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 S203MT-C50 MCB – S200M – 3P – C – 50A
ABB S203MT-C50 3-pole 50 A miniature circuit breaker with C characteristic tripping curve and 10 kA breaking capacity for railway, traction and industrial circuit protection.
£116.03
Why Choose the ABB S203MT-C50 Miniature Circuit Breaker?
The ABB S203MT-C50 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 is engineered for installations where dependable performance, compact design and compliance with railway sector requirements are essential.
This circuit breaker uses a delayed thermal tripping mechanism for overload protection and an electromagnetic tripping mechanism for short circuit protection. Its C characteristic tripping curve makes it suitable for circuits with moderate inrush currents, such as control panels, motors, transformers and auxiliary railway systems.
With a 50 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203MT-C50 provides strong protection for three-phase electrical circuits. Its DIN rail mounted format supports efficient installation in distribution boards, machine panels and rolling stock electrical systems.
Key Advantages
- Specialist 3-pole miniature circuit breaker for railway and industrial installations.
- 50 A rated current suitable for higher load three-phase circuits.
- C characteristic tripping curve for circuits with moderate inrush current.
- 10 kA short circuit breaking capacity for dependable protection.
- Designed for traction and rolling stock applications.
- Compact DIN rail mounting for fast panel installation.
Key Features
- ABB S200MT railway miniature circuit breaker series.
- 50 A rated current.
- 3-pole configuration.
- C characteristic tripping curve.
- 10 kA rated short circuit breaking 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 Railway and Industrial Systems
The ABB S200MT range is designed especially for traction and railway applications, providing dependable protection in electrical systems exposed to demanding operational conditions. These miniature circuit breakers help protect conductors, equipment and control circuits from damage caused by overloads and short circuits.
The C curve characteristic of the S203MT-C50 offers a balanced response for general purpose and moderately inductive loads. This makes it well suited for three-phase auxiliary systems, industrial panels and machinery circuits where safe disconnection and continuity of operation are both important.
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
Tick the specs you need, then view products that match.
| Current | 50 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | C curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S203MT-C50 | |
| Product type | Miniature circuit breaker (MCB) | |
| Product ID | 2CDS273006R0504 | |
| EAN | 4016779770293 | |
| Rated current | 50 A | |
| Number of poles | 3 | |
| Tripping characteristic | C | |
| Rated short circuit breaking capacity | 10 kA | |
| Rated operational voltage | 400 V AC according to IEC 60898-1 / 440 V AC according to IEC 60947-2 | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. | |
| 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-C50 used for?
The S203MT-C50 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-C50 has a 50 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-C50 have?
This model has a 3-pole configuration, making it suitable for three-phase circuit protection.
Is the ABB S203MT-C50 suitable for railway applications?
Yes, the S200MT range is designed especially for traction and railway applications, including rolling stock electrical systems.
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 protection, compact installation and long-term performance in demanding low voltage systems.
