IP Stands for Ingress Protection
Motor Controller: IP65
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6: No ingress of dust; complete protection against contact (dust tight). A vacuum must be applied. Test duration of up to 8 hours based on airflow.
5: Water projected by a nozzle (6.3 mm) against enclosure from any direction shall have no harmful effects.
6: Water projected in powerful jets (12.5 mm nozzle) against the enclosure from any direction shall have no harmful effects.
7: 1 m depth Ingress of water in harmful quantity shall not be possible when the enclosure is immersed in water under defined conditions of pressure and time (up to 1 m of submersion).