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.
ABB S204MTR-K50 MCB – 4P – K Curve – 50A – 10kA – DC
ABB S204MTR-K50 miniature circuit breaker, a 50 A four-pole DC circuit protection device with K tripping characteristic and 10 kA rated breaking capacity for traction and railway applications.
£649.38
Why Choose the ABB S204MTR-K50 Miniature Circuit Breaker?
The ABB S204MTR-K50 is a robust four-pole miniature circuit breaker (MCB) designed for reliable overcurrent and short-circuit protection in DC electrical systems, particularly for traction and railway applications. As part of the ABB System pro M compact S200MTR DC series, it provides dependable circuit protection for rolling stock and other demanding railway electrical installations.
The S204MTR-K50 combines a K tripping characteristic with a rated current of 50 A and a rated breaking capacity of 10 kA. Its four-pole configuration provides protection across four DC circuits, while the compact modular design supports straightforward integration into electrical distribution and control assemblies.
Designed for railway and traction applications, the S204MTR-K50 is supplied for DC applications and is suitable for installation on standard DIN rails. Its compact form factor and established System pro M compact platform make it suitable for space-conscious electrical distribution systems where reliable circuit protection is required.
Key Advantages
- Compact miniature circuit breaker designed for traction and railway applications.
- 50 A rated current for higher-current DC circuit protection.
- Four-pole configuration for multi-pole DC circuit protection.
- K tripping characteristic for circuit protection suited to applications with higher starting currents.
- 10 kA rated breaking capacity for effective short-circuit protection.
- DIN-rail mounting for straightforward installation in electrical distribution assemblies.
Key Features
- ABB System pro M compact S200MTR DC series.
- 50 A rated current.
- K tripping characteristic.
- Four-pole construction.
- 10 kA rated breaking capacity.
- Designed for DC supply applications.
- Suitable for traction and railway electrical systems.
- Compact modular design with DIN-rail mounting.
Reliable Circuit Protection for Railway Electrical Systems
Miniature circuit breakers such as the ABB S204MTR-K50 provide automatic protection against excessive current and short-circuit conditions. The breaker interrupts the affected circuit when the current reaches the relevant tripping conditions, helping protect electrical equipment, wiring and distribution systems.
The S200MTR DC series is developed for electrical installation solutions in rolling stock and traction applications. Its K characteristic and four-pole configuration provide a practical protection solution for DC distribution circuits where dependable switching and overcurrent protection are required.
Typical Applications
- Railway rolling stock electrical systems.
- Traction and auxiliary DC circuits.
- DC electrical distribution systems.
- Railway control and equipment circuits.
- Industrial DC distribution assemblies.
- Electrical panels and control cabinets requiring four-pole DC circuit protection.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 50 A | |
|---|---|---|
| Poles | 4-pole | |
| Phase | Three Phase | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Weight | 0.500 kg | |
| Rated current | 50 A | |
| Number of poles | 4 | |
| Tripping characteristic | K | |
| Mounting type | DIN-rail mounting | |
| Product type | Miniature circuit breaker | |
| Manufacturer | ABB | |
| Series | System pro M compact S200MTR (traction) | |
| Model | S204MTR-K50 | |
| Order code | 2CDS274565R0577 | |
| Rated breaking capacity | 10 kA | |
| Supply | DC |
Frequently Asked Questions
What is the ABB S204MTR-K50 used for?
The ABB S204MTR-K50 is a four-pole miniature circuit breaker designed to provide overcurrent and short-circuit protection in DC electrical systems, particularly traction and railway applications.
What is the rated current of the S204MTR-K50?
The S204MTR-K50 has a rated current of 50 A.
What tripping characteristic does the S204MTR-K50 have?
The S204MTR-K50 uses a K tripping characteristic, providing circuit protection suited to applications where higher starting currents can occur.
What is the breaking capacity of the S204MTR-K50?
The S204MTR-K50 has a rated breaking capacity of 10 kA.
How is the ABB S204MTR-K50 installed?
The S204MTR-K50 is designed for DIN-rail mounting in electrical distribution assemblies, control cabinets and railway equipment.
Trusted for Railway Electrical Protection
ABB S200MTR DC miniature circuit breakers are designed for dependable circuit protection in traction and rolling stock electrical installations, combining compact DIN-rail mounting with application-specific protection characteristics.
