Why Choose the ABB S204MTR-K1 Miniature Circuit Breaker?
The ABB S204MTR-K1 is a robust four-pole miniature circuit breaker (MCB) designed for reliable overcurrent and short-circuit protection in traction, railway and industrial electrical installations. As part of the ABB System pro M compact S200MTR series, it is developed for demanding rolling stock applications where dependable circuit protection, mechanical robustness and resistance to harsh operating conditions are essential.
This circuit breaker combines a K tripping characteristic with a 10 kA rated breaking capacity, providing dependable protection for circuits and equipment that can experience elevated starting or inrush currents. The S200MTR range is intended for demanding railway environments where reliable operation and resistance to mechanical stresses are important.
With a rated current of 1 A, four protected poles and an AC supply, the S204MTR-K1 is suitable for low-current control, auxiliary and distribution circuits in railway vehicles and other demanding electrical systems. Its modular DIN-rail format enables straightforward installation within compatible electrical distribution and control assemblies.
Key Advantages
- Compact four-pole miniature circuit breaker designed for traction and railway applications.
- 1 A rated current for low-current AC control and auxiliary circuits.
- K tripping characteristic suited to circuits and equipment with elevated starting or inrush currents.
- 10 kA rated breaking capacity for effective short-circuit protection.
- Dedicated construction designed for demanding railway and rolling stock environments.
- Designed for reliable operation in applications subject to mechanical shock and vibration.
- DIN-rail mounting for convenient integration into modular electrical assemblies.
Key Features
- ABB System pro M compact S200MTR series.
- 1 A rated current.
- K tripping characteristic.
- 4-pole configuration with four protected poles.
- 10 kA rated breaking capacity.
- AC operating supply.
- DIN-rail mounting for modular electrical distribution systems.
- Contact Position Indicator (CPI) for clear main-contact status indication.
- Construction intended for demanding railway and traction applications.
- Suitable for applications exposed to mechanical shock and vibration.
Reliable Protection for Railway and Traction Systems
Miniature circuit breakers in the ABB S200MTR range are designed for electrical protection in traction and rolling stock applications. Their compact modular construction enables integration into railway electrical distribution and control assemblies where dependable overcurrent and short-circuit protection is required.
The S204MTR-K1 combines thermal and electromagnetic protection with a K characteristic suited to circuits where higher starting or inrush currents may occur. Its four-pole configuration provides protection across four conductors, while the 10 kA breaking capacity provides effective fault-current interruption within the specified operating conditions.
Typical Applications
- Railway rolling stock electrical systems.
- Traction and auxiliary circuits.
- Railway vehicle control and distribution panels.
- Low-current AC control and equipment protection circuits.
- Circuits supplying equipment with elevated starting or inrush currents.
- Electrical assemblies exposed to vibration and shock.
- Modular DIN-rail electrical installations.
