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Data Line Protector RJ11 M/F 1FT




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Product Datasheet

The LPXTRJ11-1F surge suppressor is a high-current, solid-state device designed to protect equipment from transient over-voltages on telephone lines with RJ-11 connectors using pins 3 and 4. It performs this function by limiting the magnitude of transient over-voltages that are present on the pair relative to each other and from each relative to ground. Continuous bi-polar, bi-directional, non-interrupting protection is provided. The LPXTRJ11-1F utilizes silicon junction avalanche suppressor diodes as its sole suppression technology and automatically resets after each suppression function with no degradation of protection capabilities.

The LPXTRJ11-1F attaches in series with the load to be protected. It is also equipped with a 12" wire for the purpose of attaching the device to the system GND (required for proper suppression).


  • In-Line Protection for POTS (Plain Old Telephone Service) lines
  • Includes 1ft cord with RJ11 Plug.
  • Includes 1ft 20 AWG Ground wire
  • Integral mounting feet


  • Traditional Analog phone lines
  • DSL