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2CSR254001R1505 ABB DS204 AC-B50/0.03 RCBO 4P 50 A 30 mA 6 kA
ABB DS204 AC-B50/0.03 is a four-pole 50 A Type AC RCBO with 30 mA residual-current sensitivity, B tripping characteristic and 6 kA short-circuit breaking capacity for combined earth-leakage and overcurrent protection.
£305.37
Why Choose the ABB DS204 AC-B50/0.03 RCBO?
The ABB DS204 AC-B50/0.03 is a reliable four-pole residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and AC residual earth-fault currents. As part of the ABB DS200 RCBO series, it combines residual-current and overcurrent protection in a single DIN-rail device for efficient electrical distribution and circuit protection.
This RCBO has a 50 A rated current, B tripping characteristic and 30 mA rated residual operating current. Its Type AC residual-current characteristic is intended for detecting sinusoidal alternating residual currents, while the integrated thermal-magnetic protection provides dependable protection against overload and short-circuit conditions.
With a 6 kA rated short-circuit breaking capacity and four-pole configuration, the DS204 AC-B50/0.03 is suitable for three-phase electrical distribution circuits requiring coordinated protection of all poles. Its B characteristic provides rapid magnetic operation for circuits with relatively low inrush currents, while the integrated RCBO design helps simplify distribution-board installation.
Key Advantages
- Combines residual-current, overload and short-circuit protection in one device.
- 50 A rated current for electrical distribution circuits.
- 30 mA residual operating current for sensitive earth-leakage protection.
- Type AC residual-current detection for sinusoidal alternating residual currents.
- B tripping characteristic for circuits with relatively low inrush currents.
- 6 kA short-circuit breaking capacity.
- Four-pole configuration for multi-pole and three-phase circuit protection.
- Compact DIN-rail format for distribution boards and control panels.
Key Features
- ABB DS200 / DSH200 RCBO product family.
- 4-pole configuration.
- 50 A rated current.
- 30 mA rated residual operating current.
- Type AC residual-current characteristic.
- B curve overcurrent characteristic.
- 6 kA rated short-circuit breaking capacity.
- Combined residual-current and thermal-magnetic overcurrent protection.
- DIN-rail mounting for electrical distribution equipment.
Combined Residual-Current and Overcurrent Protection
RCBOs combine the functions normally provided by a residual current device and a miniature circuit breaker. This allows one protective device to respond to earth-leakage faults as well as overload and short-circuit conditions, helping simplify distribution-board design while providing comprehensive protection for the connected circuit.
The ABB DS200 series is designed for electrical distribution applications where dependable protection and convenient DIN-rail installation are required. The DS204 AC-B50/0.03 provides four-pole switching and protection, making it suitable for multi-pole and three-phase circuits where residual-current and overcurrent protection must be integrated into one device.
Typical Applications
- Three-phase electrical distribution boards.
- Commercial and industrial electrical installations.
- Building electrical distribution systems.
- Control panels and machinery distribution circuits.
- Circuits requiring combined earth-leakage and overcurrent protection.
- Applications with relatively low equipment inrush currents.
Technical Specifications
| Series | DS200 / DSH200 RCBO |
|---|---|
| ABB order code | 2CSR254001R1505 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 4 |
| Rated current | 50 A |
| Rated residual operating current | 30 mA |
| Residual-current type | AC |
| Tripping characteristic | B |
| Rated short-circuit breaking capacity | 6 kA |
| Frequency | 50 / 60 Hz |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB DS204 AC-B50/0.03 used for?
It is a four-pole RCBO used to protect electrical circuits against overloads, short circuits and AC residual earth-fault currents.
What is the rated current of the DS204 AC-B50/0.03?
The RCBO has a rated current of 50 A with a B tripping characteristic.
What residual current sensitivity does this RCBO provide?
The DS204 AC-B50/0.03 has a rated residual operating current of 30 mA and uses a Type AC residual-current characteristic.
What is the breaking capacity of the ABB DS204 AC-B50/0.03?
The device has a rated short-circuit breaking capacity of 6 kA.
What does the B tripping characteristic mean?
The B characteristic provides magnetic tripping at relatively low multiples of rated current, making it suitable for circuits with low to moderate inrush currents.
Trusted ABB Circuit Protection
ABB DS200 RCBOs provide integrated residual-current and overcurrent protection for electrical distribution systems, combining dependable circuit protection with convenient DIN-rail installation in commercial and industrial applications.
