Resistance Graded RG® Insulators

RG® Insulators use semiconductive glaze technology first developed in Lapp’s Leroy, New York facility. Lapp’s RG® insulators have been the trusted technology of customers experiencing contamination related insulator issues for over 50 years.

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Why Choose LAPP Insulators

The LAPP Insulators Group is a leading manufacturer and supplier of high-voltage insulators with a global sales network and references in over 70 countries. In Germany, our company has its traditional roots in the renowned Rosenthal and Siemens brands and extends back to 1889 – in America to 1916.

The various LAPP Insulators sites all have their own history and their own journey that continues to this very day. This allows the existing Group to draw on a wealth of knowledge from different countries. Find out more about our strategy, philosophy, expertise, and our history. Innovation and tradition are a common thread at every level across the Group.

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