Why Choose the ABB S203MT-C0.5NA Miniature Circuit Breaker?
The ABB S203MT-C0.5NA is a specialist 3P+N miniature circuit breaker (MCB) designed for railway, traction, rolling stock and demanding industrial electrical installations. Part of the ABB S200MT miniature circuit breaker range, it provides reliable protection against overloads and short circuits in low current control and auxiliary circuits.
Featuring a C tripping characteristic, the S203MT-C0.5NA is suitable for general electrical distribution and circuits with moderate inrush currents. Its current limiting construction helps reduce fault energy, protecting cables, components and connected devices during short circuit conditions.
With a rated current of 0.5 A, a 3P+N configuration and a 10 kA breaking capacity, this ABB miniature circuit breaker is ideal for three-phase systems where neutral switching and precise low current protection are required. The compact DIN rail mounted format enables efficient installation in distribution boards, switchgear assemblies and industrial control panels.
Key Advantages
- Specialist ABB S200MT miniature circuit breaker.
- 0.5 A rated current for low current circuit protection.
- C characteristic suitable for general distribution and moderate inrush loads.
- 3P+N configuration with three protected poles and switched neutral.
- 10 kA breaking capacity for dependable short circuit protection.
- Designed for railway, traction, industrial and commercial installations.
Key Features
- ABB S200MT series.
- 0.5 A rated current.
- C tripping characteristic.
- 3 protected poles plus neutral.
- 10 kA rated breaking capacity.
- Current limiting miniature circuit breaker design.
- Thermal overload and magnetic short circuit protection.
- DIN rail mounting compatible with ABB System pro M Compact accessories.
Reliable Circuit Protection for Railway and Industrial Systems
The ABB S203MT-C0.5NA combines delayed thermal overload protection with electromechanical magnetic short circuit protection. This helps provide dependable disconnection under fault conditions while protecting sensitive circuits and connected electrical equipment.
The S200MT range has been developed for traction and railway applications, offering robust construction, compact installation and compatibility with ABB System pro M Compact accessories for flexible panel design.
Typical Applications
- Railway and rolling stock electrical systems.
- Traction power and auxiliary circuits.
- Low current control circuits.
- Industrial distribution boards.
- Electrical control panels and switchboards.
- Commercial and infrastructure electrical installations.
