S-ARC1 B32 Arc Fault Detection Device (AFDD) with MCB – 1P+N – B – 32 A – 6 kA

Why Choose the ABB S-ARC1 B32 Arc Fault Detection Device?

The ABB S-ARC1 B32 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, it provides an additional level of circuit protection for residential and commercial electrical installations.

With a rated current of 32 A, a B tripping characteristic and a rated operational voltage of 230–240 V AC, the S-ARC1 B32 is designed for 1P+N single-phase circuits. Its 6 kA short-circuit breaking capacity and compact two-module construction make it suitable for final circuits requiring combined arc fault, overload and short-circuit protection.

Key Advantages

• Combines arc fault detection and MCB protection in one compact device.
• 32 A rated current with B 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.
• Supports rigid and flexible conductor connections for installation flexibility.
• High mechanical endurance supports dependable long-term operation.
• Compact two-module design helps conserve distribution board space.

Key Features

• ABB S-ARC1 arc fault detection device series.
• 32 A rated current.
• B tripping characteristic.
• 1P+N configuration with one protected pole.
• 230–240 V AC rated operational voltage.
• 6 kA short-circuit breaking capacity.
• 500 V rated insulation voltage.
• 4 kV rated impulse withstand voltage.
• Protection against earth, parallel and series arc faults.
• Integrated thermal-magnetic MCB functionality.
• Mechanical endurance of 20,000 cycles.
• Orange RAL 2004 toggle actuator, sealable in ON and OFF positions.
• Busbar connection capacity up to 10 mm².
• Rigid conductor capacity from 1–25 mm².
• Flexible conductor capacity from 1–16 mm².
• DIN rail mounting with screw terminals.
• Compact two-module construction.

Enhanced Arc Fault and Overcurrent Protection

Arc fault detection devices monitor electrical circuits for characteristic conditions associated with potentially dangerous electrical arcing. The ABB S-ARC1 is designed to protect 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 S-ARC1 range is designed for residential and commercial applications where enhanced protection of single-phase final circuits is required.

Typical Applications

• Residential electrical distribution boards.
• Commercial electrical distribution systems.
• Single-phase final circuits requiring enhanced arc fault protection.
• Circuits protected at 32 A requiring a B tripping characteristic.
• Compatible general-purpose and higher-current final circuits.
• Installations where enhanced protection against electrically initiated fires is required.
• Installations requiring combined arc fault, overload and short-circuit protection.