943130fd_What_are_NEMA_and_IP_ratings___NEMA_Definition
[NEMA Rating] 6P [IP Equivalent] IP67 [IP Definition (1st Number)] 6 = Totally protected against dust [IP Definition (2nd Number)] 7 = Protected against the effects of temporary immersion between 15cm and 1m. Duration of test 30 minutes. [NEMA Definition] 
Enclosures constructed for either indoor or outdoor use to provide a degree of protection to the personnel against incidental contact with the enclosed equipment; to provide a degree of protection against falling dirt; against hose-directed water and the entry of water during prolonged submersion at a limited depth; and that will be undamaged by the external formation of ice on the enclosure
What are NEMA and IP ratings?
NEMA Definition