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Furse ESP RF Series

Combined Category D, C, B tested protector (to BS EN 61643-21) suitable for RF systems using coaxial cables at frequencies between DC and 2.7GHz and where DC power is present.

Suitable for RF systems with power up to 2.3kW. For use at boundaries up to LPZ 0A to protect against flashover (typically the service entrance location) through to LPZ 3 to protect sensitive electronic equipment.

Features and Benefits

  Restricts let-through voltage below damage levels of interface circuitry
  Very low attenuation and near unity VSWR over a wide range of frequencies ensure the protectors do not impair system performance
  Wide bandwidth means a single product is suitable for a range of applications, including the transmission of DC power
  Easily mounted and earthed via fixtures on the base of the unit
  Available with N, 7/16 DIN and BNC connectors
  Additional mounting plates give increased flexibility
  Robust silver plated aluminium housing

Data Sheet
RF Questionnaire


The Standard RF protector offers a cost effective protection solution for use on coaxial cables to protect RF transmitter and receiver systems, including electronics located at the antenna or dish.

Typical examples include cell sites, military communications, satellite earth stations and pager systems. They can be used in applications where DC power is required to pass to the equipment.


In a building, connect in series with the coaxial cable near where it enters or leaves the structure, or close to the equipment being protected.

On a mast, connect in series with the coaxial cable near the antenna/dish being protected. Install in a radio communications room, an existing cabinet or a suitable enclosure.


  ESP RF 111x21
  ESP RF AA1x21
  ESP RF 441x21
  ESP RF 111A11
  ESP RF 441A11

Please note - Product designs and specifications are subject to change without notice. The user is responsible for determining the suitability of this product.

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