ABB S203MT-C0.5 3-pole 0.5 A miniature circuit breaker with C characteristic tripping curve and 10 kA short circuit capacity for railway, traction and industrial circuit protection.
£154.71
The ABB S203MT-C0.5 is a high quality 3-pole miniature circuit breaker (MCB) designed to provide reliable overload and short circuit protection in railway, rolling stock and demanding industrial applications. As part of the specialist ABB S200MT miniature circuit breaker series, it is engineered to meet the requirements of traction systems and railway vehicles whilst delivering dependable performance in critical electrical installations.
The circuit breaker combines a delayed thermal tripping mechanism for overload protection with an electromagnetic tripping mechanism for short circuit protection. Its C characteristic tripping curve is ideal for protecting general purpose circuits with moderate inrush currents, making it suitable for control systems, signalling equipment and industrial automation applications.
With a 0.5 A rated current, 3-pole configuration and 10 kA short circuit capacity, the ABB S203MT-C0.5 delivers dependable protection for low current three-phase circuits. Its compact DIN rail mounted design simplifies installation whilst maintaining compatibility with ABB System pro M Compact accessories.
The ABB S200MT range has been developed specifically for railway and traction applications, providing dependable protection against overloads and short circuits in demanding operating environments. The product range complies with IEC/EN 60898-1 and IEC/EN 60947-2 whilst supporting the use of ABB System pro M Compact accessories for enhanced functionality.
Its C curve characteristic provides a balanced response for general purpose electrical circuits with moderate inrush currents, making the S203MT-C0.5 suitable for signalling equipment, auxiliary systems, industrial control panels and automation equipment where reliable protection is essential.
| Current | 0.5 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S200MT |
| Model | S203MT-C0.5 |
| Product type | Miniature circuit breaker (MCB) |
| Product ID | 2CDS273445R0984 |
| EAN | 4016779123884 |
| Rated current | 0.5 A |
| Number of poles | 3 |
| Tripping characteristic | C |
| Rated short circuit capacity | 10 kA |
| Rated ultimate short circuit breaking capacity | 15 kA |
| Rated service short circuit breaking capacity | 11.2 kA |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm |
| Weight | Approx. 0.336 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S203MT-C0.5 protects low current three-phase electrical circuits against overloads and short circuits in railway, traction and industrial applications.
The ABB S203MT-C0.5 has a 0.5 A rated current.
The C curve is suitable for circuits with moderate inrush currents, making it appropriate for general industrial and control applications.
This model features a 3-pole configuration for protecting three-phase electrical circuits.
Yes. The S200MT range has been developed specifically for railway and traction applications and is widely used in rolling stock electrical systems.
ABB S200MT miniature circuit breakers are trusted by railway engineers, OEMs and industrial panel builders for dependable circuit protection, compact installation and long-term reliability in demanding electrical systems.
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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...