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2CSR256140R1164 ABB DS203NC C16 A30 Residual Current Circuit Breaker with Overcurrent Protection RCBO 4 Pole 16A Type C 30mA
ABB DS203NC C16 A30 3P+N RCBO with 16 A rated current, Type C tripping characteristic, 30 mA Type A residual current protection and 6 kA breaking capacity.
£149.88
Why Choose the ABB DS203NC C16 A30 RCBO?
The ABB DS203NC C16 A30 (Product ID: 2CSR256140R1164) is a premium 3P+N Residual Current Circuit Breaker with Overcurrent Protection (RCBO) from ABB's compact DS203NC range. Combining the functions of a miniature circuit breaker and a residual current device in a single unit, it provides comprehensive protection against overloads, short circuits, earth leakage currents, indirect contact and additional protection against direct contact.
Featuring a 16 A rated current, a Type C tripping characteristic and a 30 mA Type A residual current sensitivity, the DS203NC C16 A30 is ideal for three-phase installations supplying commercial buildings, industrial equipment and distribution boards where both overcurrent and earth leakage protection are required.
Its compact four-module design saves valuable panel space while complying with IEC/EN 61009-1 and IEC/EN 61009-2-1. The device offers a 6 kA breaking capacity and is engineered for reliable long-term performance in demanding electrical installations.
Key Advantages
- Combined RCBO providing both overcurrent and residual current protection.
- 16 A rated current.
- 30 mA Type A residual current protection.
- Type C tripping characteristic for general-purpose circuits.
- 6 kA short-circuit breaking capacity.
- Compact four-module design saves distribution board space.
Key Features
- ABB DS203NC C16 A30 RCBO.
- Product ID: 2CSR256140R1164.
- 3P+N configuration.
- 16 A rated current.
- 30 mA residual operating current.
- Type A residual current detection.
- Type C tripping characteristic.
- 6 kA breaking capacity.
- DIN rail mounting.
- Suitable for 400–415 V AC systems.
Integrated Electrical Protection in One Device
The ABB DS203NC C16 A30 simplifies electrical protection by integrating an MCB and an RCD into a single compact device. This reduces installation space while providing dependable protection against overloads, short circuits and earth leakage faults, helping improve safety and minimise installation complexity.
Its Type A residual current sensing technology detects both sinusoidal AC and pulsating DC leakage currents, making it suitable for installations supplying modern electronic equipment, commercial buildings and industrial applications.
Typical Applications
- Commercial distribution boards.
- Industrial control panels.
- Three-phase electrical installations.
- Building services.
- OEM machinery.
- Electrical systems requiring combined overload and earth leakage protection.
Technical Specifications
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| Current | 16 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole + N | |
| Device Type | RCBO | |
| Trip Curve | C curve | |
| Breaking Capacity | 6 kA | |
| Residual Current | 30 mA | |
| RCD Type | Type A | |
| Manufacturer | ABB | |
| Series | DS203NC | |
| Model | DS203NC C16 A30 | |
| Product ID | 2CSR256140R1164 | |
| EAN | 8012542830924 | |
| Product type | Residual Current Circuit Breaker with Overcurrent Protection (RCBO) | |
| Number of poles | 3P+N | |
| Rated current (In) | 16 A | |
| Tripping characteristic | Type C | |
| Residual current type | Type A | |
| Rated residual operating current (IΔn) | 30 mA | |
| Rated operational voltage | 400–415 V AC | |
| Rated insulation voltage | 500 V | |
| Breaking capacity | 6 kA | |
| Frequency | 50/60 Hz | |
| Mounting | DIN rail | |
| Protection rating | IP20 | |
| Approximate dimensions (W × H × D) | 71 × 85 × 69 mm | |
| Weight | Approx. 0.48 kg | |
| Standards | IEC/EN 61009-1, IEC/EN 61009-2-1 | |
| HS Code | 85363010 | |
| Country of Manufacture | Italy |
Frequently Asked Questions
What is the ABB DS203NC C16 A30?
It is a 3P+N RCBO combining miniature circuit breaker and residual current protection in a single device.
What is the residual current sensitivity?
The device has a 30 mA Type A residual current sensitivity, providing additional protection against electric shock.
What does the Type C tripping characteristic mean?
Type C circuit breakers are suitable for circuits with moderate inrush currents, including general commercial and industrial applications.
What is the breaking capacity?
The ABB DS203NC C16 A30 has a rated short-circuit breaking capacity of 6 kA.
Which standards does this RCBO comply with?
It complies with IEC/EN 61009-1 and IEC/EN 61009-2-1.
Trusted Protection from ABB
ABB DS203NC RCBOs provide reliable combined overcurrent and residual current protection, offering compact installation, dependable operation and enhanced electrical safety across residential, commercial and industrial applications.
