Why Choose the ABB S203MT-C32 Miniature Circuit Breaker?
The ABB S203MT-C32 is a high-performance 3-pole miniature circuit breaker (MCB) from the specialist ABB S200MT series. It has been developed for railway, traction and demanding industrial applications, delivering dependable overload and short circuit protection where reliability, vibration resistance and long service life are essential.
Featuring a C characteristic tripping curve, the S203MT-C32 is suitable for circuits with moderate inrush currents, including auxiliary railway systems, industrial control panels, automation equipment and OEM machinery. ABB's current limiting technology helps minimise fault energy while its thermal and magnetic tripping mechanisms provide reliable protection throughout the life of the installation.
With a 32 A rated current, 3 protected poles, 10 kA breaking capacity and compact DIN rail mounted construction, the ABB S203MT-C32 provides dependable three-phase circuit protection for rolling stock, transport infrastructure and industrial electrical systems.
Key Advantages
- Designed for railway, traction and demanding industrial applications.
- 32 A rated current for reliable three-phase circuit protection.
- C characteristic suitable for moderate inrush current loads.
- 10 kA breaking capacity for dependable fault protection.
- Current limiting Energy Class 3 construction.
- Compact DIN rail mounted design.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB S200MT railway miniature circuit breaker series.
- Model: S203MT-C32.
- Rated current: 32 A.
- Number of poles: 3.
- C characteristic tripping curve.
- 10 kA rated short-circuit breaking capacity.
- Thermal overload and magnetic short circuit protection.
- Current limiting Energy Class 3.
- DIN rail mounting.
- Compatible with auxiliary contacts, signalling contacts and shunt trip accessories.
Reliable Circuit Protection for Railway and Industrial Systems
The ABB S203MT-C32 combines delayed thermal overload protection with rapid magnetic short circuit protection to safeguard electrical equipment against overloads and fault currents. Its current limiting construction helps reduce thermal and mechanical stress during short circuit events, improving the reliability and longevity of connected equipment.
Designed for railway and demanding industrial environments, the S200MT range is well suited to transport infrastructure, industrial automation, machine building and OEM installations where dependable protection and long operational life are required.
Typical Applications
- Railway rolling stock.
- Traction electrical systems.
- Auxiliary railway equipment.
- Industrial control panels.
- Automation and PLC systems.
- Machine building and OEM equipment.
- Three-phase electrical distribution.
