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2CSR253101R1204 ABB DS203 A-C20/0.03 RCBO 3P Type A C Curve 20A 30mA 6kA
ABB DS203 A-C20/0.03 is a 3-pole Type A RCBO with C tripping characteristic, 20 A rated current, 30 mA residual current sensitivity and 6 kA short-circuit breaking capacity for commercial and industrial circuit protection.
£230.17
Why Choose the ABB DS203 A-C20/0.03 RCBO?
The ABB DS203 A-C20/0.03 is a 3-pole residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and earth fault currents. As part of the ABB DS200 RCBO series, it integrates residual current and overcurrent protection in a single DIN rail-mounted device for commercial and industrial electrical installations.
This Type A RCBO is designed to detect sinusoidal alternating residual currents and pulsating DC residual currents, providing broader residual current protection than an AC Type device. Its C tripping characteristic is suited to general-purpose circuits and equipment with moderate starting currents.
With a rated current of 20 A, a rated residual operating current of 30 mA and a rated short-circuit breaking capacity of 6 kA, the DS203 A-C20/0.03 provides dependable protection for three-phase circuits. Its integrated design is well suited to distribution boards, control panels and machinery circuits requiring Type A residual current protection.
Key Advantages
- Combined residual current, overload and short-circuit protection in one device.
- 20 A rated current for protected three-phase circuits.
- 30 mA residual current sensitivity for additional protection against electric shock.
- Type A residual current protection for sinusoidal AC and pulsating DC residual currents.
- C tripping characteristic suitable for circuits with moderate starting currents.
- 6 kA rated short-circuit breaking capacity.
- Integrated RCBO construction helps simplify distribution-board installation and wiring.
Key Features
- ABB DS200 RCBO series.
- 3-pole configuration.
- 20 A rated current.
- 30 mA rated residual operating current.
- Type A residual current characteristic.
- C overcurrent tripping characteristic.
- 6 kA short-circuit breaking capacity.
- Combined residual current and overcurrent protection.
- Integrated test facility for checking residual current operation.
- DIN rail mounting for distribution boards and control panels.
Type A Protection for Three-Phase Circuits
Type A RCBOs are designed to respond to sinusoidal alternating residual currents as well as pulsating DC residual currents. This makes them suitable for circuits supplying equipment containing electronic components that can produce residual current waveforms beyond those covered by AC Type protection.
The DS203 A-C20/0.03 combines Type A residual current detection with a C tripping characteristic for loads with moderate starting currents. Its 30 mA sensitivity provides additional protection against electric shock, while its overcurrent function protects the circuit against overload and short-circuit conditions.
Typical Applications
- Commercial electrical distribution boards.
- Industrial three-phase control circuits.
- Machinery and automation control panels.
- Circuits supplying electronic equipment.
- General-purpose loads with moderate starting currents.
- Installations requiring Type A residual current protection.
- Circuits requiring combined residual current and overcurrent protection.
Technical Specifications
| Series | DS200 |
|---|---|
| ABB order code | 2CSR253101R1204 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3 |
| Rated current | 20 A |
| Rated residual current | 30 mA |
| Residual current type | Type A |
| Tripping characteristic | C |
| Rated voltage | 400 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity | 6 kA |
| Mounting type | DIN rail |
| Standard | IEC/EN 61009-1 |
Frequently Asked Questions
What is the ABB DS203 A-C20/0.03 used for?
It is used to protect three-phase electrical circuits against overloads, short circuits and Type A residual currents in commercial and industrial installations.
What is the rated current of the DS203 A-C20/0.03?
The ABB DS203 A-C20/0.03 has a rated current of 20 A.
What does Type A residual current protection detect?
Type A protection detects sinusoidal alternating residual currents and pulsating DC residual currents, making it suitable for circuits that can include electronic loads.
What does the C characteristic mean?
The C tripping characteristic is suited to general-purpose circuits and equipment with moderate starting currents.
What is the breaking capacity of the ABB DS203 A-C20/0.03?
The DS203 A-C20/0.03 has a rated short-circuit breaking capacity of 6 kA.
Trusted ABB Circuit Protection
ABB DS200 RCBOs combine residual current and overcurrent protection in a practical DIN rail format, providing dependable circuit protection for commercial and industrial electrical installations.
