Cable glands are typically 2 thread assemblies. Normal nut and sealing O-ring mounts gland on wall of enclosure. Special nut tightens seal rubber on cable, producing IP67 or better ingress protection. Upside, natural pull resistance. Simple, low cost. Downside, requires space for cable to board assembly inside enclosure. Requires additional connector for middle of cable separation when disconnecting modules for maintenance/repair.

Sealed connectors are wire to wire (panel mount) or wire to board (compact fit PCB enclosure). Screws fasten housing with seal on wall of enclosure. Mating housing and seal mounts with friction, locking detent, screws, or thread. Upside (WtB), compact assembly with no install work inside enclosure. Enclosure is easily disconnected from cable for hassle free transport/maintenance. Downside, requires close fitting custom enclosure. Shock at connector transmitted closer to PCB. Harder to replace considering longterm part availability.

Deeper and other ideas appreciated.

  • \$\begingroup\$ A gland permits ingress via the interior of the cable. Depending on the filling of the cable, and the sealing of the other end, humidity can get into the box. If the cable is submerged, humidity can diffuse into the cable (depending on the sheath material), and end up in your box. \$\endgroup\$ – elchambro Feb 21 at 4:53

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