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of all fires are caused by electricity.
According to the international standard IEC 60364-4-42, AFD units are strongly recommended all over Europe as the recognized state-of-the-art technology in specific application fields. With the publishing of the standard DIN VDE 0100-420, the installation of AFD units is now mandatory for many locations in Germany. The 5SM6 AFD units from Siemens are the first arc fault detection device brought to the IEC market that have been providing safe and reliable protection since 2012. The protection devices meet the new standard requirements and form part of Siemens’ comprehensive, end-to-end protection concept. Learn more about these products now!
5SM6 AFD units
About one-third of all fires caused by electricity are attributed to hazardous arcing faults. Particular mention is to be made to serial arcing faults. Residual current protective devices (RCDs) and miniature circuit breakers (MCBs) are not designed to detect and safely disconnect serial arcing faults and do not offer adequate protection in such cases: for example, damaged wire insulations, crushed or broken cables, bent connectors, loose contacts, or even defective electrical devices. The resulting electrical arcing faults can cause cable insulation to ignite, leading to a cable or even building fire.
Siemens closed this safety gap in the IEC market with its 5SM6 AFD unit. As a supplement to MCBs and RCDs, these protection devices address all types of arcing faults, including serial ones. The AFD unit complete the comprehensive SENTRON portfolio by providing a comprehensive all-round protection of electrical installations. They enable the early prevention of various fire hazards, from the electrical line right through to the end device, protecting human lives, buildings, and assets.
The 5SM6 AFD units are based on the by Siemens patented SIARC detection technology.
The result: intelligent fire prevention and thus optimal and standard-compliant comprehensive protection of people and plants.
Quick, standard-compliant, and error-free configuration and planning thanks to professional software, tender specifications, and comprehensive engineering data.
Flexible implementation of needs-based solutions for electrical installers and panel builders, while simultaneously reducing stock keeping needs – thanks to the modular portfolio offering a broad and comprehensive range of standardized accessories.
Installing new equipment or retrofitting existing systems requires little cost and efforts due to the intuitive installation of AFD units on standardized busbars or mouting rails.
The AFD units can be easily purchased either online or locally from electrical wholesalers.
Technical advisory services on products, applications, and standards as well as personal support for everything from design development to network planning and configuration.
Downloads and Support
Here you will find important information, documents, and addresses relating to low voltage power distribution and electrical installation technology.
Whether it’s in public transport applications, the food industry, or in laboratories – you can rely on 5SM6 AFD units. Learn more and convince yourself.
Expanding the electrical systems in the subway stations by adding 5SM6 AFD units
Preventive protection from fires caused by electrical faults
Enhanced safety for passengers and subway personnel
High mechanical strain on gates, doors, and the associated electronics
Reliable detection of arcing faults
AFD units and RCBOs protect cold-storage and freezing rooms in the food industry
5SM6 AFD units protect employees and sensitive laboratory equipment
Previously undetected safety gap closed
Reliable detection of serial arcing faults at socket outlets
Order your AFD units
With 5SM6 AFD units, you greatly increase the level of protection for people, investments and systems. You benefit from a reliable technology that, since coming to market, has already been proven in numerous areas of application, including schools, churches, laboratories, and infrastructure systems.