ABB S203MT-C3 S200MT 3-pole miniature circuit breaker with 3 A rated current, C characteristic and 10 kA breaking capacity for railway, traction and industrial applications.
£144.40
The ABB S203MT-C3 is a high-performance 3-pole miniature circuit breaker (MCB) from the specialist ABB S200MT series. It is designed to provide dependable overload and short circuit protection for railway, traction, rolling stock and demanding industrial applications where reliability, compact installation and consistent protection are essential.
Featuring a C characteristic tripping curve, the S203MT-C3 is suitable for circuits with moderate inrush currents, including control equipment, auxiliary railway circuits, automation panels and industrial electrical systems. ABB's current limiting design helps reduce fault energy, while thermal and electromechanical tripping mechanisms provide reliable protection during normal operation.
With a 3 A rated current, 3 protected poles, 10 kA breaking capacity and DIN rail mounted construction, the ABB S203MT-C3 is ideal for low-current three-phase protection in transport infrastructure, rolling stock cabinets, control panels and OEM machinery.
The ABB S203MT-C3 combines delayed thermal overload protection with rapid magnetic short circuit protection to help safeguard cables, equipment and connected electrical systems from damaging fault conditions. Its current limiting design helps reduce thermal and mechanical stress during short circuit events, supporting long-term system reliability.
The C characteristic tripping curve makes this MCB suitable for railway auxiliary circuits, control equipment, automation systems and general-purpose industrial loads where moderate inrush currents can occur during normal operation.
| Current | 3 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S200MT |
| Model | S203MT-C3 |
| Product ID | 2CDS273445R0034 |
| EAN | 4016779123921 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 3 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 | 10 kA |
| Protection rating | IP20 |
| Energy limiting class | 3 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203MT-C3 is used to protect three-phase electrical circuits against overloads and short circuits, particularly in railway, traction and demanding industrial applications.
The ABB S203MT-C3 has a rated current of 3 A.
The S203MT-C3 has a rated short circuit breaking capacity of 10 kA.
The C characteristic is designed for circuits with moderate inrush currents, making it suitable for control equipment, auxiliary circuits and general-purpose 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, compact installation and reliable performance 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...