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What is the difference between IP 65 and IP40 on selections of ZB4BL9334 dual pushbuttons?

Product Line:
22 mm push buttons

Environment:
Products sold and used in the United States

Resolution:
IP 40 is protected against solid objects, but is not watertight, similar to NEMA 1, IP 65 is protected against dust and water jets, similar to NEMA 4.

(1st number )
Protection against contact and penetration of solid bodies
(2nd number )
Protection against the penetration of liquids.

4= protection against solid 0= not protected
6= Dust tight 5= protection against water jets


 
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