ABB S203P-C25NA System pro M compact S200P miniature circuit breaker featuring a 3P+N configuration, 25 A rated current, C tripping characteristic and 25 kA breaking capacity for industrial and commercial electrical protection.
The ABB S203P-C25NA is a premium 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200P series. Designed to provide dependable overload and short circuit protection, it delivers outstanding reliability for industrial machinery, commercial electrical installations and OEM control panels where high fault protection is essential.
Featuring a C tripping characteristic and a 25 A rated current, the S203P-C25NA is ideal for protecting general-purpose power circuits, lighting installations and equipment with moderate inrush currents. Its advanced current-limiting construction reduces thermal and mechanical stress during fault conditions, helping to protect connected equipment and improve system reliability.
With a 3P+N configuration and a 25 kA breaking capacity, the S203P-C25NA is well suited to demanding three-phase power distribution systems. Its compact DIN rail mounted design allows quick installation while remaining fully compatible with ABB's comprehensive range of modular accessories.
The ABB S203P-C25NA combines thermal overload protection with rapid electromagnetic short circuit protection to safeguard electrical installations against damaging fault conditions. Its current-limiting design helps minimise let-through energy, reducing stress on connected equipment and improving overall system safety.
The C characteristic provides reliable protection for general-purpose electrical circuits, making this miniature circuit breaker suitable for lighting systems, socket circuits, distribution panels and machinery with moderate inrush currents. Its robust construction and compatibility with ABB accessories make it an excellent choice for professional installations.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-C25NA |
| Product ID | 2CDS283103R0254 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 25 A |
| Tripping characteristic | C |
| Number of poles | 3P+N |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Frequency | 50 / 60 Hz |
| Ultimate short circuit breaking capacity (Icu) | 25 kA |
| Service breaking capacity (Ics) | 12.5 kA |
| Current limiting class | 3 |
| Protection rating | IP20 (IP40 when installed within a suitable enclosure) |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.56 kg |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
The S203P-C25NA protects three-phase electrical circuits against overloads and short circuits in commercial, industrial and OEM installations.
This miniature circuit breaker has a 25 A rated current.
A C curve MCB is suitable for general-purpose electrical circuits with moderate inrush currents, including lighting, socket outlets and many industrial loads.
The S203P-C25NA is a 3P+N device with three protected poles and a switched neutral.
Yes. The S200P range is compatible with ABB auxiliary contacts, shunt trips, undervoltage releases and other modular accessories.
ABB System pro M compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for dependable protection, excellent performance and long-term reliability in demanding electrical 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...