Arc fault detection device with overcurrent and residual current protection 1P+N 6kA B 10A ARF910D

Arc Fault Detector – Installation Protection and User Safety

This arc fault detector with overcurrent and residual current protection is a key element ensuring safety in electrical installations. The device combines short-circuit, overload protection, and detection of dangerous electric arcs that can lead to fires. This is particularly important in residential, commercial, and public buildings.

The detector is designed for mounting in electrical distribution boards and provides comprehensive circuit protection. Its compact size (3 modules wide) makes installation easy even in limited spaces. The device complies with the latest safety standards, guaranteeing reliable operation and long-term use.

Functionality and technical parameters

The arc fault detector is characterized by a rated current of 10A and a rated voltage of 230V. It has a B tripping characteristic, which means it reacts quickly to sudden current increases while tolerating short-term peak loads – which is important when starting devices with induction motors. The rated residual current is 0.03A, and the sensitivity is class A, providing effective protection against electric shock.

The built-in arc fault detection device (AFDD) is an advanced function that detects the formation of electric arcs – often invisible to the naked eye – which can be the cause of fires. The rated short-circuit breaking capacity is 6kA, ensuring effective disconnection of the circuit in the event of a short circuit. Energy limitation class 3 and surge category III indicate high resistance to interference and overvoltages in the electrical network.

Additionally, the detector has a disconnectable neutral pole (N) simultaneously with the phase, which increases safety and facilitates diagnostics of any problems in the installation. Protection degree IP2X provides basic protection against accidental contact and ingress of solid objects.