Why Choose the ABB S203MT-C8NA Miniature Circuit Breaker?
The ABB S203MT-C8NA is a specialist miniature circuit breaker (MCB) from the ABB System pro M Compact S200MT series, designed specifically for traction, railway and demanding industrial electrical applications. Featuring a C characteristic trip curve, it delivers dependable overload and short circuit protection for circuits with moderate inrush currents.
The S200MT range is engineered for transport environments where reliability, safety and long service life are essential. Combining delayed thermal overload protection with fast electromechanical short circuit protection, the S203MT-C8NA helps safeguard electrical equipment while maintaining reliable operation in rolling stock, railway infrastructure and specialist industrial control systems.
With a rated current of 8 A, a 3P+N configuration and a 10 kA breaking capacity, the S203MT-C8NA is ideally suited for low-current three-phase circuits requiring neutral switching in traction, railway and industrial installations.
Key Advantages
- Specialist miniature circuit breaker designed for traction and railway applications.
- 8 A rated current for reliable low-current circuit protection.
- C characteristic trip curve suitable for circuits with moderate inrush currents.
- 3P+N configuration with three protected poles and switched neutral.
- 10 kA breaking capacity for dependable short circuit protection.
- DIN rail mounting for fast installation within electrical panels.
Key Features
- ABB System pro M Compact S200MT series.
- 8 A rated current.
- C curve tripping characteristic.
- 3P+N pole configuration.
- 10 kA rated short circuit breaking capacity.
- Designed specifically for traction and railway environments.
- Thermal overload and electromechanical short circuit protection.
- Compatible with ABB System pro M Compact accessories.
Reliable Circuit Protection for Traction and Railway Systems
The ABB S203MT-C8NA automatically disconnects electrical circuits during overloads and short circuits. Its thermal tripping mechanism protects against prolonged overload conditions, while the electromechanical mechanism reacts rapidly to fault currents, helping minimise equipment damage and downtime.
The S200MT series has been developed specifically for railway and traction applications, making it an excellent choice for rolling stock, transport infrastructure and industrial systems requiring dependable circuit protection and compact installation.
Typical Applications
- Railway and traction electrical systems.
- Rolling stock distribution panels.
- Transport infrastructure equipment.
- Industrial control panels.
- Three-phase low-current circuits.
- Electrical installations requiring neutral switching.
