What’s an IP rating? Posted On May 28, 2018 By PSS In Technology / IP (or “Ingress Protection”) ratings are defined in international standards. They are used to define levels of sealing effectiveness of electrical enclosures against intrusion from foreign bodies (tools, dirt etc.) and moisture.” The 5 biggest mistakes made when ordering a UPS Should UPS ever be switched off? Leave a Reply Cancel reply Save my name, email, and website in this browser for the next time I comment.