10.16 mm Pitch, 4-Position Plug Housing for Power Harnesses
The 2-917809-2: The 10.16 mm pitch and 0.400" row spacing give generous creepage for power circuits — this is a housing sized for the main power distribution, not a signal line. The 2-row layout with 4 positions means two cavities per row, and the polarizing key ensures the plug mates only in the correct orientation with the corresponding receptacle.
Panel-Mount Fit and Polarizing Key
This is a panel-mount plug housing with a polarizing key that prevents incorrect mating — a practical detail for field-service harness replacement where the technician works by feel. The crimp termination means the contacts are installed into the housing after the wire is crimped, which is standard for high-volume harness assembly. The glass-filled thermoplastic housing provides the dimensional stability and flame resistance expected for equipment inside an enclosure.
How It Compares: 4-Position Plug vs. 2-Position Sealed Plug
The 2-917809-2 (4 positions, 10.16 mm pitch, 2 rows, panel mount) sits alongside the 1-1703532-1 (2 positions, 9.50 mm pitch, 1 row, free-hanging, sealed, locking ramp). The key decision difference: the 1-1703532-1 is a sealed, single-row, free-hanging plug for in-line harness connections where environmental sealing matters, while the 2-917809-2 is an unsealed, dual-row, panel-mount plug for a fixed bulkhead installation. The 10.16 mm vs 9.50 mm pitch means the two are not footprint-compatible — choose based on the mating receptacle and the sealing requirement.