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2CSR256040R2065 ABB DS203NCB6AC100 RCBO 3P+N B6 AC 100mA 6kA
ABB DS203NCB6AC100 is a 6 A 3P+N Type AC RCBO with B-curve overcurrent protection, 100 mA residual current sensitivity and 6 kA rated short-circuit breaking capacity for commercial and industrial three-phase circuits.
£151.14
Why Choose the ABB DS203NCB6AC100 RCBO?
The ABB DS203NCB6AC100 is a compact and reliable 3P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect three-phase electrical circuits against overloads, short circuits and earth fault currents. As part of the ABB DS203NC range, it combines residual current and overcurrent protection in a space-saving device for commercial and industrial electrical distribution systems.
With a 6 A rated current, B tripping characteristic and 100 mA residual current sensitivity, the DS203NC B6 AC100 provides coordinated protection against overcurrent and sinusoidal alternating residual currents. Its Type AC residual current detection makes it suitable for circuits where sinusoidal AC earth leakage currents are expected.
The DS203NCB6AC100 provides a 6 kA rated short-circuit breaking capacity (Icn) and a 3P+N configuration. Its compact construction allows residual current and overcurrent protection to be incorporated into distribution boards without requiring separate protective devices.
Key Advantages
- Combined residual current and overcurrent protection in one device.
- 6 A rated current for lower-current three-phase circuits.
- B tripping characteristic for dependable overload and short-circuit protection.
- 100 mA residual current sensitivity for earth fault protection.
- Type AC detection for sinusoidal alternating residual currents.
- 6 kA rated short-circuit breaking capacity.
- Compact 3P+N design helps conserve DIN-rail space.
Key Features
- ABB DS203NC RCBO range.
- 3P+N configuration.
- 6 A rated current.
- B curve tripping characteristic.
- 100 mA rated residual operating current.
- Type AC residual current protection.
- 6 kA Icn rated short-circuit breaking capacity.
- DIN-rail mounting for electrical distribution boards.
- Designed for commercial and industrial electrical installations.
- Complies with IEC/EN 61009-1 and IEC/EN 61009-2-1.
Reliable Combined Protection for Three-Phase Circuits
An RCBO combines miniature circuit-breaker and residual current protection within a single device. The ABB DS203NC B6 AC100 therefore protects connected circuits against overload and short-circuit currents while also detecting sinusoidal alternating earth fault currents.
The DS203NC series is designed for three-phase commercial and industrial installations where comprehensive protection and efficient use of distribution-board space are important. Its 3P+N construction provides a practical solution for protecting three-phase circuits with neutral while simplifying protective-device selection and installation.
Typical Applications
- Commercial three-phase electrical distribution systems.
- Industrial control panels and distribution boards.
- Low-current three-phase final circuits.
- Machinery and automation power distribution.
- Building services and electrical installations.
- DIN-rail switchboards requiring combined residual current and overcurrent protection.
Technical Specifications
| Series | DS203NC |
|---|---|
| ABB order code | 2CSR256040R2065 |
| EAN | 8012542076728 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3P+N |
| Rated current | 6 A |
| Tripping characteristic | B curve |
| Residual current type | AC |
| Rated residual current | 100 mA |
| Rated short-circuit breaking capacity (Icn) | 6 kA |
| Mounting type | DIN rail |
| Weight | approx. 0.48 kg |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 |
Frequently Asked Questions
What is the ABB DS203NCB6AC100 used for?
The DS203NCB6AC100 is a 3P+N RCBO designed to protect three-phase circuits against overloads, short circuits and sinusoidal alternating earth fault currents.
What is the rated current of the DS203NCB6AC100?
The RCBO has a rated current of 6 A and uses a B tripping characteristic.
What residual current sensitivity does this RCBO provide?
The DS203NCB6AC100 has a rated residual operating current of 100 mA and provides Type AC residual current protection.
What is the breaking capacity of the ABB DS203NCB6AC100?
The device has a rated short-circuit breaking capacity (Icn) of 6 kA.
How many poles does the DS203NCB6AC100 have?
The DS203NCB6AC100 has a 3P+N configuration designed for protecting three-phase electrical circuits with neutral.
Trusted ABB Circuit Protection
ABB DS203NC RCBOs provide compact combined residual current and overcurrent protection for three-phase commercial and industrial electrical installations, helping engineers create reliable distribution systems while using switchboard space efficiently.
