Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
2CDS271565R0577 ABB S201MTR-K50 DC MCB 10kA 1P Type K 50A
ABB S201MTR-K50 DC is a 50 A single-pole Type K miniature circuit breaker with 10 kA DC ultimate short-circuit breaking capacity, designed for overload and short-circuit protection in rolling stock and traction DC circuits.
£153.49
Why Choose the ABB S201MTR-K50 DC Miniature Circuit Breaker?
The ABB S201MTR-K50 DC is a specialised single-pole miniature circuit breaker (MCB) designed for protection and control of DC circuits against overloads and short circuits. Part of the ABB S 200 MTR DC series, it is specifically developed for demanding rolling stock and traction applications where dependable circuit protection and secure electrical connections are essential.
This model combines a 50 A rated current with a Type K tripping characteristic. The K characteristic is particularly suited to circuits supplying inductive loads with elevated starting currents, helping accommodate normal inrush conditions while maintaining effective overload and short-circuit protection.
The S201MTR-K50 DC incorporates a special ring-tongue connection and is dedicated to DC applications with polarity dependency as marked on the device. Its 10 kA DC ultimate short-circuit breaking capacity, railway fire-safety classification and resistance to rolling-stock vibration and shock make it suitable for auxiliary and distribution circuits in rail vehicles. ABB order code 2CDS271565R0577 identifies this exact 50 A Type K configuration.
Key Advantages
- Purpose-designed DC miniature circuit breaker for rolling stock and traction applications.
- 50 A rated current for higher-current auxiliary and distribution circuits.
- Type K tripping characteristic suitable for loads with elevated starting currents.
- 10 kA DC ultimate short-circuit breaking capacity for dependable fault protection.
- Protects electrical circuits against both overloads and short circuits.
- Special ring-tongue connection for secure connections in demanding rolling stock installations.
- Railway-focused construction designed for demanding vibration, shock and fire-safety requirements.
Key Features
- ABB S 200 MTR DC series.
- 50 A rated current.
- 1-pole configuration.
- Type K tripping characteristic.
- 10 kA DC ultimate short-circuit breaking capacity.
- 15 kA AC ultimate short-circuit breaking capacity.
- Dedicated DC construction with polarity dependency marked on the device.
- Special ring-tongue connection system.
- Compliant with IEC/EN 60947-2.
- R26/HL3 hazard level according to EN 45545.
- Category 1, Class A/B body-mounted classification according to IEC 61373.
- Compact single-pole format for space-efficient railway electrical distribution.
Reliable Type K DC Circuit Protection for Rolling Stock
Miniature circuit breakers automatically disconnect electrical circuits when excessive current occurs because of an overload or short circuit. The Type K characteristic of the ABB S201MTR-K50 DC is particularly useful for circuits containing inductive equipment that can produce elevated starting currents, providing effective protection while reducing unwanted operation during normal start-up conditions.
The S 200 MTR DC series is engineered specifically for rolling stock environments. Its dedicated DC construction, secure ring-tongue connection and railway-specific fire, vibration and shock classifications make the S201MTR-K50 DC a dependable protective device for train electrical systems and traction equipment.
Typical Applications
- Railway rolling stock electrical distribution systems.
- Train auxiliary DC circuits.
- Traction control and protection panels.
- Higher-current DC distribution circuits.
- DC circuits supplying inductive loads.
- On-board DC power distribution equipment.
- Transportation electrical cabinets and switchboards.
Technical Specifications
| Series | S 200 MTR DC |
|---|---|
| ABB order code | 2CDS271565R0577 |
| Product type | DC miniature circuit breaker |
| Product group | DC / Traction MCB |
| Rated current | 50 A |
| Number of poles | 1 |
| Tripping characteristic | Type K |
| Voltage type | DC |
| DC ultimate short-circuit breaking capacity | 10 kA |
| AC ultimate short-circuit breaking capacity | 15 kA |
| Standard | IEC/EN 60947-2 |
| Fire-safety classification | R26/HL3 according to EN 45545 |
| Vibration / shock classification | Category 1, Class A/B (body mounted) according to IEC 61373 |
| Connection type | Special ring-tongue connection |
| Polarity | Polarity dependent as marked on device |
| Weight | 0.125 kg |
| Pack quantity | 10 pieces |
Frequently Asked Questions
What is the ABB S201MTR-K50 DC used for?
The S201MTR-K50 DC is designed to protect DC electrical circuits against overloads and short circuits, particularly in rolling stock, traction and associated transportation applications.
What is the rated current of the S201MTR-K50 DC?
The breaker has a rated current of 50 A.
What tripping characteristic does the S201MTR-K50 DC use?
The S201MTR-K50 DC uses a Type K tripping characteristic, making it suitable for circuits supplying inductive loads that can produce elevated starting currents.
What is the DC breaking capacity of the ABB S201MTR-K50 DC?
The S201MTR-K50 DC has a 10 kA DC ultimate short-circuit breaking capacity according to IEC/EN 60947-2.
Is the S201MTR-K50 DC designed for railway applications?
Yes. The S 200 MTR DC series is specifically designed for rolling stock applications and meets railway-focused requirements including R26/HL3 according to EN 45545 and Category 1, Class A/B according to IEC 61373.
Trusted DC Protection for Rolling Stock
ABB S 200 MTR DC miniature circuit breakers provide specialised overload and short-circuit protection for demanding rolling stock installations, combining high DC breaking capacity, secure ring-tongue connections and robust railway-focused construction.
