ABB S203MT-K13 miniature circuit breaker, a 3-pole 13 A K curve MCB from the S200MT range with 10 kA breaking capacity for traction, railway and industrial circuit protection.
£188.43
The ABB S203MT-K13 is a specialist 3-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding electrical installations. Part of the ABB S200MT range, it is developed for traction, railway and industrial applications where robust modular circuit protection is essential.
With a K tripping characteristic, the S203MT-K13 is suitable for circuits with higher inrush currents, helping reduce nuisance tripping while maintaining dependable protection. This makes it a practical choice for selected motor circuits, transformers, inductive loads and industrial control systems.
Rated at 13 A with a 3-pole configuration and 10 kA short-circuit breaking capacity, the ABB S203MT-K13 provides effective three-phase protection in a compact DIN rail format. Its current-limiting design helps reduce fault energy and supports safe operation in demanding transport and industrial environments.
Miniature circuit breakers such as the ABB S203MT-K13 automatically disconnect electrical circuits when excessive current is detected. The thermal tripping mechanism provides overload protection, while the electromechanical tripping mechanism reacts quickly to short-circuit faults.
The K curve characteristic is designed for applications where temporary inrush currents may occur during normal operation. This makes the S203MT-K13 suitable for selected inductive loads, transformers, motor circuits and automation equipment requiring dependable three-phase protection.
| Current | 13 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S200MT |
| Model | S203MT-K13 |
| Product ID | 2CDS273445R0447 |
| EAN | 4016779126663 |
| Product type | Miniature circuit breaker |
| Number of poles | 3P |
| Protected poles | 3 |
| Rated current | 13 A |
| Tripping characteristic | K curve |
| Rated short-circuit capacity | 10 kA |
| Rated ultimate short-circuit breaking capacity | 15 kA |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Pollution degree | 3 |
| Overvoltage category | III |
| Mounting type | DIN rail |
| Width | 3 modules |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.37 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203MT-K13 is used to protect three-phase electrical circuits against overloads and short circuits in traction, railway, industrial and control panel applications.
The S203MT-K13 has a rated current of 13 A.
This miniature circuit breaker has a 3-pole configuration with three protected poles.
The K curve tripping characteristic is designed for circuits with higher inrush currents, making it suitable for selected motors, transformers, inductive loads and control circuits.
It is typically installed on a DIN rail inside distribution boards, control panels, switchboards or industrial electrical enclosures.
ABB S200MT miniature circuit breakers are trusted by railway engineers, panel builders and electrical contractors for reliable modular circuit protection in demanding industrial and transport applications.
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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...
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...