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ABB S203MT-C63 MCB – S200M – 3P – C – 63A
ABB S203MT-C63 3-pole 63 A miniature circuit breaker with C characteristic tripping curve and 10 kA short circuit capacity for railway, traction and industrial circuit protection.
£119.93
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.
Technical Specifications
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| Current | 63 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S203MT-C63 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 63 A | |
| Number of poles | 3 | |
| Tripping characteristic | C | |
| Rated short circuit capacity | 10 kA | |
| Rated operational voltage | 400 V AC / 440 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Current limiting class | Class 3 | |
| Typical applications | Railway, rolling stock, traction systems, industrial control panels and three-phase distribution circuits | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203MT-C63 used for?
The S203MT-C63 is used to protect three-phase electrical circuits against overloads and short circuits in railway, traction and industrial applications.
What current rating does this MCB have?
The ABB S203MT-C63 has a 63 A rated current.
What does the C tripping characteristic mean?
The C curve is suitable for circuits with moderate inrush currents, including many industrial loads, control panels, small motors and transformer-fed circuits.
How many poles does the S203MT-C63 have?
This model has a 3-pole configuration, making it suitable for three-phase circuit protection.
Is the ABB S203MT-C63 suitable for railway applications?
Yes, the S200MT range is designed for traction and railway applications, including rolling stock electrical systems and transport control panels.
Trusted by Railway and Industrial Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway engineers, panel builders and industrial electrical professionals for reliable circuit protection, compact installation and long service life in demanding low voltage systems.
