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Furse Earthing and Lightning Protection and Electronic Systems Protection by Thomas & Betts

Twisted Pair Lines
Use on twisted pair lines, e.g. those found in process control equipment, modems and computer communications interfaces.

  • 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

  • Low in-line resistance minimises unnecessary reductions in signal strength

  • ESP 06 D has Network Rail Approval PA05/00809. NRS PADS reference 086/000551

  • ESP TN is suitable for telecommunication applications in accordance with Telcordia and ANSI Standards 

CLICK HERE for more information


Twisted Pair Lines (Lower In-line Resistance / Higher Current / Higher Bandwidth)
Use these units to protect resistance sensitive, higher frequency or running current systems, e.g. high speed digital communications equipment or systems with long signal lines. 

  • 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

  • Very low (1Ω) in-line resistance for resistance allows resistance critical applications (e.g. alarm loops) to be protected

  • High (1.25A) maximum running current

  • ESP 06E and ESP 15E have Network Rail Approval PA05/02047. NRS PADS reference 086/000201 (ESP 06E) and
    086/000200 (ESP 15E) 

CLICK HERE for more information


Twisted Pair Lines (Lower In-line Resistance / Higher Current)
Use these applications to protect resistance sensitive or higher running current systems, e.g. systems with long signal lines, or DC power applications.

  • 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 (<0.05Ω) in-line resistance for resistance allows resistance critical applications (e.g. alarm loops) to be protected

  • Screen terminal enables easy connection of cable screen to earth

  • Very high (4A) maximum running current 

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Ready-boxed for 2 or 4 Wire Twisted Pair Lines
Based on the versatile ESP D Series and ESP TN range, use these ready-boxed protectors on twisted pair lines in dirty or
damp environments.
 

  • 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

  • Low in-line resistance minimises unnecessary reductions in signal strength

  • Ready-boxed to IP66 and supplied ready for flat mounting

  • ESP TN/BX and TN/2BX is suitable for telecommunication applications in accordance with Telcordia and ANSI Standards

  • ESP TN/BX has Network Rail Approval PA05/02877. NRS PADS reference 087/037286 

CLICK HERE for more information


Space Critical Applications
Use these protectors where installation space is at a premium and large numbers of lines require protection. Available for working voltages of up to 6, 15, 50 and 110 volts. 

  • 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

  • ESP RTDQ protects three 3-wire lines in RTD applications

  • Almost twice as pace efficient as smallest competitor

  • ESP TNQ is suitable for telecommunication applications in accordance with Telcordia and ANSI Standards

  • Available as a 'UL Listed' version, add/UL to part code (ESP 06Q, ESP 15Q, ESP 30Q and ESP 50Q only)

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Slim Line Protector with Removable Protection Module
Use these protectors where installation space is at a premium and large numbers of lines require protection (e.g. process control, high speed digital communication equipment or systems with long signal lines). 

  • Very low let-through voltage (enhanced protection to BS EN 62305) between all lines – Full Mode protection

  • Ultra slim 7mm width ideal for compact protection of large numbers of lines (e.g. process control installations)

  • Two stage removable protection module with simple quick release mechanism allowing partial removal for easy line commissioning and maintenance as well as full removal for protection replacement

  • Very low (1Ω) in-line resistance allows resistance critical applications (e.g. alarm loops) to be protected

  • High (750mA) maximum running current

  • Suitable for earthed or isolated screen systems - add /I suffix to part number for versions that require isolated screens - e.g. ESP SL30/I

  • Built-in innovative DIN rail foot with locking feature for simple positioning and clip-on mounting to top hat DIN rails 

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Slim Line Protector for Hazardous Areas
Use these protectors in hazardous environments where installation space is at a premium and large numbers of lines require protection (e.g. process control, 4-20mA loops, fire and gas detectors and shut-down systems).
Suitable for high speed digital communication equipment or systems with long signal lines. 

  • Approved for use in hazardous environments for the protection of Intrinsically Safe circuits
    (Classification: Ex II 2(1)G, Ex ia (ia Ga) IIC T4 Gb)

  • Very low let-through voltage (enhanced protection to BS EN 62305) between all lines – Full Mode protection

  • Ultra slim 7mm width ideal for compact protection of large numbers of lines (e.g. process control installations)

  • Negligible self-capacitance and self-inductance offering minimal interference when protecting Intrinsically Safe circuits

  • Two stage removable protection module with simple quick release mechanism allowing partial removal for easy line commissioning and maintenance as well as full removal for protection replacement

  • Very low (1Ω) in-line resistance allows resistance critical applications (e.g. alarm loops) to be protected

  • High (750mA) maximum running current

  • Suitable for earthed or isolated screen systems - add /I suffix to part number for versions that require isolated screens - e.g. ESP SL30/I

  • Approval references for ESP SLX Series: IECEx SIR 10.0030X, Sira 10ATEX2063X

CLICK HERE for more information


Data & Signal Lines with LSA-PLUS Modules
Use these units to protect signal data, control and instrumentation systems with LSA/PLUS disconnection modules.

  • Low cost protection for large numbers of data and signal lines

  • 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

  • Provides repeated protection in lightning intense environments

  • Colour of housing distinguishes electrically different protectors to help avoid confusion when installed with other protectors (e.g. the ESP KT1/2) on the same distribution board

  • Quick and easy plug-in installation

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PCB Mount Applications
PCB mount versions of the popular ESP D, TN and E Series protectors, use within OEM data communications, signal and telephone systems, where transient overvoltage protection needs to be integral to the unit. 

D Series 

  • Suitable for wave soldering

  • 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

  • Provides repeated protection in lightning intense environments

  • Low in-line resistance minimises unnecessary reductions in signal strength

  • ESP PCB/TN is suitable for telecommunication applications in accordance with Telcordia and ANSI Standard

E Series 

  • Suitable for wave soldering

  • 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

  • Provides repeated protection in lightning intense environments

  • Very low (1Ω) in-line resistance for resistance critical applications

  • High (1.25A) maximum running current

  • Higher bandwidth enables higher frequency data communication 

CLICK HERE for more information


Three Wire RTD Applications
Use on three wires to protect monitoring equipment in RTD systems. 

  • Protects all three wires on a 3-wire RTD system with a single protector

  • 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

  • Low in-line resistance minimises reductions in signal strength

  • Colour coded terminals give a quick and easy installation check

CLICK HERE for more information

Etech Components, Unit 14 Park Court, Sherdley Business Park, Sullivans Way, St.Helens, Merseyside, WA9 5GZ