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2CSR274101R1505 ABB DS204MAB500.03 DS204 M A-B50/0.03 4-Pole 50 A 30 mA Type A RCBO
ABB DS204MAB500.03 (DS204 M A-B50/0.03) is a 4-pole 50 A Type A RCBO with B-curve overcurrent protection, 30 mA residual current sensitivity and 10 kA breaking capacity.
£348.18
Why Choose the ABB DS204MAB500.03 RCBO?
The ABB DS204MAB500.03, manufacturer type DS204 M A-B50/0.03, is a high-performance 4-pole residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and earth leakage faults. As part of the ABB DS200 M series, it integrates residual current and overcurrent protection within a single DIN-rail protective device for low-voltage electrical distribution systems.
This RCBO has a rated current of 50 A, a Type B tripping characteristic and a rated residual operating current of 30 mA. Its Type A residual current detection provides protection against sinusoidal AC residual currents and pulsating DC residual currents, making it suitable for circuits supplying modern electrical and electronic equipment.
With a rated voltage of 400 V AC and a 10 kA breaking capacity, the DS204 M A-B50/0.03 is designed for dependable circuit protection in residential, commercial and industrial installations. Its four protected poles provide coordinated protection for multi-pole circuits, while the 50 A version is also provided with additional terminals for remote tripping.
Key Advantages
- Combined residual current and overcurrent protection in one RCBO.
- 50 A rated current for higher-current electrical circuits.
- 30 mA residual current sensitivity for additional protection against electric shock.
- Type A residual current detection for AC and pulsating DC residual currents.
- Type B tripping characteristic suited to circuits with relatively low inrush currents.
- 10 kA breaking capacity for robust short-circuit protection.
- Four protected poles for multi-pole electrical distribution systems.
- Additional terminals provided for remote tripping.
Key Features
- ABB DS200 M RCBO series.
- 4-pole configuration with four protected poles.
- 50 A rated current.
- 30 mA rated residual operating current.
- Type A residual current characteristic.
- B-curve overcurrent characteristic.
- 400 V AC rated voltage.
- 10 kA breaking capacity.
- Screw terminal connections for secure conductor termination.
- DIN-rail format for installation in electrical distribution assemblies.
Combined Residual Current and Overcurrent Protection
An RCBO combines residual current protection with overload and short-circuit protection in a single device. The ABB DS204 M A-B50/0.03 monitors the protected circuit for potentially hazardous earth leakage currents while also interrupting excessive currents caused by overload or short-circuit conditions, helping protect people, wiring and connected equipment.
The Type A residual current characteristic enables detection of sinusoidal alternating and pulsating DC residual currents, while the B-curve overcurrent characteristic is designed for circuits where high starting currents are not normally expected. This combination makes the DS204 M A-B50/0.03 suitable for a broad range of low-voltage electrical distribution applications.
Typical Applications
- Residential and commercial electrical distribution boards.
- Multi-pole final circuits requiring 30 mA residual current protection.
- Building services and electrical installations.
- Circuits supplying electrical and electronic equipment.
- Industrial distribution circuits with relatively low inrush currents.
- Installations requiring combined overload, short-circuit and earth leakage protection.
Technical Specifications
| Series | DS200 M |
|---|---|
| SKU | DS204MAB500.03 |
| ABB order code | 2CSR274101R1505 |
| EAN | 8012542848301 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 4 |
| Number of protected poles | 4 |
| Rated current | 50 A |
| Tripping characteristic | Type B |
| Residual current type | Type A |
| Rated residual operating current | 30 mA |
| Rated voltage | 400 V AC |
| Breaking capacity | 10 kA |
| Operating characteristic | Instantaneous |
| Terminal type | Screw terminals |
| Mounting type | DIN rail |
| Standards | IEC/EN 61009-1, IEC/EN 60947-2 |
| Dimensions (H × W × D) | approx. 93 × 105 × 69 mm |
| Weight | approx. 0.825 kg |
Frequently Asked Questions
What is the ABB DS204MAB500.03 used for?
The ABB DS204MAB500.03 is a 4-pole RCBO used to protect electrical circuits against overloads, short circuits and residual earth leakage currents.
What is the rated current of the DS204 M A-B50/0.03?
The RCBO has a rated current of 50 A with a Type B tripping characteristic.
What residual current sensitivity does this RCBO provide?
The DS204 M A-B50/0.03 has a rated residual operating current of 30 mA and uses Type A residual current detection.
What is the breaking capacity of the ABB DS204MAB500.03?
The RCBO has a breaking capacity of 10 kA, providing robust short-circuit protection for suitable low-voltage electrical installations.
How many poles does the DS204 M A-B50/0.03 have?
The device has four poles and four protected poles, making it suitable for multi-pole low-voltage distribution circuits.
Trusted ABB Circuit Protection
ABB DS200 series RCBOs combine residual current, overload and short-circuit protection in compact DIN-rail devices engineered for dependable protection of modern low-voltage electrical installations.
