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what is the meaning of "i.p.-43" and duty cycle-s1 on the
name plate of a asynchronous machine?
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Answer / ik3232
IP-43 Rating - The first digit designation "4" means
protection against "solid objects equal or greater than 1mm
(0.04") in diameter". The second digit "3" means protection
against "sprayed water" ; "Spray water falling
perpendicularly at an angle of up to 60-deg may not have any
damaging effects".
If u want More Details,then :
http://en.wikipedia.org/wiki/IP_Code#cite_note-0
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