S-ARC1 C20 Arc Fault Detection Device (AFDD) with MCB – 1P+N – C – 20 A – 6 kA

Why Choose the ABB S-ARC1 C20 Arc Fault Detection Device?

The ABB S-ARC1 C20 is a compact arc fault detection device (AFDD) with integrated miniature circuit breaker (MCB) designed to provide enhanced protection for single-phase final circuits. As part of the ABB S-ARC1 series, it combines arc fault detection with thermal-magnetic overload and short-circuit protection within a single two-module DIN rail device.

The S-ARC1 protects end-user circuits against earth, parallel and series arc faults as well as conventional overloads and short-circuit currents. By detecting potentially hazardous electrical arcing that conventional MCB protection alone may not identify, the device provides an additional level of protection against faults associated with damaged conductors, deteriorated insulation and poor electrical connections.

With a rated current of 20 A, a C tripping characteristic and a 6 kA short-circuit breaking capacity, the S-ARC1 C20 is designed for 1P+N single-phase circuits. Its C characteristic makes it suitable for compatible circuits with moderate starting or inrush currents, while its compact construction supports space-efficient installation in residential and commercial distribution boards.

Key Advantages

• Combines arc fault detection and MCB protection in one compact device.
• 20 A rated current with C tripping characteristic.
• Protects against earth, parallel and series arc faults.
• Integrated thermal-magnetic protection against overloads and short circuits.
• 6 kA short-circuit breaking capacity.
• 1P+N configuration for single-phase final circuits.
• C characteristic accommodates compatible loads with moderate starting or inrush currents.
• Integrated AFDD functionality provides enhanced protection against electrically initiated fires.
• Compact two-module design helps conserve distribution board space.

Key Features

• ABB S-ARC1 arc fault detection device series.
• 20 A rated current.
• C tripping characteristic.
• 1P+N configuration.
• 6 kA short-circuit breaking capacity.
• Detection of earth arc faults.
• Detection of parallel arc faults.
• Detection of series arc faults.
• Integrated thermal-magnetic MCB functionality.
• Protection against overloads and short-circuit currents.
• Suitable for residential and commercial applications.
• Suitable for compatible circuits with moderate starting or inrush currents.
• DIN rail mounting.
• Screw terminal connections.
• Compact two-module construction.
• Designed in accordance with IEC/EN 62606 and IEC/EN 60898-1.

Enhanced Arc Fault and Overcurrent Protection

Arc fault detection devices monitor electrical circuits for characteristics associated with potentially dangerous electrical arcing. The ABB S-ARC1 is designed to detect earth, parallel and series arc faults and disconnect the affected circuit, while its integrated miniature circuit breaker provides thermal-magnetic protection against overloads and short-circuit currents.

Combining AFDD and MCB functionality within a compact device helps simplify distribution board design while providing protection against electrical faults that conventional MCBs alone are not designed to detect. The C tripping characteristic of the S-ARC1 C20 also makes it suitable for compatible circuits where moderate starting or inrush currents may occur.

Typical Applications

• Residential electrical distribution boards.
• Commercial electrical distribution systems.
• Single-phase final circuits requiring enhanced arc fault protection.
• Circuits protected at 20 A requiring a C tripping characteristic.
• Compatible electrical loads with moderate starting or inrush currents.
• Installations where enhanced protection against electrically initiated fires is required.
• Installations requiring combined arc fault, overload and short-circuit protection.