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The SLP1 RJ11 series of surge suppressors are designed to provide protection to telecommunication equipment connecting via RJ11 plugs. Designed for traditional (2 wire) telephone circuits, the product is also compatible with modems and ADSL circuits.
The SLP1 RJ11 is a UL® Listed secondary protector intended for use in facilities where primary protective devices have been installed at the service entrance. The SLP1 RJ11A is a high-energy multi-stage primary protector intended for non-UL applications where higher surge ratings are required.