Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CSR273101R1205 ABB DS203MAB200.03 DS203 M A-B20/0.03 20 A 30 mA 10 kA 3P Type A RCBO
ABB DS203MAB200.03 (2CSR273101R1205) is a three-pole 20 A Type A RCBO with B tripping characteristic, 30 mA residual-current sensitivity and 10 kA short-circuit breaking capacity.
£228.61
Why Choose the ABB DS203MAB200.03 RCBO?
The ABB DS203MAB200.03, manufacturer order code 2CSR273101R1205, is a high-performance three-pole residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and residual earth fault currents. As part of the established ABB DS200 / DS203 M RCBO series, it combines overcurrent and residual-current protection within a single modular protective device.
The DS203 M A-B20/0.03 provides a 20 A rated current, B tripping characteristic and 30 mA rated residual operating current. Its Type A residual-current detection provides protection against sinusoidal alternating residual currents as well as pulsating DC residual currents, making it suitable for circuits supplying a wide range of modern electrical and electronic equipment.
With a 10 kA short-circuit breaking capacity and three protected poles, the DS203MAB200.03 is designed for three-phase electrical distribution applications where dependable circuit and earth-leakage protection are required. Its modular construction enables straightforward installation within electrical distribution boards and control panels.
Key Advantages
- Combined residual-current and overcurrent protection in a single RCBO.
- 20 A rated current for suitable three-phase circuits.
- 30 mA residual operating current for additional protection against electric shock.
- 10 kA short-circuit breaking capacity for robust circuit protection.
- Type A residual-current detection for sinusoidal AC and pulsating DC residual currents.
- B-curve tripping characteristic suitable for circuits with relatively low inrush currents.
- Three protected poles for use with three-phase electrical circuits.
Key Features
- ABB DS200 / DS203 M RCBO series.
- 20 A rated current.
- 30 mA rated residual current.
- 10 kA short-circuit breaking capacity.
- Type A residual-current characteristic.
- Type B overcurrent tripping characteristic.
- Three protected poles.
- Combined protection against overload, short-circuit and residual earth fault currents.
- Modular design for electrical distribution boards and control panels.
Combined Circuit and Residual-Current Protection
RCBOs combine the functions of overcurrent and residual-current protection in one device. The ABB DS203 M A-B20/0.03 protects connected circuits against excessive current caused by overloads and short circuits while also detecting residual earth fault currents that can create electric-shock and electrical safety hazards.
The Type A residual-current characteristic enables detection of sinusoidal alternating and pulsating DC residual currents. Combined with 30 mA sensitivity, a 10 kA short-circuit breaking capacity and B-curve overcurrent protection, the DS203MAB200.03 provides comprehensive protection for suitable three-phase circuits in commercial and industrial electrical installations.
Typical Applications
- Three-phase electrical distribution circuits.
- Commercial electrical installations.
- Industrial distribution boards and control panels.
- Circuits requiring combined overload and earth-leakage protection.
- Equipment and circuits containing electronic loads that can produce pulsating DC residual currents.
- Circuits with resistive or relatively low-inrush loads suited to a B tripping characteristic.
- Final distribution circuits requiring 30 mA residual-current protection.
Technical Specifications
| Series | DS200 / DS203 M |
|---|---|
| Manufacturer material ID | DS203MAB200.03 |
| Manufacturer order code | 2CSR273101R1205 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of protected poles | 3 |
| Rated current | 20 A |
| Rated residual current | 30 mA |
| Residual-current type | A |
| Tripping characteristic | B |
| Short-circuit breaking capacity | 10 kA |
| Mounting type | DIN-rail mounting |
Frequently Asked Questions
What is the ABB DS203MAB200.03 used for?
The ABB DS203MAB200.03 is an RCBO used to protect three-phase electrical circuits against overloads, short circuits and residual earth fault currents.
What is the rated current of the ABB DS203 M A-B20/0.03?
The device has a rated current of 20 A with a B tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS203 M A-B20/0.03 has a rated residual operating current of 30 mA and uses Type A residual-current detection for sinusoidal AC and pulsating DC residual currents.
What is the breaking capacity of the DS203MAB200.03?
The ABB DS203MAB200.03 has a 10 kA short-circuit breaking capacity.
How many poles does the ABB DS203 M A-B20/0.03 have?
This RCBO has three protected poles and is designed for suitable three-phase electrical circuits.
Trusted ABB Circuit Protection
ABB DS200 series RCBOs combine residual-current and overcurrent protection in modular protective devices, helping provide dependable protection against overloads, short circuits, residual earth fault currents and electric-shock hazards in electrical distribution systems.
