What This 21-Position Junior Power Timer Plug Housing Is
It carries 21 positions across 3 rows at a 5.00 mm pitch with a 5.51 mm row spacing — a layout that packs more circuits into a single connector body than the typical 2-row power timer housing, which matters when the harness junction point is tight on panel space.
At 21 circuits in 3 rows, each row carries 7 positions — a symmetrical layout that balances the crimp terminal insertion force across the housing cavity. The 3-row arrangement means the harness builder needs a crimp tool that indexes across all three rows during terminal insertion; the free-hanging in-line mounting keeps the connector body off the board, so the wire bundle takes the strain, not a PCB solder joint.