204 / 336
11/4
Total Solution to Earthing & Lightning Protection |
9AKK106354A3360
11
Mains power protection
ESP 240/XXX Series
Combined Type 1 and 2 tested protector (to BS EN 61643) for use on the main
distribution board, particularly where a structural Lightning Protection System (LPS)
is employed, for equipotential bonding. For use at boundaries up to LPZ
0
to
protect against flashover (typically the main distribution board location) through
to LPZ 2 to protect electrical equipment from damage.
Installation
Protector to be installed in the main distribution board with
connecting leads of minimal length. The protector should
be fused and is suitable for attachment to a 35 mm
top hat DIN rail. The diagrams below illustrate how to wire
the appropriate ESP protector according to your chosen
electrical system.
TN-C earthing system
TN-S earthing system
TT earthing system
Accessories
Weatherproof enclosure:
WBX D4
Full product range order codes can be
found on pages 17/8-17/9
IMPORTANT:
The primary purpose of lightning current or equipotential bonding mains Type 1 Surge Protective Devices (SPDs) is to prevent dangerous sparking
caused by flashover to protect against the loss of human life. In order to protect electronic equipment and ensure the continual operation of systems, transient
overvoltage mains Type 2 and 3 SPDs such as the ESP M1 Series or ESP D1 Series are further required, typically installed at downstream subdistribution boards
feeding sensitive equipment. IEC/BS EN 62305 refers to the correct application of mains Type 1, 2 and 3 SPDs as a coordinated set. For further information,
please refer to the Furse Guide to BS EN 62305 Protection against Lightning.
Application
–– Use on single phase mains supplies and power distribution
systems for protection against partial direct or indirect
lightning strikes
–– ESP 240/I/XXX versions for use with Class I or II LPS
–– ESP 240/III/XXX versions for use with Class III or IV LPS;
or exposed overhead single phase power lines where
no LPS is fitted
–– ESP 240/X/TNS versions also cover TN-C-S
earthing systems
Features & benefits
–– Enhanced protection (to IEC/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
–– Compact, space saving design
Features & benefits
–– The varistor based design eliminates the high follow current
(
I
f
) associated with spark gap based surge protection
–– Indicator shows when the protector requires replacement
–– Remote signal contact can indicate the protector’s status
through interfacing with a building management system