Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CSR256440R2164 ABB DS203NC C16 APR100 RCBO 3P+N 16 A 100 mA
ABB DS203NC C16 APR100 is a 16 A 3P+N Type A APR 100 mA high-immunity RCBO with C-curve overcurrent protection for commercial and industrial three-phase electrical circuits.
£214.25
Why Choose the ABB DS203NC C16 APR100 RCBO?
The ABB DS203NC C16 APR100, order code 2CSR256440R2164, is a compact 3P+N residual current circuit breaker with overcurrent protection (RCBO) designed to protect three-phase circuits against overloads, short circuits and earth fault currents. Part of the ABB DS200 / DSH200 RCBO product group, this Type A APR device combines residual-current and overcurrent protection in a space-saving format for commercial and industrial electrical installations.
The DS203NC C16 APR100 provides protection against sinusoidal alternating and pulsating DC residual currents while incorporating circuit-breaker protection against overload and short-circuit conditions. Its Type A APR high-immunity characteristic provides enhanced resistance to unwanted tripping caused by transient disturbances, helping improve continuity of service in modern electrical installations.
With a rated current of 16 A, C tripping characteristic and 100 mA rated residual operating current, the DS203NC C16 APR100 provides combined protection for three-phase systems with neutral. Its compact 3P+N DIN rail design integrates residual-current and overcurrent protection within a single device, simplifying distribution-board installation.
Key Advantages
- Combined residual current, overload and short-circuit protection in one device.
- 16 A rated current with C-curve overcurrent tripping characteristic.
- 100 mA residual current sensitivity for earth fault protection.
- Type A detection for sinusoidal AC and pulsating DC residual currents.
- APR high-immunity characteristic provides increased resistance to unwanted tripping.
- 3P+N configuration designed for three-phase circuits with neutral.
- Combined protection reduces the need for separate RCD and MCB devices.
- DIN rail mounting enables straightforward integration into electrical distribution boards.
Key Features
- ABB DS203NC RCBO series.
- 16 A rated current.
- C tripping characteristic.
- 100 mA rated residual current (IΔn).
- Type A APR residual current protection.
- High immunity to unwanted tripping for improved continuity of service.
- 3P+N pole configuration for three-phase systems with neutral.
- Integrated residual-current and overcurrent protection.
- Test facility for verification of residual-current protection operation.
- Suitable for fixed commercial and industrial electrical distribution systems.
- Compact modular construction for efficient use of distribution-board space.
- DIN rail mounting for convenient installation.
High-Immunity Protection for Three-Phase Circuits
An RCBO combines residual-current protection with overload and short-circuit protection within a single device. The ABB DS203NC C16 APR100 therefore protects connected circuits against excessive current while detecting earth leakage currents that could create electrical hazards, damage equipment or contribute to electrically initiated fires.
ABB APR residual-current protection is designed for applications where improved immunity to unwanted tripping is required. This makes the DS203NC C16 APR100 particularly useful in commercial and industrial installations containing electronic equipment or other loads where transient disturbances can occur, while its 100 mA residual-current threshold provides earth fault protection for the connected circuit.
Typical Applications
- Three-phase commercial electrical distribution systems.
- Industrial distribution boards and switchboards.
- Circuits requiring combined overcurrent and 100 mA residual-current protection.
- Installations requiring increased resistance to unwanted RCD tripping.
- Three-phase equipment and machinery distribution circuits.
- Commercial and industrial installations requiring compact combined circuit protection.
Technical Specifications
| Product group | DS200 / DSH200 RCBO |
|---|---|
| Series | DS203NC |
| ABB order code | 2CSR256440R2164 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Number of poles | 3P+N |
| Rated current | 16 A |
| Tripping characteristic | C curve |
| Rated residual current (IΔn) | 100 mA |
| Residual current type | Type A APR |
| Operating characteristic | High immunity |
| Application | Commercial and industrial electrical installations |
| Mounting | DIN rail |
Frequently Asked Questions
What is the ABB DS203NC C16 APR100 used for?
The ABB DS203NC C16 APR100 is a 3P+N RCBO used to protect three-phase circuits against overloads, short circuits and residual earth fault currents in commercial and industrial electrical installations.
What is the current rating of the DS203NC C16 APR100?
The RCBO has a rated current of 16 A and uses a C-curve tripping characteristic.
What residual current sensitivity does this RCBO have?
The DS203NC C16 APR100 has a rated residual operating current of 100 mA and uses Type A APR residual-current protection.
What does Type A mean on the ABB DS203NC C16 APR100?
Type A residual-current protection is designed to detect sinusoidal alternating residual currents as well as pulsating DC residual currents, making it suitable for many modern electrical loads.
What does APR mean on the ABB DS203NC C16 APR100?
APR identifies ABB's high-immunity residual-current characteristic, designed to provide increased resistance to unwanted tripping while maintaining Type A residual-current protection.
Trusted ABB Circuit Protection
ABB DS203NC APR RCBOs provide compact combined residual-current and overcurrent protection with enhanced resistance to unwanted tripping, supporting reliable operation in modern commercial and industrial three-phase electrical installations.
