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2CSR254101R1405 ABB DS204AB400.03 DS204 A-B40/0.03 RCBO 4P 40 A 30 mA Type A 6 kA
ABB DS204AB400.03 is a four-pole Type A RCBO with a 40 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.
£282.05
Why Choose the ABB DS204AB400.03 RCBO?
The ABB DS204AB400.03, manufacturer type DS204 A-B40/0.03, 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 in electrical installations. As part of the proven ABB DS200 series, it combines miniature circuit breaker and residual-current protection functions in a single DIN-rail device.
This RCBO has a 40 A rated current, B tripping characteristic and 30 mA rated residual operating current. Its Type A residual-current detection provides protection against sinusoidal AC residual currents and pulsating DC residual currents, making it suitable for a broad range of residential, commercial and industrial circuits.
With four protected poles, a 400 V AC rated voltage and a 6 kA rated short-circuit breaking capacity according to IEC/EN 61009-1, the DS204 A-B40/0.03 provides dependable circuit and residual-current protection while helping simplify distribution-board design and installation.
Key Advantages
- Combines overcurrent and residual-current protection in one RCBO.
- 40 A rated current for electrical distribution circuits.
- 30 mA residual-current sensitivity for additional protection against electric shock.
- Type A residual-current detection for 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 according to IEC/EN 61009-1.
- DIN-rail mounting for straightforward integration into distribution boards and control panels.
Key Features
- ABB DS200 series RCBO.
- 40 A rated current.
- 30 mA rated residual operating current.
- Type A residual-current characteristic.
- B curve overcurrent characteristic.
- Four-pole configuration with four protected poles.
- 400 V AC rated voltage.
- 50–60 Hz rated frequency.
- 6 kA rated short-circuit breaking capacity to IEC/EN 61009-1.
- Protection against overload, short-circuit and earth leakage currents.
Combined Circuit and Residual-Current Protection
An RCBO combines the functions of a miniature circuit breaker and a residual-current protective device. The ABB DS204 A-B40/0.03 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.
Its Type A characteristic enables detection of sinusoidal alternating and pulsating DC residual currents, while the B curve provides rapid magnetic tripping for circuits with relatively low starting currents. The combined design reduces the number of separate protective devices required within an electrical distribution system.
Typical Applications
- Three-phase electrical distribution boards.
- Residential and commercial electrical installations.
- Industrial electrical distribution systems.
- Lighting and general power circuits.
- Circuits with low to moderate starting currents.
- Circuits requiring combined overload, short-circuit and earth leakage protection.
Technical Specifications
| Series | DS200 |
|---|---|
| SKU | DS204AB400.03 |
| ABB order code | 2CSR254101R1405 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 4 |
| Number of protected poles | 4 |
| Rated current | 40 A |
| Tripping characteristic | B |
| Residual-current type | Type A |
| Rated residual operating current | 30 mA |
| Rated voltage | 400 V AC |
| Rated frequency | 50–60 Hz |
| Rated short-circuit breaking capacity | 6 kA |
| Rated ultimate short-circuit breaking capacity | 10 kA at 400 V AC |
| Standards | IEC/EN 61009-1, IEC/EN 60947-2 |
| Mounting type | DIN rail |
| Module width | 6 modules |
| Dimensions (H × W × D) | 93 × 105 × 69 mm |
| Weight | 0.78 kg |
| Operating temperature | -25 to +55 °C |
| EAN | 8012542860204 |
Frequently Asked Questions
What is the ABB DS204AB400.03 used for?
The ABB DS204AB400.03 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-B40/0.03?
The RCBO has a rated current of 40 A and uses a B tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS204 A-B40/0.03 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 loads.
What is the breaking capacity of the ABB DS204 A-B40/0.03?
The RCBO has a rated short-circuit breaking capacity of 6 kA according to IEC/EN 61009-1 and a rated ultimate short-circuit breaking capacity of 10 kA at 400 V AC according to IEC/EN 60947-2.
Trusted ABB Circuit Protection
ABB DS200 RCBOs provide integrated residual-current, overload and short-circuit protection for residential, commercial and industrial electrical installations, combining multiple protective functions in a compact modular device.
