Why Choose the ABB S203MT-C1 Miniature Circuit Breaker?
The ABB S203MT-C1 is a robust 3-pole miniature circuit breaker (MCB) from the specialised ABB S200MT series, developed specifically for traction and railway applications. Designed to provide dependable overload and short circuit protection, it combines ABB's proven thermal and magnetic tripping technology with enhanced resistance to vibration and harsh operating environments.
Unlike standard miniature circuit breakers, the S200MT range is engineered for rolling stock and transport infrastructure, meeting demanding railway standards while remaining fully compatible with ABB System pro M compact accessories. Its compact DIN rail mounted design allows straightforward installation in electrical cabinets and control panels used throughout rail vehicles and industrial applications.
With a 1 A rated current, C characteristic, 10 kA breaking capacity and 3 protected poles, the ABB S203MT-C1 provides reliable protection for three-phase control circuits, auxiliary systems and railway electrical equipment where dependable performance is essential.
Key Advantages
- Designed specifically for traction and railway applications.
- 1 A rated current for low-current protection.
- C characteristic suitable for general-purpose circuits with moderate inrush currents.
- 10 kA breaking capacity for high fault protection.
- Current limiting Energy Class 3 design.
- Compatible with ABB System pro M compact accessories.
- DIN rail mounted for simple installation.
Key Features
- ABB S200MT railway miniature circuit breaker series.
- Model: S203MT-C1.
- Rated current: 1 A.
- Number of poles: 3.
- C characteristic tripping curve.
- 10 kA rated short-circuit breaking capacity.
- Thermal overload and electromechanical short circuit protection.
- Suitable for traction and railway applications.
- Compact DIN rail mounting.
- Compatible with auxiliary contacts and ABB System pro M accessories.
Reliable Protection for Railway and Industrial Systems
The ABB S203MT-C1 combines delayed thermal overload protection with rapid magnetic short circuit protection to safeguard electrical equipment against damaging fault conditions. Its current limiting design helps reduce mechanical and thermal stress during short circuits, improving overall system reliability.
The S200MT range has been developed specifically for railway environments and demanding industrial installations, providing reliable protection where resistance to vibration, long service life and dependable performance are essential.
Typical Applications
- Railway rolling stock.
- Traction electrical systems.
- Industrial control panels.
- Automation equipment.
- Control circuits.
- OEM machinery.
- Commercial electrical installations.
