3 digit IP ratings
3 digit IP ratings
(OP)
Concerning 3 digit IP ratings: There seems to be some ambiguity as to the standards for the 3rd digit, which refers to mechanical impact survivability.
When trying to figure out an IP65-7 rating, the -7 rating is listed as meaning able to survive 6.0 joules of impact (1.5 Kg @ 40cm), at www.accesscomms.com.au/IP.htm
However, www.engineeringtoolbox.com/32_452.html does not show a -7 rating, but lists the 6.0 joule impact survival rating as -5. 7 is not listed; largest rating is 6 (20.0 joules).
Which is right?
When trying to figure out an IP65-7 rating, the -7 rating is listed as meaning able to survive 6.0 joules of impact (1.5 Kg @ 40cm), at www.accesscomms.com.au/IP.htm
However, www.engineeringtoolbox.com/32_452.html does not show a -7 rating, but lists the 6.0 joule impact survival rating as -5. 7 is not listed; largest rating is 6 (20.0 joules).
Which is right?





RE: 3 digit IP ratings
X= Protection against solid objects
Y= Protection against liquids
Z= Protection against mechanical impacts
Z
5= 2 joules (0.5kg from 400mm)
7= 6 joules (1.5kg from 400mm)
9= 20 joules (5.0kg from 400mm)
Frequently enclosures omit the third digit (Z).
Trust this helps.