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Furse ESP H Series

Combined Category D, C, B tested protector (to BS EN 61643-21) suitable for twisted pair signalling applications which require either a lower in-line resistance or an increased current than the D or E Series. Also suitable for DC power applications less than 4 amps. Available for working voltages of up to 6, 15, 30, 50 and 110 volts.

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

  Very low let-through voltage (enhanced protection to BS EN 62305) between all lines - Full Mode protection
  Full mode design capable of handling partial lightning currents as well as allowing continual operation of protected equipment
  Repeated protection in lightning intense environments
  Ultra low (under 0.05�) in-line resistance allows resistance critical applications (e.g to be protected
  Very high (4A) maximum running current
  Strong, flame retardant ABS housing
  Supplied ready for flat mounting on base or side
  Built-in DIN rail foot for simple clip-on mounting to top hat DIN rails
  Colour coded terminals give a quick and easy installation check - grey for the dirty (line) end and green for clean
  Screen terminal enables easy connection of cable screen to earth
  Substantial earth stud to enable effective earthing
  Integral earth plate enables enhanced connection to earth via CME kit

Data Sheet


Use these applications to protect resistance sensitive or higher running current systems, e.g. systems with long signal lines, or DC power applications.


Connect in series with the data communication or signal line either near where it enters or leaves the building or close to the equipment being protected (e.g. within the control panel). Either way, it must be very close to the system's earth star point. Install protectors either within an existing cabinet/cubicle or in a separate enclosure.


  ESP 06H
  ESP 15H
  ESP 30H
  ESP 50H
  ESP 110H

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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