ABB S303P-K0.2NA 3P+N miniature circuit breaker with a 0.2 A rated current, Type K tripping characteristic, switched neutral and 25 kA breaking capacity for industrial control circuits.
£249.05
The ABB S303P-K0.2NA (2CDS383103R0087) is a premium three-phase plus switched neutral (3P+N) miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in specialised industrial control and automation systems. As part of the robust ABB S300P series, it combines exceptional fault-breaking performance with reliable operation for sensitive low-current applications.
The S303P-K0.2NA incorporates three protected phase poles with one switched neutral pole, allowing simultaneous isolation of all conductors while providing thermal and magnetic protection to the phase conductors. Its compact DIN rail design, fail-safe cylinder-lift screw terminals and top or bottom supply connections ensure straightforward installation and long-term reliability.
With a rated current of 0.2 A, a Type K tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-K0.2NA is ideal for protecting highly sensitive industrial control circuits, instrumentation, signalling equipment and specialised automation systems requiring switched neutral isolation.
The ABB S303P-K0.2NA automatically disconnects electrical circuits during overload or short-circuit conditions, protecting sensitive control equipment, signalling systems and connected devices while helping minimise downtime and maintenance costs.
Its Type K tripping characteristic is intended for specialised industrial loads with higher magnetic trip thresholds than Type C devices, making it suitable for selected control, automation and OEM applications requiring switched neutral isolation.
| Current | 0.2 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P |
| Model | S303P-K0.2NA |
| Product ID | 2CDS383103R0087 |
| EAN | 4016779077361 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 0.2 A |
| Configuration | 3P+N (3 protected poles + switched neutral) |
| Total number of poles | 4 |
| Number of protected poles | 3 |
| Neutral pole | Switched, unprotected |
| Tripping characteristic | Type K |
| Rated AC voltage | 415 V AC |
| Maximum DC voltage | 125 V DC |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Rated short-circuit breaking capacity (Icn) | 25 kA |
| Ultimate breaking capacity (Icu) | 100 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Modular width | 4 modules |
| Dimensions (H × W × D) | Approx. 88 × 70 × 69 mm |
| Weight | Approx. 0.496 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S303P-K0.2NA protects sensitive three-phase electrical circuits against overloads and short circuits while providing switched neutral isolation for industrial automation and control applications.
The ABB S303P-K0.2NA has a rated current of 0.2 A.
Type K circuit breakers are intended for specialised industrial applications where higher magnetic trip thresholds are required for circuits with elevated inrush currents.
The circuit breaker provides a rated short-circuit breaking capacity of 25 kA to IEC/EN 60898-1 and an ultimate breaking capacity of 100 kA to IEC 60947-2.
The breaker mounts directly onto a standard DIN rail and supports top or bottom supply connections using cables or compatible ABB busbars.
ABB S300P miniature circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for dependable circuit protection, exceptional fault-breaking performance and long-term reliability in demanding industrial installations.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...
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...