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2CSR256140R1067 ABB DS203NCK6A30 RCBO 3P+N K6 Type A 30mA 6kA
ABB DS203NCK6A30 is a 6 A 3P+N Type K RCBO with 30 mA Type A residual-current protection and a 6 kA rated short-circuit breaking capacity for commercial and industrial three-phase circuits.
£194.84
Why Choose the ABB DS203NCK6A30 RCBO?
The ABB DS203NCK6A30 is a compact 3P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect three-phase end-user circuits against overloads, short circuits and residual earth-fault currents. Part of the ABB DS203NC series, it combines residual-current and overcurrent protection within a single modular device for commercial and industrial electrical distribution systems.
This RCBO has a rated current of 6 A, a Type K tripping characteristic and a rated residual operating current of 30 mA. Its Type A residual-current characteristic detects sinusoidal alternating and pulsating DC residual currents, providing protection suitable for modern electrical circuits where these residual-current waveforms may occur.
The 30 mA residual-current sensitivity supports protection against indirect contact and additional protection against direct contact in suitable installations. With a rated short-circuit breaking capacity of 6 kA, the DS203NC K6 A30 combines comprehensive circuit protection with a compact 3P+N DIN-rail design.
Key Advantages
- Combined residual-current, overload and short-circuit protection in one device.
- 6 A rated current with Type K tripping characteristic.
- 30 mA residual-current sensitivity for additional protection in suitable installations.
- Type A residual-current detection for sinusoidal AC and pulsating DC residual currents.
- 3P+N configuration for three-phase electrical circuits.
- 6 kA rated short-circuit breaking capacity according to IEC/EN 61009.
Key Features
- ABB DS203NC RCBO series.
- 6 A rated current.
- Type K tripping curve.
- 30 mA rated residual operating current.
- Type A residual-current characteristic.
- Detection of sinusoidal alternating and pulsating DC residual currents.
- 3P+N configuration.
- 6 kA rated short-circuit breaking capacity (Icn).
- Compact DIN-rail format for space-efficient electrical distribution.
- Designed for commercial and industrial applications.
Reliable Type A Protection for Three-Phase Circuits
The ABB DS203NCK6A30 combines overcurrent and residual-current protection within one modular device. Its overcurrent function protects against overload and short-circuit currents, while the Type A residual-current function responds to sinusoidal alternating and pulsating DC earth-fault currents that can occur in modern electrical installations.
With a residual-current sensitivity of 30 mA, the DS203NCK6A30 provides protection against indirect contact and additional protection against direct contact where applicable. Its Type K tripping characteristic and 3P+N construction make it a specialised solution for appropriate commercial and industrial three-phase circuits requiring integrated protection.
Typical Applications
- Three-phase end-user electrical circuits.
- Commercial electrical distribution boards.
- Industrial electrical distribution systems.
- Control panels and switchboards.
- Circuits containing equipment capable of producing pulsating DC residual currents.
- Three-phase circuits requiring combined Type K overcurrent and Type A residual-current protection.
Technical Specifications
| Series | DS203NC |
|---|---|
| SKU | DS203NCK6A30 |
| ABB order code | 2CSR256140R1067 |
| Product group | DS200 / DSH200 RCBO |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Rated current | 6 A |
| Tripping characteristic | K |
| Rated residual operating current | 30 mA |
| Residual-current type | A |
| Number of poles | 3P+N |
| Rated short-circuit breaking capacity (Icn) | 6 kA |
| Mounting type | DIN rail |
| Weight | approx. 0.480 kg |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 |
| Application | Commercial and industrial |
| EAN | 8012542376026 |
Frequently Asked Questions
What is the ABB DS203NCK6A30 used for?
The ABB DS203NCK6A30 is a 3P+N RCBO designed to protect three-phase end-user circuits against overloads, short circuits and residual earth-fault currents.
What is the rated current and tripping curve of the DS203NCK6A30?
The DS203NCK6A30 has a rated current of 6 A and uses a Type K tripping characteristic.
What residual-current protection does the DS203NCK6A30 provide?
The device has a rated residual operating current of 30 mA and uses Type A residual-current detection for sinusoidal alternating and pulsating DC residual currents.
What is the breaking capacity of the ABB DS203NCK6A30?
The DS203NCK6A30 has a rated short-circuit breaking capacity of 6 kA according to IEC/EN 61009.
Where is the ABB DS203NCK6A30 typically used?
The DS203NCK6A30 is intended for commercial and industrial applications requiring compact 3P+N Type K overcurrent protection combined with Type A residual-current protection.
Trusted ABB Circuit Protection
ABB DS203NC Type A residual current circuit breakers with overcurrent protection combine compact three-phase circuit protection with detection of sinusoidal AC and pulsating DC residual currents, providing integrated protection for modern commercial and industrial electrical systems.
