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World's narrowest arc fault detection device with integrated line protection

Arc fault detection device (AFDD) 5SV6

With the 5SV6 arc fault detection device, Siemens has already launched the third generation for preventive fire protection in the IEC market. Unlike line protection and residual current circuit breakers, the device detects not only parallel but also serial arcing faults. Serial arcing faults are one of the most frequent causes of electrical fires. They can arise, for example, due to damaged cable insulation, crushed cabling, bent connectors or loose contacts in the electrical installation. They cause rapid overheating, which can ultimately spark a cable fire, consequently leading to a building fire. Arc fault detection devices thus significantly increase the safety of people and assets.
The arc fault detection devices are part of the integrated Sentron portfolio from Siemens. The product series encompasses the 5SM6 arc fault detection device in two widths for mounting on miniature circuit breakers or residual current breakers with overload, as well as the new 5SV6 combined version.
The technical basis of the arc fault detection devices is the SIARC patented detection technology from Siemens: The devices continuously measure the intensity and duration of episodes of high-frequency (HF) noise associated with the voltage and current and the gaps between them. An integrated microcontroller analyzes these signals and triggers the disconnection of the connected circuit within fractions of a second if anything unusual is detected. The arc fault detection devices are able to distinguish harmless causes of faults, such as can arise when operating power drills or vacuum cleaners, from hazardous arcs.

For further information on Division Energy Management, please see
For further information on arc fault detection devices (AFDD), please see
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Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for 170 years. The company is active around the globe, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is a leading supplier of efficient power generation and power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2017, which ended on September 30, 2017, Siemens generated revenue of €83.0 billion and net income of €6.2 billion. At the end of September 2017, the company had around 377,000 employees worldwide. Further information is available on the Internet at
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Heidi Fleissner

Siemens AG

Siemensstr. 10
93055 Regensburg

+49 (941) 790-2212