What does the protection level IP67/IP68 of the M16 connector mean, and how can one ensure compliance with these standards?

IP Rating Explanation for M16 Connectors

IP67

Complete protection against dust ingress, and can be immersed in water up to 1 meter deep for a short period of time without damage to the connector.

IP68

Complete protection against dust ingress, and can be continuously immersed in water at a specified depth (customizable by manufacturer) for long-term use.

Key Requirements for IP Rating Compliance

Installation & Maintenance Guidelines

Sealing Ring Integrity: Ensure the O-ring/gasket is intact (no cracks, deformation or aging) before installation
Proper Installation: Fit the sealing ring in the correct groove and ensure full contact with the mating surface
Torque Specification: Tighten the threaded connection to the rated torque (approximately 60 cNm) to ensure a secure seal
Housing Protection: Avoid scratches, dents or other damage to the connector housing that may compromise the seal
Compliant Cable Glands: Use certified cable glands matching the M16 connector to maintain overall IP rating

Note: Regular inspection of sealing components is recommended for connectors used in harsh environments (high humidity, chemical exposure, frequent vibration) to maintain IP rating compliance over service life.

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