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2CDS271445R0085 ABB S201MT-B8 8A 1P Type B 10kA Miniature Circuit Breaker
ABB S201MT-B8 is an 8 A single-pole Type B miniature circuit breaker with 10 kA breaking capacity, designed for reliable overload and short-circuit protection in railway and traction electrical systems.
£32.69
Why Choose the ABB S201MT-B8 Miniature Circuit Breaker?
The ABB S201MT-B8 is a high-performance single-pole miniature circuit breaker (MCB) developed specifically for electrical circuit protection in railway, traction and rolling stock applications. As part of the specialised ABB S200 MT traction MCB series, it protects cables and conductors against overloads and short circuits while meeting demanding traction-sector requirements.
This miniature circuit breaker combines an 8 A rated current, Type B tripping characteristic and 10 kA short-circuit breaking capacity. The B characteristic is suited to circuits with relatively low starting and inrush currents, providing dependable protection for auxiliary, control, signalling and distribution circuits.
The S201MT-B8 features compact DIN-rail construction and dedicated traction-grade materials. The S200 MT platform is designed for operation from -40 to +70 °C, uses materials compliant with EN 45545-2 fire and smoke requirements, and is tested to IEC/EN 61373 shock and vibration requirements for rolling stock installations.
Key Advantages
- Specialised miniature circuit breaker for railway and traction applications.
- 8 A rated current for low-current circuit protection.
- Type B tripping characteristic suited to circuits with relatively low inrush currents.
- 10 kA breaking capacity for dependable short-circuit protection.
- Single-pole modular construction provides space-efficient panel installation.
- Dedicated plastic materials support EN 45545-2 fire and smoke compliance.
- Tested to IEC/EN 61373 shock and vibration requirements for rolling stock.
- Compatible with ABB System pro M compact accessories for flexible system integration.
Key Features
- ABB S200 MT traction MCB series.
- 8 A rated current.
- 1-pole configuration.
- B tripping characteristic.
- 10 kA short-circuit breaking capacity.
- R26 / HL3 classification according to EN 45545.
- Category 1, Class A/B according to IEC 61373.
- -40 to +70 °C operating temperature capability for the S200 MT platform.
- Contact Position Indicator (CPI) for clear indication of main-contact position.
- Conductor capacity up to 35 mm².
- Compact DIN-rail mounting format.
Reliable Circuit Protection for Railway and Traction Systems
Miniature circuit breakers such as the ABB S201MT-B8 protect cables and electrical equipment by automatically interrupting current when overload or short-circuit conditions occur. A delayed thermal mechanism provides overload protection, while the magnetic tripping mechanism responds rapidly to short-circuit currents.
The S200 MT series extends ABB's System pro M compact portfolio with circuit protection specifically developed for traction applications. Its combination of high breaking capacity, railway-grade materials, shock and vibration resistance and broad temperature capability makes the S201MT-B8 suitable for demanding electrical systems installed aboard rolling stock.
Typical Applications
- Railway rolling stock electrical systems.
- Train auxiliary and control circuits.
- Traction electrical distribution panels.
- Rail vehicle control cabinets.
- Signalling and monitoring circuits.
- Low-current circuits with relatively low inrush currents.
Technical Specifications
| Series | S200 MT |
|---|---|
| ABB order code | 2CDS271445R0085 |
| EAN | 4016779122085 |
| Product type | Miniature circuit breaker (MCB) |
| Product group | DC / Traction MCB |
| Application | Railway / traction circuit protection |
| Number of poles | 1 |
| Rated current | 8 A |
| Tripping characteristic | Type B |
| Short-circuit breaking capacity | 10 kA |
| Fire and smoke standard | EN 45545-2 |
| Hazard level | R26 / HL3 according to EN 45545 |
| Shock and vibration standard | IEC/EN 61373 |
| Shock and vibration category | Category 1, Class A/B |
| Operating temperature | -40 to +70 °C |
| Rated insulation voltage Ui | up to 440 V AC |
| Maximum conductor cross-section | 35 mm² |
| Mounting type | DIN rail |
| Weight | approx. 0.125 kg |
| Pack quantity | 10 pieces |
Frequently Asked Questions
What is the ABB S201MT-B8 used for?
The ABB S201MT-B8 is a single-pole miniature circuit breaker designed to protect cables and electrical circuits against overloads and short circuits, particularly in railway and traction installations.
What is the rated current of the S201MT-B8?
The S201MT-B8 has a rated current of 8 A.
What does the Type B characteristic mean?
The Type B tripping characteristic is suited to circuits with relatively low temporary inrush currents, making it appropriate for many auxiliary, control and distribution loads.
What is the breaking capacity of the ABB S201MT-B8?
The ABB S201MT-B8 provides a 10 kA short-circuit breaking capacity, enabling dependable interruption of high fault currents within its specified operating conditions.
Is the S201MT-B8 suitable for railway applications?
Yes. The ABB S200 MT series is specifically developed for traction applications, using EN 45545-2 compliant fire and smoke materials and testing to IEC/EN 61373 shock and vibration requirements for rolling stock.
Trusted Circuit Protection from ABB
ABB S200 MT miniature circuit breakers provide specialised overload and short-circuit protection for railway and traction installations, combining high breaking capacity, compact construction and traction-focused environmental performance for rolling stock electrical systems.
