The world’s smallest AFDD
The new arc fault detection device is super compact making it suitable for both installing in new buildings and retrofitting into existing. At any time, a standard-compliant expansion of the electrical installation to protect against electric fires is possible – easily and without the need for additional space.

Your benefits:

• First arc fault detection device in the IEC market (2012)
• First AFDD with integrated MCB in just one modular width
• 50% space savings during installation
• Siemens-patented SIARC detection technology
• Consisten product portfolio with a high level of variance (300 possible combinations)

 
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 electrial 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 AFDDs (arc fault detection devices). As a supplement to MCBs and RCDs, these protection devices address all types of arcing faults including serial ones. The AFDDs 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.