Why Choose the ABB S-ARC1 M B25 Arc Fault Detection Device?
The ABB S-ARC1 M B25 is a compact arc fault detection device (AFDD) with integrated miniature circuit breaker (MCB) designed to protect electrical circuits against dangerous arc faults, overloads and short circuits. As part of the ABB S-ARC1 M series, it combines arc fault detection and overcurrent protection in a space-saving two-module device for low-voltage electrical installations.
The S-ARC1 M B25 continuously monitors the electrical circuit for characteristics associated with dangerous arc faults and disconnects the affected circuit when an arc fault is detected. Its integrated MCB also provides conventional overload and short-circuit protection, reducing the number of separate protective devices required within the distribution board.
With a rated current of 25 A, a B tripping characteristic and a 10 kA rated short-circuit breaking capacity, the S-ARC1 M B25 is suitable for demanding residential, commercial and building electrical installations. It operates at 230–240 V AC and is designed for standard 35 mm DIN rail installation.
Key Advantages
- Combines arc fault detection and miniature circuit breaker protection in one device.
- 25 A rated current with B tripping characteristic.
- 10 kA short-circuit breaking capacity for enhanced circuit protection.
- Detects dangerous electrical arc faults that can increase the risk of electrically caused fires.
- Provides integrated protection against overloads and short circuits.
- Compact two-module 1P+N design helps conserve distribution-board space.
- DIN rail mounting provides straightforward integration into electrical distribution systems.
Key Features
- ABB S-ARC1 M series AFDD with integrated MCB.
- 25 A rated current.
- B tripping characteristic.
- 10 kA rated short-circuit breaking capacity.
- 230–240 V AC rated voltage.
- 50 / 60 Hz rated frequency.
- 1P+N configuration.
- Two-module width for compact distribution-board installation.
- Contact position indication for clear device status.
- Compatible with the ABB System pro M compact range and accessories.
Reliable Arc Fault and Circuit Protection
Arc faults can occur as a result of damaged cables, loose connections, deteriorated insulation or other electrical installation faults. Conventional overcurrent protection may not detect every dangerous arcing condition, so an AFDD monitors the circuit for electrical signatures associated with hazardous arcs and disconnects the supply when necessary.
The ABB S-ARC1 M series combines this arc fault detection technology with an integrated miniature circuit breaker. The S-ARC1 M B25 therefore provides arc fault, overload and short-circuit protection within a compact two-module enclosure, helping simplify the design of modern electrical distribution boards.
Typical Applications
- Residential electrical distribution boards.
- Commercial buildings and offices.
- Electrical circuits requiring enhanced protection against arc faults.
- Circuits supplying sockets and fixed electrical equipment.
- Buildings containing valuable or difficult-to-replace assets.
- Low-voltage distribution systems requiring 25 A B-curve circuit protection.
