What are the protection levels (IP ratings) of the M8 connector? What are the applicable scenarios for different IP ratings?

IP Protection Grades of M8 Connectors & Scenario Adaptation

Protection Grade Core Overview

Mainstream IP67 & High-grade IP68 : M8 connectors take IP67 as the mainstream protection grade, and some models with special shielding/locking structures support the higher-grade IP68. The protection performance is differentiated by waterproof depth and duration, and all IP grades are valid only under specific use conditions.

IP Grade Performance & Application Scenarios

IP67 Protection Grade

Complete dustproof (prevent all dust from invading) under normal temperature and pressure; no adverse effect when immersed in 1-meter deep water for a short time (within 30 minutes). Suitable for conventional industrial environments such as production workshops, automated production lines and non-flooded areas.

IP68 Protection Grade

Realize full dustproof effect, and can be immersed in water for a long time under specified pressure (such as 2-meter deep water for 24 consecutive hours). Suitable for humid/flooded scenarios such as food processing workshops, cleaning equipment and outdoor rainproof sensing nodes.

Key Note: All IP protection grades of M8 connectors are only valid when the connector is fully mated and the lock nut is tightened; the connector has no protection effect in the unmated state, and it is recommended to install a dust cap for protection at this time.

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