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ABB S201MT-C20NA MCB – S200M – 1P+N – C – 20A
ABB S201MT-C20NA miniature circuit breaker from the S200MT series, featuring 20 A rated current, C characteristic, 1P+N configuration and 10 kA breaking capacity for railway and traction applications.
£60.70
Why Choose the ABB S201MT-C20NA Miniature Circuit Breaker?
The ABB S201MT-C20NA is a durable 1P+N miniature circuit breaker (MCB) designed for reliable circuit protection in traction, railway and transport electrical systems. As part of the specialist ABB S200MT series, it provides dependable protection against overloads and short circuits in applications where safety, reliability and compact installation are essential.
Using ABB thermal magnetic tripping technology, the S201MT-C20NA combines delayed overload protection with rapid magnetic tripping for short circuit faults. Its current limiting design helps reduce fault energy, supporting safer operation and improved protection for connected equipment and cabling.
With a 20 A rated current, C characteristic trip curve and 10 kA breaking capacity, the ABB S201MT-C20NA is suitable for circuits with moderate inrush currents, including auxiliary power, control panels, distribution boards and railway electrical equipment. Its modular DIN rail format allows straightforward installation in compact switchgear assemblies.
Key Advantages
- Specialist miniature circuit breaker for traction and railway applications.
- 20 A rated current for auxiliary, control and distribution circuits.
- C characteristic trip curve suitable for moderate inrush currents.
- 10 kA breaking capacity for reliable fault interruption.
- Thermal magnetic protection against overloads and short circuits.
- Compact DIN rail mounted design for electrical panels and switchboards.
Key Features
- ABB S200MT miniature circuit breaker series.
- 1P+N configuration.
- 20 A rated current.
- C characteristic trip curve.
- 10 kA short circuit breaking capacity.
- Designed for railway and traction installations.
- Current limiting performance for enhanced equipment protection.
- Compatible with ABB modular DIN rail systems and accessories.
Reliable Circuit Protection for Railway Electrical Systems
Miniature circuit breakers such as the ABB S201MT-C20NA are used to interrupt overloads and short circuits before they can damage cables, control equipment or connected loads. The C curve characteristic allows the breaker to tolerate moderate inrush currents while still providing effective protection against fault conditions.
The ABB S200MT range is engineered for transport environments, including rolling stock and traction systems. Its compact modular construction, finger-safe design and compatibility with ABB accessory modules make it a practical choice for both new rail installations and maintenance replacement projects.
Typical Applications
- Railway rolling stock electrical systems.
- Traction power distribution panels.
- Auxiliary equipment protection.
- Control panels and switchboards.
- Lighting, signalling and service circuits.
- Industrial transport and infrastructure systems.
Technical Specifications
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| Current | 20 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-C20NA | |
| Product type | Miniature circuit breaker | |
| Rated current | 20 A | |
| Trip characteristic | C | |
| Number of poles | 1P+N | |
| Protected poles | 1 | |
| Rated operational voltage | 230 / 400 V AC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | 88 × 35 × 69 mm | |
| Weight | approx. 0.25 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201MT-C20NA used for?
The S201MT-C20NA is used to protect electrical circuits against overloads and short circuits, particularly in railway, traction and industrial transport applications.
What is the rated current of this circuit breaker?
The ABB S201MT-C20NA has a 20 A rated current.
What trip curve does the S201MT-C20NA use?
This model uses a C characteristic trip curve, making it suitable for circuits with moderate inrush currents.
What is the breaking capacity?
The S201MT-C20NA has a 10 kA short circuit breaking capacity.
How is this miniature circuit breaker mounted?
The breaker is designed for standard DIN rail mounting inside electrical control panels, distribution boards and switchgear assemblies.
Trusted by Railway and Industrial Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted in railway and industrial environments to provide compact, reliable and standards-compliant protection for critical electrical circuits.
