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.
2CSR254101R1505 ABB DS204AB500.03 DS204 A-B50/0.03 RCBO 4P 50 A 30 mA Type A 6 kA
ABB DS204AB500.03 is a four-pole Type A RCBO with a 50 A rated current, B tripping characteristic, 30 mA residual-current sensitivity and 6 kA breaking capacity for combined overload, short-circuit and earth leakage protection.
£340.39
Why Choose the ABB DS204AB500.03 RCBO?
The ABB DS204AB500.03, manufacturer type DS204 A-B50/0.03, is a high-performance four-pole Type A 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 proven ABB DS200 series, it combines overcurrent and residual-current protection in a single modular device for electrical distribution systems.
This RCBO has a 50 A rated current, B tripping characteristic and 30 mA rated residual operating current. Its Type A residual-current characteristic provides detection of sinusoidal AC and pulsating DC residual currents, while the B characteristic is suited to circuits with relatively low starting currents.
With four protected poles and a 6 kA rated short-circuit breaking capacity, the DS204 A-B50/0.03 provides dependable circuit and residual-current protection for three-phase electrical installations while simplifying assembly and wiring compared with separate protective devices.
Key Advantages
- Combines overcurrent and residual-current protection in one RCBO.
- 50 A rated current for higher-load electrical circuits.
- 30 mA residual-current sensitivity for additional protection against electric shock.
- Type A residual-current detection for sinusoidal AC and pulsating DC residual currents.
- B tripping characteristic suitable for circuits with relatively low inrush currents.
- Four protected poles for three-phase electrical installations.
- 6 kA breaking capacity for dependable short-circuit protection.
- Factory-combined RCBO construction helps simplify installation and wiring.
Key Features
- ABB DS200 series RCBO.
- 50 A rated current.
- 30 mA rated residual operating current.
- Type A residual-current characteristic.
- B curve overcurrent characteristic.
- Four-pole configuration.
- 6 kA rated short-circuit breaking capacity.
- Integrated overload, short-circuit and earth leakage protection.
- Test pushbutton for checking residual-current protection operation.
- Earth fault and contact-status indication for easier fault identification.
Combined Circuit and Residual-Current Protection
An RCBO combines the functions of overcurrent and residual-current protection in one device. The ABB DS204 A-B50/0.03 therefore protects circuits against overload and short-circuit currents while also detecting earth leakage that can present an electric-shock or electrically initiated fire risk.
The Type A characteristic enables detection of sinusoidal alternating and pulsating DC residual currents, while the B curve provides overcurrent protection for circuits with relatively low starting currents. The DS200 design is factory assembled to help reduce installation time and simplify wiring within electrical distribution systems.
Typical Applications
- Three-phase electrical distribution boards.
- Commercial electrical installations.
- Industrial electrical distribution systems.
- Lighting and general power circuits.
- Circuits with relatively low starting currents.
- Circuits requiring combined overload, short-circuit and earth leakage protection.
Technical Specifications
| Series | DS200 |
|---|---|
| SKU | DS204AB500.03 |
| ABB order code | 2CSR254101R1505 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 4 |
| Rated current | 50 A |
| Tripping characteristic | B |
| Residual-current type | Type A |
| Rated residual operating current | 30 mA |
| Rated short-circuit breaking capacity | 6 kA |
| Standards | IEC/EN 61009, IEC/EN 60947-2 |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB DS204AB500.03 used for?
The ABB DS204AB500.03 is a four-pole RCBO used to protect electrical circuits against overloads, short circuits and residual earth leakage currents.
What is the current rating of the DS204 A-B50/0.03?
The RCBO has a rated current of 50 A and uses a B tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS204 A-B50/0.03 has a rated residual operating current of 30 mA, providing additional protection against electric shock.
What does Type A mean on this ABB RCBO?
Type A means the RCBO is designed to detect sinusoidal AC and pulsating DC residual currents, making it suitable for a wide range of modern electrical circuits.
What is the breaking capacity of the ABB DS204 A-B50/0.03?
The DS204 A-B50/0.03 has a rated short-circuit breaking capacity of 6 kA.
Trusted ABB Circuit Protection
ABB DS200 RCBOs provide integrated residual-current, overload and short-circuit protection for electrical installations, combining multiple protective functions in a factory-assembled modular device.
