![]() |
![]() |
|
Safety concepts
Surge protection for the industry

Industrial automation is a standard in most companies. A breakdown of the production can lead a company to its financial ruin and insurances against operational breakdowns are often not existing.
Increasing operational safety
In order to increase operational safety, lines between buildings have to be localised and protected first. The drawing shows an example of the power supply and information transmission by Profibus and Industrial Ethernet. For the power supply, the potential short-circuit currents have to be especially taken into consideration. The coordinated lightning current arrester DEHNbloc® Maxi
safely discharges prospective short-circuit currents up to 50 kA and protects the backup fuses against damage at the same time. BLITZDUCTOR® XT
protects IT lines even in case of direct lightning strokes.
Forming equipotential bonding areas
PLC or AS Interface, sensors / actuators or Ex barriers - to all applies that upcoming surges have to be compensated in system engineering and on all connected lines - an "equipotenional bonding area" comes into existence.
SPDs like VNH
, SPS-Protector
and DEHNrail
fulfil this function on the power supply side. For IT lines, e.g. DEHNconnect
, DEHNpatch
, AS Interface Surge Protection Module
or Fine Protection Adapter
FS
can compensate surges within microseconds.
Thus, in connection with an intermeshed equipotentional bonding and earthing system, breakdowns due to surges and consequently operational interruptions can be avoided. An investment, which can easily pay off.