An IP rating describes a tested ingress-protection condition; it is not a universal promise that every assembly survives every washdown, immersion depth or installation. The complete connector configuration and test conditions matter.
The rating normally applies to a defined condition
Confirm whether the published rating applies mated, unmated with a protective cap, or installed in a specified panel. A sealed connector can still leak through an incorrect cable diameter, loose gland, damaged O-ring, unsuitable panel cutout or incomplete mating.
LMConn catalog material includes waterproof push-pull families and threaded circular connector options. Because ratings vary by family and configuration, the model drawing and current technical data should be reviewed before release.
Questions that IP67 or IP68 alone cannot answer
- Actual immersion depth, time and number of cycles.
- Water temperature, thermal shock and pressure changes.
- High-pressure washdown or directed spray conditions.
- Salt water, oil, coolant, cleaning agents or other chemicals.
- Unmated exposure and required sealing caps.
- Cable jacket compatibility and gland compression.
Build the sealing path into the drawing
The interface-control drawing should identify the mating pair, panel mounting, seals, cable OD range, gland components and cap requirements. Assembly instructions should define torque or engagement checks where applicable. Inspection criteria need to be measurable rather than using the word “waterproof” alone.
When to request project testing
If the application involves long-term submersion, repeated pressure cycles, moving cables, aggressive fluids or safety-critical equipment, define a project-specific validation plan. State sample quantity, water depth or pressure, exposure time, temperature, acceptance criteria and whether the test is performed before or after mechanical cycling.
The IP code is a useful filter. The approved configuration and agreed validation determine whether the complete installation is suitable.