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2CSR273001R1255 ABB DS203 M AC-B25/0.03 RCBO 3P 25 A 30 mA 10 kA
ABB DS203 M AC-B25/0.03 is a 25 A 3-pole Type AC 30 mA RCBO with B-curve overcurrent protection and 10 kA short-circuit breaking capacity for commercial and industrial three-phase electrical circuits.
£206.95
Why Choose the ABB DS203 M AC-B25/0.03 RCBO?
The ABB DS203 M AC-B25/0.03, order code 2CSR273001R1255, is a high-performance 3-pole residual current circuit breaker with overcurrent protection (RCBO) designed to protect three-phase electrical circuits against overloads, short circuits and sinusoidal alternating earth fault currents. Part of the ABB DS200 / DSH200 RCBO product group, it combines residual-current and overcurrent protection in a factory-assembled device for commercial and industrial electrical installations.
This DS200 M series RCBO uses Type AC residual-current protection together with a B tripping characteristic. It provides protection against indirect contact and, with its 30 mA rated residual operating current, additional protection against direct contact. The B-curve characteristic is suited to circuits with relatively low starting and inrush currents.
With a rated current of 25 A, 30 mA residual-current sensitivity and 10 kA rated short-circuit breaking capacity, the DS203 M AC-B25/0.03 provides robust combined protection for three-pole circuits. Its DIN rail construction makes it suitable for professional distribution boards and control panels where dependable three-phase residual-current and overcurrent protection is required.
Key Advantages
- Combined residual current, overload and short-circuit protection in one device.
- 25 A rated current with B-curve overcurrent tripping characteristic.
- 30 mA residual current sensitivity provides additional protection against direct contact.
- Type AC protection for sinusoidal alternating residual currents.
- 3-pole configuration for three-phase electrical circuits.
- 10 kA rated short-circuit breaking capacity for demanding commercial and industrial applications.
- Factory-assembled RCBO construction combines residual-current and overcurrent protection in a single device.
- DIN rail mounting enables straightforward integration into modular three-phase distribution systems.
Key Features
- ABB DS200 M RCBO series.
- 25 A rated current.
- B tripping characteristic.
- 30 mA rated residual current (IΔn).
- Type AC residual-current protection.
- 3-pole configuration.
- 3 protected poles.
- 10 kA rated short-circuit breaking capacity (Icn).
- Protection against overload and short-circuit currents.
- Protection against sinusoidal alternating earth fault currents.
- Protection against indirect contact and additional protection against direct contact.
- B-curve operation suited to circuits with relatively low starting or inrush currents.
- Designed for commercial and industrial electrical applications.
- DIN rail mounting for integration into modular distribution systems.
Reliable 10 kA Three-Phase Circuit Protection
An RCBO combines residual-current protection with overload and short-circuit protection within a single device. The ABB DS203 M AC-B25/0.03 protects three-pole circuits against excessive current while also detecting sinusoidal alternating earth leakage currents, providing coordinated protection for commercial and industrial three-phase electrical distribution systems.
The DS203 M AC-B25/0.03 combines its 25 A B-curve overcurrent characteristic with 30 mA Type AC residual-current protection and a 10 kA rated short-circuit breaking capacity. This combination makes it suitable for three-phase circuits with comparatively low inrush currents where combined overload, short-circuit and Type AC earth fault protection is required.
Typical Applications
- Commercial three-phase electrical distribution systems.
- Industrial distribution boards and control panels.
- Circuits requiring combined 25 A overcurrent and 30 mA residual-current protection.
- Three-phase resistive and low-inrush loads suited to a B-curve characteristic.
- Three-pole circuits requiring Type AC residual-current protection.
- Installations requiring a 10 kA rated short-circuit breaking capacity.
Technical Specifications
| Product group | DS200 / DSH200 RCBO |
|---|---|
| Series | DS200 M |
| ABB order code | 2CSR273001R1255 |
| EAN | 8012542933700 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3 |
| Protected poles | 3 |
| Rated current | 25 A |
| Tripping characteristic | B curve |
| Rated residual current (IΔn) | 30 mA |
| Residual current type | Type AC |
| Rated short-circuit breaking capacity (Icn) | 10 kA |
| Standards | IEC/EN 61009-1; IEC/EN 61009-2-1 |
| Terminal type | Screw terminals |
| Application | Commercial and industrial electrical installations |
| Mounting | DIN rail |
| Weight | approx. 0.61 kg |
Frequently Asked Questions
What is the ABB DS203 M AC-B25/0.03 used for?
The ABB DS203 M AC-B25/0.03 is a 3-pole RCBO 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 current rating of the DS203 M AC-B25/0.03?
The RCBO has a rated current of 25 A and uses a B-curve tripping characteristic.
What residual current sensitivity does this RCBO have?
The DS203 M AC-B25/0.03 has a rated residual operating current of 30 mA and uses Type AC residual-current protection.
What is the breaking capacity of the ABB DS203 M AC-B25/0.03?
The DS203 M AC-B25/0.03 has a rated short-circuit breaking capacity (Icn) of 10 kA, providing robust short-circuit protection for suitable commercial and industrial three-phase installations.
What does Type AC mean on the ABB DS203 M AC-B25/0.03?
Type AC means the RCBO is designed to detect sinusoidal alternating residual currents, providing residual-current protection for applications where this type of earth leakage current is expected.
Trusted ABB Circuit Protection
ABB DS200 M RCBOs combine residual-current and overcurrent protection in factory-assembled devices designed for reliable commercial and industrial electrical distribution, with the DS203 M range providing three-pole protection and high short-circuit breaking capacity for three-phase applications.
