ABB S203P-C3NA 3+NP 3 A miniature circuit breaker with C tripping characteristic and 25 kA breaking capacity for industrial, commercial and panel building applications.
The ABB S203P-C3NA is a premium 3+NP miniature circuit breaker (MCB) designed to provide dependable overload and short-circuit protection in industrial, commercial and panel building applications. As part of the ABB S200P System pro M compact series, it delivers high performance circuit protection with a compact DIN rail mounted design for demanding electrical installations.
Featuring a C tripping characteristic, the S203P-C3NA is ideal for protecting general purpose electrical circuits, lighting installations, power distribution systems and control panels with moderate inrush currents. Its current limiting technology helps minimise fault energy, protecting wiring and connected equipment while improving overall system reliability.
With a 3 A rated current, 3+NP configuration and a 25 kA short-circuit breaking capacity, the ABB S203P-C3NA is an excellent choice for three-phase systems requiring neutral switching and dependable protection in industrial automation and electrical distribution installations.
Miniature circuit breakers such as the ABB S203P-C3NA automatically disconnect the electrical supply when overload or short-circuit conditions occur. This protects wiring, distribution equipment and connected electrical devices while reducing downtime and improving installation safety.
Its C characteristic provides dependable protection for circuits with moderate inrush currents, making it suitable for lighting circuits, distribution systems, control panels and general industrial electrical applications.
| Current | 3 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S200P System pro M compact |
| Model | S203P-C3NA |
| Product ID | 2CDS283103R0034 |
| EAN | 4016779591065 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 3 A |
| Configuration | 3+NP |
| Total poles | 4 |
| Protected poles | 3 |
| Tripping characteristic | C |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit breaking capacity | 25 kA |
| Current limiting class | 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | 88 × 70 × 69 mm |
| Weight | approx. 0.56 kg |
The ABB S203P-C3NA protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and panel building applications.
The C characteristic is intended for general electrical circuits with moderate inrush currents, making it suitable for lighting, power distribution and standard industrial loads.
The breaker provides three protected poles together with a switched neutral pole, making it suitable for three-phase systems requiring neutral isolation.
The ABB S203P-C3NA has a 3 A rated current.
The breaker is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
ABB S200P miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for delivering dependable circuit protection, high breaking capacity and long-term reliability.
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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...