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ABB S203-C25NA MCB – S200 – 3P+N – C – 25A
ABB S203-C25NA System pro M Compact miniature circuit breaker with 3P+N configuration, 25 A rated current, C tripping characteristic and 6 kA breaking capacity for commercial and industrial circuit protection.
£73.56
Why Choose the ABB S203-C25NA Miniature Circuit Breaker?
The ABB S203-C25NA is a premium 3P+N miniature circuit breaker (MCB) from the proven ABB System pro M Compact S200 series, designed to provide reliable overload and short circuit protection for commercial, industrial and OEM electrical installations. Featuring a C tripping characteristic, it is ideally suited to general-purpose circuits with moderate inrush currents, making it an excellent choice for distribution boards, lighting circuits and power distribution applications.
Manufactured using ABB's advanced thermal and electromagnetic trip technology, the S203-C25NA delivers dependable protection while offering excellent current limiting performance. Its compact DIN rail mounted design enables quick installation inside switchboards, control panels and distribution systems, while compatibility with ABB accessories allows flexible system expansion.
With a 25 A rated current, 3P+N configuration and a 6 kA breaking capacity, the ABB S203-C25NA provides dependable protection for three-phase electrical systems requiring a switched neutral, helping maintain electrical safety and equipment reliability.
Key Advantages
- 3P+N miniature circuit breaker for three-phase systems with switched neutral.
- 25 A rated current for commercial and industrial distribution.
- C characteristic trip curve suitable for general-purpose electrical circuits.
- 6 kA breaking capacity for reliable fault interruption.
- Compact DIN rail mounting for straightforward installation.
- Compatible with ABB S200 series accessories for increased flexibility.
Key Features
- ABB System pro M Compact S200 series.
- Model: S203-C25NA.
- Rated current: 25 A.
- 3P+N pole configuration.
- C tripping characteristic.
- 6 kA rated short circuit capacity.
- Thermal overload and electromagnetic short circuit protection.
- Current limiting design.
- DIN rail mounting.
Reliable Protection for Industrial Power Distribution
The ABB S203-C25NA automatically disconnects the electrical supply when overload or short circuit conditions occur, protecting cables, equipment and connected machinery from damage while improving installation safety and reliability.
Its C characteristic trip curve makes it suitable for the majority of commercial and industrial electrical circuits where moderate inrush currents are present, providing an ideal balance between nuisance trip prevention and dependable fault protection.
Typical Applications
- Commercial electrical distribution boards.
- Industrial switchboards.
- Control panels and automation systems.
- General-purpose three-phase power distribution.
- OEM machinery.
- Building services and infrastructure.
Technical Specifications
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| Phase | Three Phase | |
|---|---|---|
| Current | 25 A | |
| Poles | 3-pole + N | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 6 kA | |
| Manufacturer | ABB | |
| Series | System pro M Compact S200 | |
| Model | S203-C25NA | |
| Product ID | 2CDS253103R0254 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 25 A | |
| Tripping characteristic | C | |
| Number of poles | 3P+N | |
| Rated operational voltage | 400 V AC | |
| Maximum operational voltage | 440 V AC | |
| Rated frequency | 50 / 60 Hz | |
| Rated short circuit capacity | 6 kA | |
| Mounting type | DIN rail | |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) | |
| Dimensions (H × W × D) | 88 × 70 × 69 mm | |
| Weight | Approx. 0.46 kg | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203-C25NA used for?
The ABB S203-C25NA protects three-phase electrical circuits with a neutral against overloads and short circuits in commercial and industrial installations.
What does the C trip characteristic mean?
The C characteristic is designed for general-purpose electrical circuits with moderate inrush currents, making it suitable for most distribution and lighting applications.
What is the rated current of this breaker?
This miniature circuit breaker has a 25 A rated current.
How is the S203-C25NA installed?
The breaker mounts directly onto a standard 35 mm DIN rail inside distribution boards, switchboards and control panels.
Can accessories be added to this breaker?
Yes. The ABB S200 range supports auxiliary contacts, shunt trips, undervoltage releases, signalling devices and other compatible accessories.
Trusted by Electrical Professionals Worldwide
ABB System pro M Compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers worldwide for dependable circuit protection, high performance and long service life.
