Electrical Power & Protection


Dehn Blitzductor surge protection for maximum system availability

January 2016 Electrical Power & Protection

The surge arresters of the Dehn Blitzductor SP series are pluggable multi-pole DIN rail mounted arresters with integrated earthing. They can be universally used for protecting measuring and control circuits, bus systems or telecommunication infrastructure.

The arresters combine a permanently high impulse current discharge capacity up to 20 kA (8/20 µs) with an extremely low voltage protection level, thus ensuring effective protection of terminal equipment even in case of interference caused by impulse currents and surges resulting from switching operations. The arresters provide protection against vibration effects and shock up to 30 times the acceleration of gravity.

They ensure maximum system availability since the modules can be replaced without signal interruption (hot-swappable). The arrester consists of a protection module and a base part. The function-optimised design ensures both fast and easy replacement and maintenance of protection modules which house all relevant protection components. Though mechanically strong in its function, each SPD module can easily be removed by squeezing the side tabs to unlock the module. Insertion is easy and secure when the mechanical “click” is heard and felt. A mechanical reverse polarity protection ensures that a module is always installed in the correct position.

Two universal base parts are optionally available with or without signal disconnection. The Blitzductor SP arresters require minimum space, with four single lines or two pairs only covering a width of 12 millimetres. For DIN rail mounting purposes, lines of a pair belonging to each other are connected on top of one another (vertically). The universal base part not only minimises storage requirements but also eases wiring and maintenance operations. Additionally, the base part metallically bonds the arrester module to the rail allowing for easy grounding of the arrester.

The products were tested in third-party laboratories according to application and country-specific requirements and standards. For example they can be applied with SIL ratings for use in systems requiring high reliability and safety. They are also UL 497 listed.

For more information contact Alexis Barwise, Dehn Africa, +27 (0)11 704 1487, alexis.barwise@dehn-africa.com, www.dehn-africa.com



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Enabling IIoT connectivity for virtual power plants
December 2019, RJ Connect , Electrical Power & Protection
The power grid has seen many changes that have enabled the integration of power from distributed energy sources (DERs).

Read more...
DIN rail power supply for demanding applications
December 2019, ElectroMechanica , Electrical Power & Protection
Automated production systems require power supplies with high stability and safety protection. DIN rail power supply series for such demanding applications are available from Delta Electronics, distributed ...

Read more...
Dry-type transformers go mainstream
December 2019 , Electrical Power & Protection
The uptake of dry-type transformers in South Africa is now well beyond ‘niche’ applications, with local specialist Trafo Power Solutions installing a range of sizes across various sectors. “In recent ...

Read more...
Robust embedded power supply series
December 2019, RS Components SA , Electrical Power & Protection
RS Components (RS) has announced the availability of a new series of AC-DC embedded switch-mode power supplies (SMPS) from TDK-Lambda. The cost-effective RWS-B series of AC-DC industrial power supplies ...

Read more...
Ultra-compact soft starter with protection
December 2019, Vepac Electronics , Electrical Power & Protection
The Tele Christian P4.0/RL/TP/IC electronic soft starter is, with all of its integrated functionality, designed for ultra-compact installation. It helps to reduce wiring material, installation time and ...

Read more...
DEHN Africa provides 3D laser scanning for lightning protection design
December 2019, DEHN Protection South Africa , News
3D laser scanning delivers many benefits for industrial and engineering projects, providing precise and reliable data which allows for improved planning and scheduling. Without physically touching what ...

Read more...
Latest power monitoring device
November 2019, ElectroMechanica , Electrical Power & Protection
A new panel-mounted power monitoring device (PMD) from Socomec has been launched locally by ElectroMechanica (EM). The Socomec DIRIS A-40 has been designed for measuring, monitoring, and reporting electrical ...

Read more...
WEG IE3 compliant motor control and protection
October 2019, Zest WEG Group , Electrical Power & Protection
The increased move towards the use of IE3 electric motors has made it increasingly important that the most appropriate starting method be selected to ensure optimum performance. With this move it is essential ...

Read more...
Electronic monitoring devices from EM
October 2019, ElectroMechanica , Electrical Power & Protection
A comprehensive range of electronic monitoring and timing devices in different formats for ease of use and retrofit purposes is available from ElectroMechanica (EM). The ElectroDev units are suited to ...

Read more...
Integrated earth leakage protection
October 2019, Schneider Electric South Africa , Electrical Power & Protection
Schneider Electric has announced the introduction of integrated earth leakage protection for its Compact NSX and NSXm moulded circuit breaker ranges. “The award-winning Compact NSX moulded case circuit ...

Read more...