Arc Fault Detection Devices

Why SENTRON AFDD?

The compact SENTRON arc fault detection device detects any type of arc fault and disconnects the circuit immediately — essential for an all-round protected electrical installation.

SENTRON AFDD is suitable for new buildings and installations, as well as retrofitting and modernizing existing industrial, residential or commercial buildings.

These devices can detect parallel and serial arc faults, interrupt and disconnect circuits and replace existing MCBs or attach to SENTRON MCBs or RCBOs and feature:

Compact design with only one modular width (MW)
50% space savings in the distribution board for new installations
Siemens-patented SIARC technology

Key benefits

Reduce risk of electrical fire

Minimize the risks associated with modern electrical devices and increased current load, including electrical fire, even from minor defects such as damaged wire insulation, crushed cables or bent connectors.

Protect people and assets

Enable early detection of fire hazards, from the electrical line to the end device, and prevent other dangers such as electric shock or electrical system destruction in residential, commercial or industrial settings.

Maximize space savings

Replace existing circuit breakers in older buildings without adding space. AFDD features an integrated miniature circuit breaker (MCB) and has the same width as an MCB for maximum space savings on the distribution board.

Featured capabilities

Prevent electrical fires with patented arc detection

Detect dangerous fault arcs with patented SIARC technology. Developed by Siemens to filter and analyze signals with intelligent software, it detects unusual activity and disconnects the circuit in fractions of a second.

Achieve space savings with compact design

Reduce panel space while maintaining comprehensive protection. The integrated AFDD/MCB design is easily installable in new buildings and features straight-forward retrofitting in existing buildings.

Support standard-compliance and portfolio integration

Meet IEC 60364-4-42 safety guidance with devices that integrate seamlessly across the SENTRON portfolio. Combine AFDDs with MCBs or RCBOs, including SENTRON 5SV6 & 5SM6, to deliver standard-compliant, coordinated protection.