Why Choose the ABB DS-ARC1 M B20 A30 Arc Fault Detection Device?
The ABB DS-ARC1 M B20 A30 is a compact arc fault detection device (AFDD) with integrated RCBO protection designed to provide comprehensive protection for single-phase electrical circuits. As part of the ABB DS-ARC1 M series, it combines arc fault detection, residual current protection, overload protection and short-circuit protection within a single three-module DIN rail device.
The DS-ARC1 M is designed to protect against series, parallel and earth arc faults while its integrated Type A RCBO provides protection against residual currents, overloads and short circuits. It also provides protection against overvoltage conditions, bringing multiple electrical protection functions together within one compact device for modern distribution systems.
With a rated current of 20 A, a B tripping characteristic, 30 mA Type A residual current sensitivity and a rated operational voltage of 230–240 V AC, the DS-ARC1 M B20 A30 provides enhanced protection for 1P+N circuits. The M version offers a 10 kA rated ultimate short-circuit breaking capacity, making it suitable for installations requiring a higher breaking capacity than the standard DS-ARC1 range.
Key Advantages
- Combines AFDD and RCBO protection in one compact device.
- 20 A rated current with B tripping characteristic.
- 30 mA Type A residual current protection.
- Provides protection against series, parallel and earth arc faults, residual currents, overloads and short circuits.
- Provides protection against overvoltage conditions.
- 10 kA rated ultimate short-circuit breaking capacity.
- Continuous internal self-test supports dependable AFDD operation.
- Supply connection can be made from either the top or bottom for installation flexibility.
- Compact three-module DIN rail design simplifies installation in distribution boards.
Key Features
- ABB DS-ARC1 M arc fault detection device series.
- 20 A rated current.
- B tripping characteristic.
- 30 mA rated residual current.
- Type A residual current protection.
- 1P+N configuration with one protected pole.
- 230–240 V AC rated operational voltage.
- 50–60 Hz rated frequency.
- 7.5 kA rated service short-circuit breaking capacity.
- 10 kA rated ultimate short-circuit breaking capacity.
- 500 V rated insulation voltage.
- 4 kV rated impulse withstand voltage.
- LED indication supports straightforward network troubleshooting.
- Dedicated test functions for AFDD and residual current protection.
- Continuous internal self-test functionality.
- Compatible with ABB System pro M compact accessories.
- DIN rail mounting with screw terminals.
Comprehensive Electrical Circuit Protection
Arc fault detection devices monitor electrical circuits for conditions associated with potentially dangerous electrical arcs. The ABB DS-ARC1 M is designed to protect against series, parallel and earth arc faults and combines this functionality with Type A residual current and thermal-magnetic overcurrent protection, enabling a single device to address multiple electrical fault conditions.
The DS-ARC1 M series provides a higher short-circuit breaking capacity than the standard DS-ARC1 range while retaining a compact three-module format. LED troubleshooting indication, dedicated AFDD and residual current test functions, continuous internal self-testing, flexible top or bottom supply connection and compatibility with ABB System pro M compact accessories support straightforward installation and maintenance.
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 B tripping characteristic.
- Installations requiring a 10 kA ultimate short-circuit breaking capacity.
- Circuits requiring combined residual current and overcurrent protection.
