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2CSR256040R1064 ABB DS203NC C6 AC30 RCBO 3P+N 6A 30mA 6kA
ABB DS203NC C6 AC30 is a 3P+N 6 A C-curve Type AC RCBO with 30 mA residual-current sensitivity and 6 kA short-circuit breaking capacity for three-phase circuit protection.
£124.92
Why Choose the ABB DS203NC C6 AC30 RCBO?
The ABB DS203NC C6 AC30 is a compact 3P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect three-phase circuits against overloads, short circuits and sinusoidal AC earth fault currents. As part of the ABB DS200 / DSH200 RCBO family, the DS203NC provides comprehensive circuit protection in a space-saving four-module format for commercial and industrial electrical installations.
This RCBO combines overcurrent and residual-current protection in a single DIN-rail device. Its Type AC residual-current characteristic detects sinusoidal alternating residual currents, while the integrated thermal-magnetic protection provides dependable protection against overload and short-circuit conditions.
With a rated current of 6 A, a C tripping characteristic, 30 mA residual-current sensitivity and a 6 kA rated short-circuit breaking capacity, the DS203NC C6 AC30 is suited to three-phase final circuits requiring additional protection against direct contact. Its 3P+N configuration switches all three phases and the neutral in a compact four-module device.
Key Advantages
- Combines residual-current, overload and short-circuit protection in one device.
- 3P+N configuration for three-phase circuits with neutral.
- 6 A rated current with C-curve tripping characteristic.
- 30 mA residual-current sensitivity for additional protection against direct contact.
- 6 kA rated short-circuit breaking capacity.
- Compact four-module design helps optimise distribution-board space.
Key Features
- ABB DS203NC RCBO series.
- 3P+N pole configuration.
- 6 A rated current.
- C tripping characteristic.
- 30 mA rated residual operating current.
- Type AC residual-current protection.
- 6 kA Icn short-circuit breaking capacity.
- 400–415 V AC rated voltage.
- 50–60 Hz rated frequency.
- Four-module DIN-rail design for compact distribution systems.
Reliable Protection for Three-Phase Circuits
RCBOs combine the functions of a miniature circuit breaker and residual-current protective device, allowing one device to disconnect a circuit in response to overloads, short circuits or hazardous earth leakage. The DS203NC provides this combined protection across three-phase circuits with neutral while occupying only four DIN modules.
The Type AC residual-current characteristic responds to sinusoidal alternating earth fault currents, while the C-curve thermal-magnetic characteristic is suitable for circuits with moderate inrush currents. The 30 mA sensitivity also enables additional protection against direct contact in suitable installations.
Typical Applications
- Commercial three-phase electrical installations.
- Industrial distribution systems.
- Three-phase final circuits with neutral.
- Control and auxiliary circuits.
- Electrical distribution boards and panels.
- Circuits requiring combined overcurrent and residual-current protection.
Technical Specifications
| Series | DS203NC |
|---|---|
| Product group | DS200 / DSH200 RCBO |
| ABB order code | 2CSR256040R1064 |
| EAN | 8012542265825 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3P+N |
| Rated current | 6 A |
| Tripping characteristic | C |
| Rated residual current | 30 mA |
| Residual-current type | AC |
| Rated short-circuit breaking capacity (Icn) | 6 kA |
| Rated voltage | 400–415 V AC |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 4 kV |
| Frequency | 50 / 60 Hz |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 |
| Width | 4 modules / 71 mm |
| Dimensions (W × H × D) | 71 × 85 × 69 mm |
| Mounting type | DIN rail |
| Weight | approx. 0.48 kg |
Frequently Asked Questions
What is the ABB DS203NC C6 AC30 used for?
It is a 3P+N RCBO used to protect three-phase circuits against overloads, short circuits and sinusoidal AC earth fault currents.
What is the rated current of the DS203NC C6 AC30?
The RCBO has a rated current of 6 A and uses a C tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS203NC C6 AC30 has a rated residual operating current of 30 mA, enabling additional protection against direct contact in suitable installations.
What residual-current type is the DS203NC C6 AC30?
It is a Type AC RCBO designed to detect sinusoidal alternating residual currents.
What is the breaking capacity of the ABB DS203NC C6 AC30?
The DS203NC C6 AC30 has a rated short-circuit breaking capacity of 6 kA according to IEC/EN 61009.
Trusted ABB Circuit Protection
ABB DS203NC RCBOs combine three-phase overcurrent and residual-current protection in a compact four-module format, providing dependable protection for commercial and industrial electrical distribution systems.
