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2CSR256440R1104 ABB DS203NCC10APR30 RCBO 3P+N C10 APR 30 mA
ABB DS203NCC10APR30 is a 10 A 3P+N C-curve APR high-immunity RCBO with 30 mA residual current sensitivity and 6 kA short-circuit capacity for three-phase electrical circuit protection.
£194.84
Why Choose the ABB DS203NCC10APR30 RCBO?
The ABB DS203NCC10APR30 is a compact and reliable 3P+N residual current circuit breaker with overcurrent protection (RCBO) designed to provide combined protection against overloads, short circuits and earth leakage currents in three-phase electrical installations. As part of the ABB DS203NC series, it combines residual current and overcurrent protection in a single modular device, helping simplify distribution board design and circuit protection.
This RCBO features a Type C tripping characteristic, a 10 A rated current and ABB's APR high-immunity residual current characteristic. The APR design provides enhanced resistance to unwanted tripping caused by transient disturbances while retaining residual current protection, making it particularly useful for circuits supplying electronic equipment and other loads where continuity of service is important.
With a rated residual operating current of 30 mA and a rated short-circuit capacity of 6 kA, the DS203NCC10APR30 provides combined circuit and residual current protection for three-phase systems. Its DIN-rail construction makes it suitable for distribution boards, control panels and commercial or industrial electrical installations requiring high-immunity residual current protection.
Key Advantages
- Combined residual current and overcurrent protection in one RCBO.
- 3P+N configuration for three-phase circuits with neutral.
- 10 A rated current with Type C tripping characteristic.
- 30 mA APR high-immunity residual current protection.
- Enhanced resistance to nuisance tripping caused by transient disturbances.
- 6 kA rated short-circuit capacity.
- DIN-rail design for modular electrical distribution systems.
Key Features
- ABB DS203NC RCBO series.
- 10 A rated current.
- Type C tripping characteristic.
- ABB APR high-immunity residual current characteristic.
- 30 mA rated residual operating current.
- 3P+N configuration.
- 6 kA rated short-circuit capacity.
- Protection against overload, short-circuit and residual earth-fault currents.
- Improved immunity to unwanted operation caused by transient disturbances.
- DIN-rail mounting for distribution boards and control panels.
High-Immunity Circuit and Residual Current Protection
RCBOs such as the ABB DS203NC combine the functions of a miniature circuit breaker and residual current protective device in a single unit. This enables one device to protect a circuit against overload and short-circuit conditions while also detecting residual currents caused by insulation faults or leakage to earth.
The DS203NCC10APR30 incorporates ABB's APR high-immunity residual current technology. APR devices are designed to provide increased resistance to unwanted tripping associated with transient disturbances and electrically demanding loads, helping improve continuity of service while maintaining residual current protection. The C-curve overcurrent characteristic also accommodates the moderate inrush currents encountered in many commercial and industrial circuits.
Typical Applications
- Three-phase electrical distribution boards.
- Commercial and industrial electrical installations.
- Circuits requiring 30 mA residual current protection.
- Electronic equipment and loads susceptible to transient disturbances.
- Machinery and automation control panels.
- Installations where improved immunity to nuisance tripping is required.
Technical Specifications
| Series | DS203NC |
|---|---|
| Product group | DS200 / DSH200 RCBO |
| ABB order code | 2CSR256440R1104 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3P+N |
| Rated current | 10 A |
| Tripping characteristic | C curve |
| Residual current characteristic | APR high immunity |
| Rated residual operating current | 30 mA |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity | 6 kA |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 4 kV |
| Protection rating | IP2X |
| Pollution degree | 2 |
| Overvoltage category | III |
| Energy limiting class | 3 |
| Neutral conductor switching | Yes |
| Terminal capacity | up to 25 mm² |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB DS203NCC10APR30 used for?
The ABB DS203NCC10APR30 is a 3P+N RCBO used to protect three-phase electrical circuits against overloads, short circuits and residual earth-fault currents while providing enhanced immunity to unwanted tripping.
What is the current rating of the DS203NCC10APR30?
The DS203NCC10APR30 has a rated current of 10 A and uses a Type C tripping characteristic.
What residual current sensitivity does this RCBO provide?
This model has a rated residual operating current of 30 mA and uses ABB's APR high-immunity residual current characteristic.
What does APR mean on the ABB DS203NC RCBO?
APR identifies ABB's high-immunity residual current characteristic, designed to provide increased resistance to nuisance tripping caused by transient disturbances while maintaining residual current protection.
What is the short-circuit rating of the ABB DS203NCC10APR30?
The DS203NCC10APR30 has a rated short-circuit capacity of 6 kA.
Trusted ABB Circuit Protection
ABB DS203NC residual current circuit breakers with overcurrent protection combine compact modular construction with dependable overload, short-circuit and residual current protection for modern three-phase electrical distribution systems.
