ABB S203MT-C25 S200MT 3-pole miniature circuit breaker with 25 A rated current, C characteristic and 10 kA breaking capacity for railway, traction and industrial applications.
£123.79
The ABB S203MT-C25 is a high-performance 3-pole miniature circuit breaker (MCB) from the specialist ABB S200MT series. It has been developed specifically for railway, traction and demanding industrial applications, delivering dependable overload and short circuit protection where high reliability, vibration resistance and long service life are essential.
Featuring a C characteristic tripping curve, the S203MT-C25 is ideally suited to circuits with moderate inrush currents, including auxiliary railway systems, industrial control panels, automation equipment and OEM machinery. ABB's advanced current limiting technology helps minimise fault energy while its proven thermal and magnetic tripping mechanisms ensure reliable protection throughout the life of the installation.
With a 25 A rated current, 3 protected poles, 10 kA breaking capacity and compact DIN rail mounted construction, the ABB S203MT-C25 provides dependable three-phase circuit protection for rolling stock, transport infrastructure and industrial electrical systems.
The ABB S203MT-C25 combines delayed thermal overload protection with rapid magnetic short circuit protection to safeguard electrical equipment against overloads and fault currents. Its current limiting construction helps reduce thermal and mechanical stress during short circuit events, improving the reliability and longevity of connected equipment.
Designed specifically for railway applications, the S200MT range also performs exceptionally well in industrial automation, machine building and OEM installations where dependable protection and long operational life are essential.
| Current | 25 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S200MT |
| Model | S203MT-C25 |
| Product ID | 2CDS273445R0254 |
| EAN | 4016779124027 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 25 A |
| Tripping characteristic | C |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V AC |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Rated breaking capacity (IEC/EN 60898-1) | 10 kA |
| Rated ultimate breaking capacity (IEC/EN 60947-2) | 15 kA |
| Rated service breaking capacity | 11.2 kA |
| Protection rating | IP20 |
| Energy limiting class | 3 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
| Mechanical endurance | 20,000 operations |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203MT-C25 protects three-phase electrical circuits against overloads and short circuits, particularly in railway, traction and demanding industrial applications.
The ABB S203MT-C25 has a rated current of 25 A.
The breaker has a 10 kA rated breaking capacity to IEC/EN 60898-1 and a 15 kA rated ultimate breaking capacity to IEC/EN 60947-2.
The C characteristic is intended for circuits with moderate inrush currents, making it suitable for control equipment, automation systems and general industrial loads.
It is designed for DIN rail mounting inside railway electrical cabinets, industrial control panels and automation enclosures.
ABB S200MT miniature circuit breakers are trusted by railway engineers, panel builders and industrial system integrators for dependable circuit protection, excellent reliability and long service life in demanding transport and industrial environments.
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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...