Furse Total Solution to Earthing & Lightning Protection

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For PSTN (e.g POTS, dial-up, lease line, T1/E1, *DSL and Broadband) and
U interface ISDN lines, use ESP KT1 (or ESP KT1/PTC) and ESP K10T1 (or
ESP K10T1/PTC)
For S/T interface ISDN lines, use ESP KT2 & ESP K10T2
Protect single lines with ESP KT1, ESP KT2 or ESP KT1/PTC
Protect all ten lines on a disconnection module with ESP K10T1/2
Furse, Wilford Road, Nottingham, NG2 1EB • Tel: +44 (0)115 964 3700 • Email: • Web:
ESP KT & KE Series
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
Repeated protection in lightning intense environments
Colour of housing distinguishes electrically different protectors - avoids
confusion when installed together on the same distribution frame
Quick and easy plug-in installation, with ‘bump’ location feedback
Under power line cross conditions /PTC versions offer safe disconnection
during fault duration. Unit auto-resets once fault corrected
At larger installations ESP K10T1/2 and ESP K10T1/PTC provide all in one
protection for all ten lines on LSA-PLUS disconnection modules
Use the ESP KE10 to provide trouble free earthing for up to ten
ESP KT1/2 and ESP KT1/PTC (per disconnection module)
ESP K10T1/2 and ESP K10T1/PTC have an integral earth connection, and
an external M4 earth bush for use with non-metallic LSA-Plus frames
ESP KT1/PTC and ESP K10T1/PTC have resettable overcurrent protection
and are rated for power cross faults
ESP KT1, ESP KT1/PTC, ESP K10T1 & ESP K10T1/PTC are suitable for
telecoms applications in accordance with Telcordia & ANSI Standards
Features and benefits
Application
Combined Category D, C, B tested protector (to BS EN 61643)
suitable for use on ten line LSA-PLUS disconnection modules to
PBX telephone exchanges, ISDN and other telecoms equipment with
LSA-PLUS disconnection modules. For use at boundaries up to
LPZ 0B to protect against flashover (typically the service entrance
location) through to LPZ 3 to protect sensitive electronic equipment.
Install protectors on all lines that
enter or leave each building
(including extensions to other
buildings).
Identify the lines requiring
protection and plug-in the
protector (ensuring the correct
orientation) for a series
connection. Plug ESP K10T1/2
directly into each disconnection
module requiring protection.
ESP KT1/2 and ESP KT1/PTC must
be installed via the ESP KE10 earth
bar. Clip an ESP KE10 on to the
disconnection module and plug an
ESP KT1/2 or ESP KT1/PTC in to
each line on the module that
needs protecting.
In the unlikely situation that the
protector is damaged, it will
sacrifice itself and fail short circuit,
taking the line out of commission -
indicating it needs replacing and
preventing subsequent transients
from damaging equipment.
Installation
Firmly push an ESP K10T1 (or ESP K10T2) into
each disconnection module requiring
protection, so that it clips securely into the
earth point, at each end of the module
Having pushed the ESP KE10 earth bar on to
the disconnection modules’ earth points,
firmly push an ESP KT1 (or ESP KT2) into
each line/pair requiring protection
For further information on global
telephony applications, see
separate Application Note AN005
(contact us for a copy).