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ABB S201MT-K50NAH10 MCB – S200M – 1P+N – K – 50A
ABB S201MT-K50NAH10 2-pole miniature circuit breaker with a 50 A rating, K tripping characteristic and 10 kA breaking capacity for railway and industrial circuit protection.
Why Choose the ABB S201MT-K50NAH10 Miniature Circuit Breaker?
The ABB S201MT-K50NAH10 is a premium miniature circuit breaker (MCB) from the ABB S200MT railway series, developed to provide reliable overload and short circuit protection in demanding industrial, traction and rolling stock applications. Designed for high reliability, it combines ABB's proven thermal magnetic protection with a compact DIN rail mounted design for simple installation.
The ABB S200MT range is specifically engineered for harsh operating environments where dependable circuit protection and long service life are essential. Its robust construction, excellent vibration resistance and compatibility with ABB System pro M compact accessories make it an excellent choice for railway vehicles, industrial machinery and OEM electrical equipment.
Featuring a 50 A rated current, K tripping characteristic and 10 kA breaking capacity, the S201MT-K50NAH10 is ideal for protecting motors, transformers and inductive loads with higher inrush currents while maintaining dependable circuit protection.
Key Advantages
- Reliable ABB miniature circuit breaker for railway and industrial installations.
- 50 A rated current for higher power circuits.
- K tripping characteristic suitable for motors and inductive loads.
- 2-pole configuration for enhanced circuit isolation.
- 10 kA breaking capacity for dependable fault protection.
- Compact DIN rail mounted design for control panels and distribution boards.
Key Features
- ABB S200MT railway series.
- 50 A rated current.
- K tripping characteristic.
- 2-pole miniature circuit breaker.
- 10 kA short circuit breaking capacity.
- Thermal magnetic overload and short circuit protection.
- Suitable for industrial, railway and traction systems.
- Compatible with ABB System pro M compact accessories.
Reliable Protection for Industrial and Railway Systems
The ABB S201MT-K50NAH10 combines delayed thermal protection for overload conditions with rapid magnetic tripping during short circuit faults. This dual protection helps safeguard equipment, minimise downtime and improve the reliability of electrical installations.
Its K curve characteristic is particularly suited to motors, transformers and inductive loads where higher starting currents are expected. The compact design allows efficient use of enclosure space while maintaining dependable protection in demanding railway and industrial environments.
Typical Applications
- Railway and rolling stock electrical systems.
- Industrial control panels.
- Motor protection circuits.
- Transformer protection.
- Machine building and OEM equipment.
- Industrial power distribution systems.
Technical Specifications
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole + N | |
| Current | 50 A | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-K50NAH10 | |
| MPN | 2CDV271106R0577 | |
| Product type | Miniature circuit breaker | |
| Rated current | 50 A | |
| Number of poles | 2 | |
| Tripping characteristic | K | |
| Breaking capacity | 10 kA | |
| Rated operational voltage | Up to 253 V AC | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
Frequently Asked Questions
What is the ABB S201MT-K50NAH10 used for?
It protects electrical circuits against overloads and short circuits in railway, traction and industrial electrical systems.
What is the rated current?
This miniature circuit breaker has a 50 A rated current.
What does the K tripping characteristic provide?
The K characteristic allows higher inrush currents, making it suitable for motors, transformers and other inductive loads.
How many poles does this circuit breaker have?
The S201MT-K50NAH10 is a 2-pole miniature circuit breaker.
How is the breaker installed?
It is designed for installation on a standard 35 mm DIN rail inside industrial control panels and distribution boards.
Trusted by Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway operators, panel builders and industrial engineers worldwide for dependable circuit protection, robust construction and long operational life.
