By Gary Rosengren, Tolomatic Inc. | Machine Design
The IP (Ingress Protection or International Protection) code rating is an internationally recognized system developed to standardize the degree of protection that “enclosures” provide against foreign objects, water, or materials entering into these enclosures, causing damage or personal injury.  IP codes also apply to linear actuators.
IP Rating Chart
Practically speaking, the higher the numeric IP rating against dry solids and moisture, the higher the level of protection offered.  But how do these code ratings apply to rod-type and rodless linear actuators, and which ratings are appropriate for which applications?
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How IP Ratings Apply to Linear Actuators
Information on Electromate’s IP Rated products can be found at:  http://www.electromate.com/products.html