Specifications

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RF SOLUTION-CITEL
AC power Surge Protectors
CITEL proposes a line of surge protectors for the single-
phase AC network access of sensitive terminal equipment.
These products, named
<< Parasurge >> , are available in
various formats :
󳀏Plug-in outlet units (Parasurge, PBF)
󳀏AC/telecom combined outlet units (Parasurge)
󳀏Multi-outlet units (Parasurge Multi)
󳀏Hard-wired units (MSB, KKM)
<<
Terminal >> Surge Protectors
In order to ensure an efficient protection against surge voltages
of terminals connected to AC network, it is recommended to
install, close to sensitive equipment, a extra surge protector, in
addition of the surge protector installed at the entrance of the
installation. This approach is more necessary as the equipment
to protect is far away of the primary surge protector (> 30 m).
These surge protectors are compact, easy to install and
protect an equipment (Parasurge) or a set of equipment
(Parasurge Multi). They provide an adapted protection level
(Up = 1.5 kV) and relevant discharge currents (In=2.5 kA and
Imax=5 kA).
Choosing a secondary surge protector
A wide choice of formats is available to provide a solution for
any configuration.
The choice will be based on installation constraints :
󳀏Simple, rapid installation 󳀏Single/multiple outlet boxes
󳀏Telephone/Data equipment 󳀏Combined units
󳀏Fixed, built-in installation 󳀏Hard-wired units
The outlet-based versions are generally available in French
and German versions.
Installation
Theses surge protectors are used as secondary surge
protection, in association with a primary surge protection (i.e.
DS series) installed in the main electrical switch board. The
Parasurge protectors are designed to operate in coordination
withe the primary surge protectors.
They are tested following Class II or Class III Test of the IEC
61643-1 standard.
These units are installed close by the sensitive equipment,
providing by this way, a greater efficiency.
The
<< Outlet >> or << Multi-outlet >> configurations of the
Parasurge series allow a fast and error-free installation by the
end user.
Note: The wall outlet, receiving the Parasurge unit, must be
connected to the earthing network by the dedicated wire.
Operation
These surge protectors are based on an hybrid association of
gas tube and varistors in order to obtain a relevant discharge
current, in a compact size, adapted to a secondary cost
effective surge protection.
Moreover, they are equipped, in compliance with IEC 61643-
1 standard , with internal thermal safety which will disconnect
the unit from AC network in case of end of life. The operating
status of the Parasurge is given by light indicator.
●
<< 3-stage >> Diagram
The MSB-HF and PBF-HF versions use a multi-stage diagram
for enhanced efficiency.
With these three protection stages, each having a distinct
role, the surge protectors combine three functions normally
provided by separate devices.
A - Input stage based on a gas discharge tube and varistors
for a high discharge current capacity.
B - Intermediate stage consisting of an RFI filter to reject RF
interference and coordinate the input and output stages.
C - Output stage based on varistors for a very short response
time and low residual voltage.
This version is recommended for the protection of especially
sensitive equipment.