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DEHNguard ® S / DEHNguard ® S FM
Pluggable single-pole surge arrester
For protecting low-voltage consumer’s installations against surges. For
installation in conformity with the lightning protection zones concept at
the boundaries from 0 B – 1 and higher.
Type 2 Surge Arresters
• Multi-purpose surge arrester consisting of a
base element and plug-in protection module
• High discharge capacity due to heavy-duty zinc
oxide varistor
• High reliability due to "Thermo Dynamic
Control" SPD monitoring device
• Energy coordination with other arresters of the
Red/Line product family
• Operating state/fault indication by indicator
flag in the inspection window
• Narrow (modular) design acc. to DIN 43880
• Multifunctional terminals for connecting conductors
and busbars
• Easy replacement of protection modules due to
module locking system with module release
button
• Vibration and shock-tested according to
EN 60068-2
Surge Arresters Type 2
DEHNguard S ...: Pluggable surge arrester consisting of a base part and plug-in protection module
DEHNguard S ... FM: With remote signalling contact for monitoring device (floating changeover contact)
The single-pole devices of the DEHNguard S product family distinguish
themselves thanks to their universal features. Be it as a single device or
in combination with other devices – DEHNguard S surge arresters always
provide adequate protection. Their modern Red/Line family design and
universal features ensure safety and user-friendliness. The module release
button and the proven "Thermo Dynamic Control" SPD monitoring
device with dual tripping performance are key elements of the devices of
the DEHNguard S series.
Experience of decades in the world market of surge arresters has further
improved the latest DEHNguard generation compared to its predecessor.
The unique module locking system fixes the protection module to the
base part. Neither vibration during transport nor the enormous electromagnetic
forces of discharge can loosen this connection. Nevertheless,
the modules can be easily replaced without tools by simply pressing the
user-friendly module release button of the protection modules.
As with all DEHNguard surge arresters, the user of DEHNguard S can rely
on the dual "Thermo Dynamic Control" SPD monitoring device. It
ensures a maximum degree of safety, even under harsh environmental
conditions. The green and red indicator flags shows the operating state
of DEHNguard S surge arresters. Apart from this standard visual indication,
DEHNguard S ... FM features a three-pole remote signalling terminal.
With its floating changeover contact, the remote signal can be used
as a break or make contact according to the particular circuit concept.
The multifunctional terminals of DEHNguard S surge arresters are suitable
for connecting conductors and busbars, allowing easy wiring with
other DIN rail mounted devices. Series connection according to IEC
60364-5-53 for optimal protection is therefore possible for a wide range
of applications.
Every base part and protection module is mechanically coded to ensure
against installing an incorrect replacement module.
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