Explain IP rating standard for industrial connectors, what IP65 IP67 mean, how to choose dustproof waterproof connectors for harsh working environment.
IP rating is a critical specification when you pick industrial electrical connectors. The two digits of IP code represent dust protection level and liquid‑water protection level separately.
The first digit stands for solid / dust resistance, ranges from 0‑6. Level 6 means complete dust‑tight, no dust can enter inside connector housing. The second digit represents water resistance from 0‑8. IP65 can resist low‑pressure water jet. IP67 supports short‑time immersion under water.
Please note: IP rating only works when connector is fully mated and locked. Unmated connectors lose most waterproof and dust‑proof performance. For outdoor, wash‑down workshop, or dusty factory environment, do not use low‑IP consumer‑grade connectors.
Always confirm real test report from your connector supplier. High IP‑rated industrial connectors effectively extend service life in harsh working conditions.