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2CSR256140R2105 ABB DS203NCB10A100 DS203NC B10 A100 10 A 100 mA Type A RCBO 3P+N
ABB DS203NCB10A100 is a 10 A B-curve 3P+N Type A RCBO with 100 mA residual-current sensitivity and 6 kA short-circuit capacity for three-phase circuit protection.
£181.35
Why Choose the ABB DS203NCB10A100 RCBO?
The ABB DS203NCB10A100 (DS203NC B10 A100) is a compact and reliable residual current circuit breaker with overcurrent protection (RCBO) designed to protect three-phase electrical circuits against overloads, short circuits and earth leakage faults. As part of the ABB System pro M compact DS203NC series, it combines residual-current and overcurrent protection in a single device for commercial and industrial electrical installations.
This Type A RCBO detects sinusoidal AC residual currents as well as pulsating DC residual currents, making it suitable for circuits supplying a wide range of modern electrical equipment. Its 100 mA rated residual operating current provides earth-leakage protection, while the integrated B tripping characteristic provides responsive overcurrent protection for circuits with relatively low starting and inrush currents.
With a rated current of 10 A and a 3P+N configuration, the DS203NCB10A100 is designed for three-phase circuits requiring combined overcurrent and residual-current protection. Its compact DIN-rail format helps conserve distribution-board space while providing coordinated circuit protection within a single device.
Key Advantages
- Combined residual-current and overcurrent protection in one compact RCBO.
- 10 A rated current with B tripping characteristic.
- 100 mA rated residual current for earth-leakage protection.
- Type A residual-current detection for sinusoidal AC and pulsating DC residual currents.
- 3P+N configuration designed for three-phase circuits with neutral.
- Compact DIN-rail design for space-efficient distribution-board installation.
Key Features
- ABB System pro M compact DS203NC series.
- 10 A rated current.
- B tripping characteristic.
- 100 mA rated residual current.
- Type A residual-current protection.
- 3P+N configuration for three-phase circuits with neutral.
- 6 kA rated short-circuit capacity (Icn).
- Protection against overload, short circuit and residual earth leakage currents.
- DIN-rail mounting for straightforward integration into electrical distribution systems.
Reliable Protection for Three-Phase Electrical Circuits
RCBOs such as the ABB DS203NC combine the functions of a miniature circuit breaker and residual-current device in one unit. This enables a single protective device to respond to overloads, short circuits and earth leakage currents while simplifying distribution-board design and reducing the space required for separate protective devices.
The DS203NC Type A range is designed for commercial and industrial installations where protection against sinusoidal AC and pulsating DC residual currents is required. The B characteristic provides responsive protection for circuits with relatively low inrush currents, while its 100 mA residual-current sensitivity provides earth-leakage protection for appropriately designed circuits.
Typical Applications
- Three-phase commercial electrical circuits.
- Industrial distribution boards and control panels.
- Three-phase circuits requiring 100 mA residual-current protection.
- Control and auxiliary circuits.
- Building services and electrical distribution systems.
- Circuits with relatively low inrush currents requiring B-curve protection.
Technical Specifications
| Series | System pro M compact DS203NC |
|---|---|
| SKU | DS203NCB10A100 |
| ABB order code | 2CSR256140R2105 |
| Product type | Residual current circuit breaker with overcurrent protection (RCBO) |
| Pole configuration | 3P+N |
| Rated current | 10 A |
| Tripping characteristic | B curve |
| Rated residual current | 100 mA |
| Residual-current type | Type A |
| Rated short-circuit capacity (Icn) | 6 kA |
| Frequency | 50 / 60 Hz |
| Mounting type | DIN rail |
| Width | 4 modules / approx. 71 mm |
| Dimensions (W × H × D) | approx. 71 × 85 × 69 mm |
| Net weight | approx. 0.48 kg |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 |
Frequently Asked Questions
What is the ABB DS203NCB10A100 used for?
The ABB DS203NCB10A100 is used to protect three-phase circuits with neutral against overloads, short circuits and residual earth leakage currents.
What is the rated current of the DS203NCB10A100?
The RCBO has a rated current of 10 A and uses a B tripping characteristic.
What residual-current sensitivity does this RCBO provide?
The DS203NCB10A100 has a rated residual operating current of 100 mA for earth-leakage protection in appropriately designed electrical circuits.
What does Type A mean on this ABB RCBO?
Type A means the RCBO is designed to detect sinusoidal alternating residual currents as well as pulsating DC residual currents.
What is the breaking capacity of the ABB DS203NCB10A100?
The DS203NCB10A100 has a rated short-circuit capacity Icn of 6 kA, providing dependable short-circuit protection for suitable commercial and industrial circuits.
Trusted ABB Circuit Protection
ABB System pro M compact circuit protection devices are designed for dependable electrical distribution in commercial and industrial installations, combining compact construction with coordinated protection against electrical faults.
