New Products

BLITZDUCTOR ® VT KKS
Combined arrester for cathodic corrosion protection systems
Compact DIN Rail Mounted SPDs
• Extremely efficient due to high discharge capacity
• Easy maintenance due to remote signalling
contact
• Resistant to permanent interference voltages
up to 65 V a.c.
Arrester for protecting active cathodic corrosion protection systems.
Integrated floating remote signalling contact (break contact) for function
monitoring.
The protective circuit and voltage measuring circuit are protected against
surge pulses caused by atmospheric discharges (lightning strikes) or
switching operations (in power supply lines).
The devices are designed for permanent interference voltages up to 65 V
a.c. between pipelines and earth. If this value is exceeded, the relevant
regulations for protection against electric shock have to be observed and
further measures have to be taken.
The devices may be overloaded by overcurrents caused by mains faults
(short circuits or earth faults). For this reason, they should be installed
into a separate metal enclosure or a prewired terminal unit (ITAK) should
be used. The integrated remote signalling contact indicates thermal overload
of the discharge paths.
In cathodic corrosion protection systems
arresters for protective circuits
and voltage measuring circuits are
often used at the same time. The different
colours of the arresters, i.e. yellow
for voltage measuring circuits and red
for protective circuits, allow easy identification.
BVT KKS arrester family
The installation of arresters into a separate
metal enclosure has proven very
effective in practice as the enclosure
provides additional protection from
overload caused by short circuits. With
ITAK, DEHN provides adequate
prewired units for cathodic corrosion
protection systems. The ITAK serial
number serves as order number.
Sample system with BVT
arresters for corrosion protection
systems and EXFS 100
isolating spark gap for bridging
isolated pipe sections.
ITAK, serial No. 4305
226 www.dehn.de