S-ARC1 C40 Arc Fault Detection Device (AFDD) with MCB – 1P+N – C – 40 A – 6 kA

Why Choose the ABB S-ARC1 C40 Arc Fault Detection Device?

The ABB S-ARC1 C40 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 is designed to protect 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 is not designed to identify, the device provides an additional level of protection against electrical faults associated with damaged conductors, deteriorated insulation and poor connections.

With a rated current of 40 A, a C tripping characteristic and a rated operational voltage of 230–240 V AC, the S-ARC1 C40 is designed for 1P+N single-phase circuits. It provides a 6 kA rated service short-circuit breaking capacity and a 7.5 kA rated ultimate short-circuit breaking capacity, making it suitable for compatible residential and commercial final circuits.

Key Advantages

• Combines arc fault detection and MCB protection in one compact device.
• 40 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 rated service short-circuit breaking capacity.
• 7.5 kA rated ultimate short-circuit breaking capacity.
• 1P+N configuration with one protected pole.
• High electrical and mechanical endurance supports dependable operation.
• Compact two-module design helps conserve distribution board space.

Key Features

• ABB S-ARC1 arc fault detection device series.
• 40 A rated current.
• C tripping characteristic.
• 1P+N configuration with one protected pole.
• 230–240 V AC rated operational voltage.
• 6 kA rated service short-circuit breaking capacity.
• 7.5 kA rated ultimate short-circuit breaking capacity.
• Integrated arc fault detection and MCB functionality.
• 2.5 kV dielectric test voltage.
• Energy limiting class 3.
• Electrical endurance of 10,000 cycles.
• Mechanical endurance of 20,000 cycles.
• Red ON / green OFF contact position indication.
• Flexible top or bottom power supply connection.
• DIN rail mounting with screw terminals.
• 2.8 N·m terminal tightening torque.
• Compact two-module construction.

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 protect end-user single-phase circuits against earth, parallel and series arc faults, while its integrated miniature circuit breaker provides thermal-magnetic protection against overloads and short-circuit currents.

Combining AFDD and MCB functionality within a compact two-module 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 C40 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 40 A requiring a C tripping characteristic.
• Compatible higher-current 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.