Why Choose the ABB S203MT-C25NA Miniature Circuit Breaker?
The ABB S203MT-C25NA is a robust 3P+N miniature circuit breaker (MCB) from the ABB System pro M compact S200MT series. Designed especially for traction, railway and industrial applications, it provides dependable protection against overloads and short circuits in demanding electrical environments.
The S200MT range uses ABB's current-limiting technology with a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short-circuit protection. Its C curve characteristic makes it suitable for circuits with moderate inrush currents, including lighting, control circuits, distribution boards, machinery and general industrial loads.
With a 25 A rated current, 3P+N configuration and 10 kA breaking capacity, the S203MT-C25NA is ideal for protecting three-phase circuits requiring neutral switching. Its compact DIN rail format enables quick installation in railway electrical systems, control panels and commercial distribution boards.
Key Advantages
- Compact 3P+N miniature circuit breaker for railway and industrial applications.
- 25 A rated current for professional circuit protection.
- C curve tripping characteristic suitable for moderate inrush currents.
- 10 kA rated short-circuit breaking capacity for dependable fault protection.
- Current-limiting design helps reduce fault energy.
- DIN rail mounting for fast installation in panels and distribution boards.
Key Features
- ABB System pro M compact S200MT series.
- Product ID: 2CDS273106R0254.
- Model: S203MT-C25NA.
- Rated current: 25 A.
- C curve tripping characteristic.
- 3P+N configuration with three protected poles and switched neutral.
- Thermal overload and electromechanical short-circuit protection.
- Compact DIN rail design with screw terminal connections.
Reliable Protection for Railway and Industrial Systems
Miniature circuit breakers protect electrical circuits by automatically disconnecting the supply when overloads or short circuits occur. The ABB S203MT-C25NA combines thermal and magnetic tripping performance to help protect cables, components and connected equipment from electrical faults.
The S200MT series is designed for applications where reliability, compact construction and long service life are essential. Its C curve response provides a practical balance between sensitivity and tolerance to temporary inrush currents, making it suitable for many railway, commercial and industrial circuits.
Typical Applications
- Railway rolling stock electrical systems.
- Industrial control panels.
- Three-phase circuits with neutral switching.
- Commercial distribution boards.
- Lighting and control circuits.
- OEM machinery and automation systems.
