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2CSR253001R1504 ABB DS203 AC-C50/0.03 RCBO 3P AC Type C 50A 30mA 6kA
ABB DS203 AC-C50/0.03 is a 3-pole AC Type RCBO with C tripping characteristic, 50 A rated current, 30 mA residual current sensitivity, 6 kA breaking capacity and additional terminals for remote tripping.
£260.73
Why Choose the ABB DS203 AC-C50/0.03 RCBO?
The ABB DS203 AC-C50/0.03 is a robust 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 combines a residual current device and miniature circuit breaker in a factory-assembled unit for demanding commercial and industrial electrical installations.
This AC Type RCBO provides protection against sinusoidal alternating earth fault currents, while its C tripping characteristic is suitable for general-purpose circuits and equipment with moderate starting currents. The DS200 range is designed for applications requiring higher rated currents and combines its protective components at the factory to simplify assembly and reduce installation time.
With a rated current of 50 A, a rated residual operating current of 30 mA and a rated short-circuit breaking capacity of 6 kA, the DS203 AC-C50/0.03 provides comprehensive protection for three-phase circuits. This 50 A version is also provided with additional terminals for remote tripping, supporting integration into more advanced electrical protection and control systems.
Key Advantages
- Combined residual current, overload and short-circuit protection in one device.
- 50 A rated current for demanding three-phase circuits.
- 30 mA residual current sensitivity for additional protection against electric shock.
- AC Type residual current detection for sinusoidal alternating earth fault currents.
- C tripping characteristic suitable for general-purpose loads with moderate starting currents.
- 6 kA rated short-circuit breaking capacity.
- Additional terminals provided for remote tripping.
- Factory-assembled construction simplifies installation and speeds up wiring.
Key Features
- ABB DS200 RCBO series.
- 3-pole configuration.
- 50 A rated current.
- 30 mA rated residual operating current.
- AC Type residual current characteristic.
- C overcurrent tripping characteristic.
- 6 kA short-circuit breaking capacity.
- Additional terminals for remote tripping.
- Earth fault indication for easier fault identification.
- Contact position indication for clear device status.
- Test pushbutton for verification of correct residual current operation.
- DIN rail mounting for electrical distribution boards and control panels.
Reliable Protection for Three-Phase Circuits
RCBOs combine the leakage-current protection associated with residual current devices with the overload and short-circuit protection provided by miniature circuit breakers. This allows individual circuits to receive comprehensive protection against several common electrical fault conditions from a single coordinated assembly.
The DS203 AC-C50/0.03 uses an AC Type residual current characteristic for sinusoidal alternating earth fault currents and a C tripping characteristic for loads with moderate starting currents. ABB DS200 RCBOs also incorporate an earth fault indicator and contact position indication to assist with maintenance, fault identification and device-status checking.
Typical Applications
- Commercial electrical distribution boards.
- Industrial three-phase distribution circuits.
- Machinery and automation control panels.
- Higher-current general-purpose circuits.
- Equipment with moderate starting currents.
- Systems requiring remote tripping capability.
- Installations requiring combined residual current and overcurrent protection.
Technical Specifications
| Series | DS200 |
|---|---|
| ABB order code | 2CSR253001R1504 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3 |
| Rated current | 50 A |
| Rated residual current | 30 mA |
| Residual current type | AC Type |
| Tripping characteristic | C |
| Rated short-circuit breaking capacity | 6 kA |
| Remote tripping | Additional terminals provided |
| Mounting type | DIN rail |
| Weight | approx. 0.65 kg |
Frequently Asked Questions
What is the ABB DS203 AC-C50/0.03 used for?
It is used to protect three-phase electrical circuits against overloads, short circuits and sinusoidal alternating earth fault currents in commercial and industrial installations.
What is the rated current of the DS203 AC-C50/0.03?
The ABB DS203 AC-C50/0.03 has a rated current of 50 A.
What residual current sensitivity does this RCBO provide?
It has a rated residual operating current of 30 mA and uses an AC Type residual current characteristic.
What does the C characteristic mean?
The C tripping characteristic is suitable for general-purpose circuits and equipment that can produce moderate starting currents.
Does the ABB DS203 AC-C50/0.03 support remote tripping?
Yes. This 50 A DS203 version is provided with additional terminals for remote tripping.
Trusted ABB Circuit Protection
ABB DS200 RCBOs provide integrated residual current and overcurrent protection for demanding commercial and industrial electrical systems, combining dependable circuit protection with factory-assembled construction and practical fault-status indication.
