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Furse ESP WT Series

Combined Type 1 and 2 tested protector (to BS EN 61643-11) for use on the main distribution board within wind turbines, for equipotential bonding. For use at boundaries up to LPZ 0A to protect against flashover (typically the main distribution board location) through to LPZ 2 to protect electrical equipment from damage.

Features and Benefits

  Enhanced protection (to BS EN 62305) offering low let-through voltage further minimizing the risk of flashover creating dangerous sparking or electric shock
  Repeated protection in lightning intense environments
  The varistor based design eliminates the high follow current (If) associated with spark gap based surge protection
  Compact, space saving design
  Indicator shows when the protector requires replacement
  Remote signal contact can indicate the protectors' status through interfacing with a building management system

Data Sheet


Use on 690 V three phase mains power supplies and power distribution boards for protection against partial direct and indirect power supplies. The services (typically 3 phase 400 V mains, UPS, data, signal and telecom lines) to the cabinet within the wind turbine nacelle will require additional protection.


Protector to be installed in the main distribution panel with connecting leads of minimal length. The protector should be fused and is suitable for attachment to a 35 mm top hat DIN rail.


  ESP 690/25/WT
  ESP 690/12.5/WT

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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