Why Choose the ABB S203MT-C63 Miniature Circuit Breaker?
The ABB S203MT-C63 is a robust 3-pole miniature circuit breaker (MCB) designed for reliable overload and short circuit protection in railway, traction and demanding industrial applications. As part of the specialised ABB S200MT miniature circuit breaker series, it provides dependable circuit protection for installations where compact design, safety and long-term operational reliability are essential.
This circuit breaker combines delayed thermal overload protection with electromagnetic short circuit protection. Its C characteristic tripping curve makes it suitable for circuits with moderate inrush currents, including general industrial loads, control panels, small motors, transformers and auxiliary railway systems.
With a 63 A rated current, 3-pole configuration and 10 kA short circuit capacity, the ABB S203MT-C63 provides strong protection for higher load three-phase electrical circuits. Its DIN rail mounted format allows efficient installation in rolling stock electrical systems, distribution boards, control cabinets and machine panels.
Key Advantages
- Specialist 3-pole miniature circuit breaker for railway and industrial installations.
- 63 A rated current suitable for higher load three-phase circuits.
- C characteristic tripping curve for circuits with moderate inrush current.
- 10 kA short circuit capacity for dependable fault protection.
- Designed for traction and rolling stock electrical systems.
- DIN rail mounting for quick installation inside electrical panels.
Key Features
- ABB S200MT railway miniature circuit breaker series.
- 63 A rated current.
- 3-pole configuration.
- C characteristic tripping curve.
- 10 kA rated short circuit capacity.
- Thermal overload and electromagnetic short circuit protection.
- DIN rail mounting for modular electrical panels.
- Suitable for railway, traction, automation and industrial distribution systems.
Reliable Circuit Protection for Three-Phase Railway and Industrial Systems
The ABB S200MT range is engineered for railway and traction environments where dependable low voltage protection is critical. These miniature circuit breakers help protect conductors, equipment and connected devices against overload and short circuit conditions whilst supporting compact, modular panel design.
The C curve characteristic of the S203MT-C63 provides a balanced trip response for general purpose and moderately inductive loads. This makes it suitable for three-phase auxiliary systems, industrial control panels, machinery circuits and distribution applications where reliable disconnection is required under fault conditions.
Typical Applications
- Railway rolling stock electrical systems.
- Traction and transport control panels.
- Three-phase industrial distribution boards.
- Machine control panels.
- Automation and auxiliary power circuits.
- Motors, transformers and moderately inductive loads.
