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Total Solution to Earthing & Lightning Protection |
9AKK106354A3360
14
Combined Category D, C, B tested protector (to BS EN 61643) suitable for RF
systems (of power up to 150 W) using coaxial cables at frequencies between 50
MHz and 2.7 GHz to provide effective protection without impairing system
performance. For use at boundaries up to LPZ
0
to protect against flashover
(typically the service entrance location) through to LPZ 3 to protect sensitive
electronic equipment.
Specific systems protection
ESP RF Series
Installation
In a building, connect in series with the coaxial cable near
where it enters or leaves the structure, or close to the equipment
being protected. This should be as close as possible to the
system’s earth star point (to enable a good connection to earth).
On a mast, connect in series with the coaxial cable near the
antenna/dish being protected. Install in a radio communications
room, an existing cabinet or a suitable enclosure.
Accessories
ESP RF BK1
Straight mounting plates
ESP RF BK2
90° angled mounting plates
ESP RF BK3
Bulkhead through mounting plate (single)
ESP RF BK4
Bulkhead through mounting plate
(for 4 products)
ESP RF GDT-A
Replacement gas discharge tube
Full product range order codes can be found on pages 17/8-17/9
ESP RF AA1A11 with 7/16 DIN female
connectors installed in series
DIRTY
CLEAN
From line
Earth
To equipment
ESP RF 111A11 with N female connectors installed
in series
DIRTY
CLEAN
From line
To equipment
Earth
ESP RF 441A11 with BNC female connectors
installed in series
DIRTY
CLEAN
From line
Earth
To equipment
Features & benefits
–– Very low let-through voltage (enhanced protection to
IEC/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
–– Superior transient protection to both Gas Discharge Tube
(GDT) and Quarter Wave Stub (QWS) based protectors
–– Very low attenuation and near unity VSWR over a wide
range of frequencies ensure the protectors do not impair
system performance
–– Wide bandwidth means a single product is suitable for a
range of applications
–– Available with N, 7/16 DIN and BNC connectors
–– Easily mounted and earthed via fixtures on the base
of the unit that accept M3 and M5 screws or via
mounting brackets
–– Additional mounting plates give increased flexibility
–– Robust white bronze plated aluminium housing (silver
plate option)
Application
Use on coaxial cables to protect RF transmitter and receiver
systems, including electronics located at the antenna
or dish. Typical examples include cell sites, military
communications, satellite earth stations, pager systems
and emergency services communications systems.
NOTE:
The high level of protection offered by these units comes from the addition of a high pass filter circuit which gives a very low letthrough voltage. It should be
noted that due to this high pass filter circuit no DC power can pass along the transmission line. This is referred to as “DC blocked”. Protectors with other
connectors are available. For RF applications where DC power is present on the coaxial cable, use the alternative RF protectors. The ESP CCTV/B and ESP
CCTV/T are suitable for use on coaxial (or twisted pair) CCTV lines. For coaxial CATV lines, use the ESP CATV/F.