Why Choose the ABB DS203NC C16 A100 RCBO?
The ABB 2CSR256140R2164, also identified as the DS203NC C16 A100, is a high quality residual current circuit breaker with overcurrent protection (RCBO) designed for three-phase electrical installations. Combining residual current, overload and short-circuit protection in a single compact device, it provides comprehensive protection for electrical systems while reducing the space required within distribution boards.
Part of ABB's proven System pro M compact DS203NC series, this RCBO features a 3P+N configuration housed within four DIN modules. It protects all three phase conductors against overload and short-circuit faults while monitoring earth leakage across the complete circuit, making it suitable for commercial, industrial and infrastructure applications.
The DS203NC C16 A100 has a rated current of 16 A, a C tripping characteristic and a rated residual operating current of 100 mA. Its Type A residual current detection responds to sinusoidal AC and pulsating DC residual currents, while operating from a standard 400–415 V AC three-phase supply.
Key Advantages
- Combines earth leakage, overload and short-circuit protection in one compact device.
- 16 A rated current suitable for three-phase distribution circuits.
- 100 mA residual current sensitivity.
- Type A residual current detection for AC and pulsating DC leakage currents.
- C-curve tripping characteristic for circuits with moderate inrush currents.
- Compact four-module design saves valuable DIN rail space.
- High electrical and mechanical endurance.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB DS203NC RCBO series.
- 3P+N configuration.
- 16 A rated current.
- 100 mA rated residual current.
- Type A residual current protection.
- C tripping characteristic.
- 400–415 V AC rated voltage.
- 6 kA rated short-circuit capacity.
- 10 kA ultimate breaking capacity.
- DIN rail mounting.
- Neutral terminal positioned on the right.
- Manufactured to IEC/EN 61009 standards.
Comprehensive Protection for Three-Phase Installations
The ABB DS203NC C16 A100 continuously monitors current flowing through the protected conductors while providing automatic disconnection in the event of overloads, short circuits or earth leakage faults. This integrated protection helps improve electrical safety while protecting valuable equipment and reducing installation complexity.
Its compact four-module construction makes it an excellent choice for modern distribution boards where space efficiency and dependable circuit protection are equally important.
Typical Applications
- Commercial electrical distribution.
- Industrial machinery supplies.
- Three-phase socket outlets.
- Control panels and switchboards.
- Infrastructure projects.
- Renewable energy systems.
- Workshop electrical installations.
- Distribution boards requiring combined RCBO protection.
