DEHN launches DC switching device DCD

June 2015 Security Services & Risk Management, IT infrastructure, Products

Lightning and surge protection expert, Dehn Africa, has launched DEHNguard SE DC, a powerful DC switching device DCD that ensures safe operation. The modular DEHNguardSE DC type two surge arrester is designed in such a way that the protective device is safely disconnected in case of overload, thus preventing DC switching arcs and fire damage.

Depending on the voltage level, DEHNguard SE DC can even be used without an additional backup fuse in case of direct currents up to 300 A. It is ideally suited for use in safety lighting systems, emergency power supply systems, DC systems for direct supply of DC drives, control circuits, and any kind of battery-operated supply systems.

The DEHNguard SE DC product line has been designed for DC applications, eliminating the potential safety risk which occurs if conventional AC SPDs are used in DC systems.

The arrester provides a high degree of safety and comfort, thanks to its modular design, and incorporates the unique vibration-proof module locking system of the latest Red/Line design.

The mechanical operating state/fault indication of DEHNguard immediately indicates the state of the device. It is combined with the proven thermal disconnector for varistors which is connected to the additional powerful DC switching device DCD. As is also the case with the DEHNguard product series for AC systems, the protected installation is not disconnected from the supply voltage as soon as the disconnector trips, thus ensuring a reliable power supply to the installation. These new DC arresters were tested based on the requirements for type two arresters according to EN 61643-11 and IEC 61643-1/11.

For more information contact DEHN Protection South Africa, +27 (0)11 704 1487,,

Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Ransomware predictions
Issue 1 2020 , Security Services & Risk Management
As we enter a new decade, Simon Jelley, VP of product management at Veritas, explores how ransomware is likely to continue evolving in the year ahead.

The HR environment in 2020
Issue 1 2020, iFacts , Security Services & Risk Management
As 2020 grabs hold of every one of us with great intent, we need to know what to be aware of when employing people or appointing vendors for our business.

The instruments for investigation
Issue 1 2020, Technews Publishing , Security Services & Risk Management
Regardless of the reason for investigation, the investigation is only as good as the investigators.

Nothing holds Eudricht back
Issue 1 2020, Sensor Security Systems , Security Services & Risk Management
In this personality profile, Eudricht Kotze talks of his journey overcoming adversity in the security industry.

Leaders in risk and security: You have to know it to manage it
Issue 1 2020, Technews Publishing , Security Services & Risk Management
Hi-Tech Security Solutions profiles Nash Lutchman, Senior Vice President and Head of Protection Services at Sibanye-Stillwater.

Drilling deeper into essential building management systems
Issue 1 2020 , Security Services & Risk Management
As the demand for the automation of security and other systems in buildings and large construction sites around the world grows, we are seeing an increase in the demand for building management systems.

From physical security to cybersecurity
Access & Identity Management Handbook 2020, Genetec , Cyber Security, Security Services & Risk Management
Genetec discusses the security-of-security concept as a means to protect cameras, door controllers and other physical security devices and systems against cybercriminal activity.

Biometrics in identity
Access & Identity Management Handbook 2020 , Access Control & Identity Management, Security Services & Risk Management
With multiple identity providers offering to manage digital identities for the general public, the root identity – the single sovereign trusted identity upon which all others are based – must start with government.

Success lies in planning
November 2019, Vox Telecom , Security Services & Risk Management
A safe and smart city will only be successful if it is planned properly, if there is buy-in from all the stakeholders and if it is managed efficiently.

Matching governance to context
November 2019, ContinuitySA , Security Services & Risk Management
When building resilience and planning for business continuity, take proportionality to heart, advises Michael Davies, CEO of ContinuitySA.