ABB S303P-C1NA 3P+N miniature circuit breaker with a 1 A rated current, Type C tripping characteristic and 25 kA breaking capacity for industrial control and distribution circuits.
£191.60
The ABB S303P-C1NA (2CDS383103R0014) is a high-performance three-phase plus switched neutral (3P+N) miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the trusted ABB S300P series, it combines outstanding fault-breaking performance with dependable operation for distribution boards, control panels and OEM equipment.
Manufactured in accordance with international IEC and UL standards, the S303P-C1NA features a compact DIN rail design, fail-safe cylinder-lift screw terminals and flexible top or bottom supply connections. Its switched neutral configuration allows simultaneous isolation of the neutral conductor while protecting all three phase conductors.
With a rated current of 1 A, a Type C tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-C1NA is ideal for low-current three-phase control circuits, instrumentation, automation systems and sensitive industrial equipment requiring neutral isolation.
The ABB S303P-C1NA automatically disconnects electrical circuits during overload or short-circuit conditions, protecting cables, control equipment and connected devices from electrical damage while helping reduce downtime and maintenance costs.
Its Type C tripping characteristic accommodates moderate inrush currents, while the switched neutral pole provides complete circuit isolation, making it ideal for industrial automation, instrumentation, machinery and three-phase distribution circuits requiring neutral switching.
| Current | 1 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P |
| Model | S303P-C1NA |
| Product ID | 2CDS383103R0014 |
| EAN | 4016779077484 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 1 A |
| Configuration | 3P+N (3 protected poles + switched neutral) |
| Tripping characteristic | Type C |
| Rated AC voltage | 415 V AC |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Rated short-circuit breaking capacity (Icn) | 25 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 |
| Operating temperature | -40°C to +70°C |
| Weight | Approx. 0.50 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S303P-C1NA protects three-phase electrical circuits against overloads and short circuits while providing switched neutral isolation, making it suitable for industrial control and distribution applications.
The ABB S303P-C1NA has a rated current of 1 A.
3P+N indicates three protected phase poles with an additional switched neutral pole, allowing all conductors to be isolated simultaneously while only the phase conductors receive overload and short-circuit protection.
The circuit breaker provides a rated short-circuit breaking capacity of 25 kA.
The breaker mounts directly onto a standard DIN rail and supports top or bottom supply connections using cables or compatible busbars.
ABB S300P miniature circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for dependable circuit protection, outstanding 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...