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.
£230.58
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.
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.
| Current | 16 A |
|---|---|
| Phase | Three Phase |
| 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 |
It is a 3P+N RCBO combining miniature circuit breaker and residual current protection in a single device.
The device has a 30 mA Type A residual current sensitivity, providing additional protection against electric shock.
Type C circuit breakers are suitable for circuits with moderate inrush currents, including general commercial and industrial applications.
The ABB DS203NC C16 A30 has a rated short-circuit breaking capacity of 6 kA.
It complies with IEC/EN 61009-1 and IEC/EN 61009-2-1.
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.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...