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2CSR275180R1205 ABB DS201MB20A30 RCBO 1P+N B20 Type A 30 mA
ABB DS201MB20A30 is a 1P+N 20 A B-curve Type A RCBO with 30 mA residual current sensitivity and 10 kA rated short-circuit breaking capacity for combined overload, short-circuit and earth fault protection.
£113.65
Why Choose the ABB DS201MB20A30 RCBO?
The ABB DS201MB20A30 is a compact 1P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect single-phase electrical circuits against overloads, short circuits and residual earth fault currents. With ABB order code 2CSR275180R1205, it forms part of the established ABB DS200 / DS201 M RCBO range for residential, commercial and industrial electrical distribution applications.
Combining overcurrent and residual current protection within a single modular device, the DS201 M B20 A30 helps simplify distribution board design while providing coordinated circuit protection. Its Type A residual current detection responds to sinusoidal alternating and pulsating DC residual currents, while the B tripping characteristic is suited to circuits with relatively low inrush currents.
With a rated current of 20 A, a 30 mA rated residual operating current and a 230 V AC rated voltage, the DS201MB20A30 provides combined protection for suitable single-phase circuits. Its 10 kA rated short-circuit breaking capacity, compact 1P+N arrangement and DIN rail construction make it a robust solution for modular electrical distribution systems.
Key Advantages
- Combined overload, short-circuit and residual current protection in one RCBO.
- 20 A rated current for suitable single-phase electrical circuits.
- 30 mA rated residual operating current for residual current protection.
- Type A residual current detection for sinusoidal AC and pulsating DC residual currents.
- B tripping characteristic suited to circuits with relatively low inrush currents.
- 1P+N configuration with one protected pole and switched neutral.
- 10 kA rated short-circuit breaking capacity for dependable fault protection.
- Compact two-module construction helps optimise distribution board space.
Key Features
- ABB DS201 M RCBO series.
- 20 A rated current.
- 30 mA rated residual operating current.
- 230 V AC rated voltage.
- 1P+N pole configuration.
- Type A residual current protection.
- B-curve tripping characteristic.
- 10 kA rated short-circuit breaking capacity (Icn).
- 500 V rated insulation voltage (Ui).
- 4 kV rated impulse withstand voltage (Uimp).
- Integrated test function for checking residual current protection operation.
- DIN rail mounting for modular electrical distribution boards.
Reliable Combined Circuit Protection
RCBOs such as the ABB DS201MB20A30 combine residual current and overcurrent protection within one modular device. The overcurrent section responds to overload and short-circuit conditions, while the Type A residual current function detects both sinusoidal alternating and pulsating DC earth fault currents, providing broader residual current detection than a Type AC device.
The DS201 M range provides compact protection for single-phase electrical distribution circuits. The DS201MB20A30 combines a 20 A B-curve overcurrent characteristic with 30 mA Type A residual current sensitivity, making it suitable for appropriately designed residential, commercial and industrial circuits where these protection characteristics are required.
Typical Applications
- Residential single-phase electrical circuits.
- Commercial electrical distribution systems.
- Industrial single-phase circuits.
- Lighting and general circuits with relatively low inrush currents.
- Control panels and auxiliary electrical circuits.
- Circuits supplying suitable electronic equipment capable of producing pulsating DC residual currents.
- Applications requiring combined overcurrent and Type A residual current protection.
Technical Specifications
| Series | DS201 M / DS200 RCBO |
|---|---|
| Range | System pro M compact |
| ABB order code | 2CSR275180R1205 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Rated current | 20 A |
| Rated residual current | 30 mA |
| Residual current type | Type A |
| Tripping characteristic | B curve |
| Rated voltage | 230 V AC |
| Poles | 1P+N |
| Number of protected poles | 1 |
| Rated short-circuit breaking capacity (Icn) | 10 kA |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Mounting type | DIN rail mounting |
| Module width | 2 modules |
| Dimensions (H × W × D) | approx. 85 × 35 × 69 mm |
| Weight | approx. 0.2 kg |
| Operating ambient temperature | -25 to +55 °C |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 |
Frequently Asked Questions
What is the ABB DS201MB20A30 used for?
The ABB DS201MB20A30 is an RCBO designed to provide combined overload, short-circuit and Type A residual current protection for suitable single-phase electrical circuits.
What is the current rating of the ABB DS201MB20A30?
The DS201MB20A30 has a rated current of 20 A and uses a B-curve tripping characteristic, making it suitable for appropriate circuits with relatively low inrush currents.
What residual current sensitivity does the DS201MB20A30 provide?
The DS201MB20A30 has a rated residual operating current of 30 mA and provides Type A residual current protection.
What does Type A mean on the ABB DS201MB20A30?
Type A means the RCBO is designed to respond to sinusoidal alternating residual currents and pulsating DC residual currents, making it suitable for circuits where these residual current waveforms may occur.
What is the breaking capacity of the ABB DS201MB20A30?
The DS201MB20A30 has a rated short-circuit breaking capacity (Icn) of 10 kA and is designed for DIN rail mounting in a compact two-module format.
Trusted ABB Circuit Protection
ABB DS200 and DS201 M RCBOs combine residual current and overcurrent protection in a compact modular format, supporting dependable circuit protection across residential, commercial and industrial electrical installations.
