ABB 2CDS383103R0104 S303P-C10NA miniature circuit breaker with a 10 A current rating, Type C tripping characteristic, 3P+N configuration and 25 kA breaking capacity.
£136.85
The ABB 2CDS383103R0104, also identified as the S303P-C10NA, is a high-performance miniature circuit breaker (MCB) designed to protect industrial electrical installations against overload currents and short circuits. As part of the advanced ABB S300P System pro M compact series, it combines a compact modular design with dependable circuit protection for demanding power distribution applications.
This miniature circuit breaker features a 3P+N configuration, providing protection across three phases while switching the neutral conductor. Its Type C tripping characteristic is suitable for circuits containing equipment with moderate inrush currents, including motors, control transformers, lighting systems and industrial machinery.
With a rated current of 10 A, an operating voltage of up to 415 V AC and a high short-circuit breaking capacity of 25 kA, the S303P-C10NA offers robust protection for industrial distribution boards and control panels. Its DIN rail mounting arrangement supports efficient installation, while bidirectional supply capability allows connection from either the top or bottom.
Miniature circuit breakers such as the ABB S303P-C10NA automatically disconnect an electrical circuit when excessive current is detected. This helps protect cables, connected equipment and electrical infrastructure from damage caused by overload conditions or short circuits.
The S300P series is engineered for installations requiring high breaking performance, dependable operation and compact panel integration. Its Type C characteristic accommodates moderate starting currents while maintaining effective protection for industrial equipment, machinery circuits and commercial power distribution systems.
| Current | 10 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P System pro M compact |
| Model | S303P-C10NA |
| Product ID | 2CDS383103R0104 |
| Product type | Miniature circuit breaker |
| Rated current | 10 A |
| Tripping characteristic | Type C |
| Number of poles | 3P+N |
| Number of protected poles | 3 |
| Rated AC voltage | Up to 415 V AC |
| Rated DC voltage | Up to 125 V DC |
| Rated frequency | 50 / 60 Hz |
| Breaking capacity | 25 kA |
| Rated insulation voltage | 500 V |
| Protection rating | IP20 at terminals / IP40 in enclosure |
| Mounting type | DIN rail mounting |
| Module width | 4 modular spaces |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| EAN | 4016779077347 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA C22.2 No. 235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
This miniature circuit breaker protects three-phase electrical circuits against overload currents and short circuits in industrial and commercial installations.
The ABB S303P-C10NA has a rated operational current of 10 A.
The 3P+N configuration provides three protected phase poles together with a switched neutral pole for three-phase electrical systems.
The 2CDS383103R0104 offers a high AC short-circuit breaking capacity of up to 25 kA, subject to the applicable installation standard and operating voltage.
The circuit breaker is designed for mounting on a standard DIN rail inside an electrical distribution board, switchboard or industrial control panel.
ABB S300P miniature circuit breakers are used by electrical engineers, panel builders and industrial equipment manufacturers to provide dependable overload and short-circuit protection in demanding power distribution 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...
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...