LY38-4 secable strips).