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2CDS272447R0487 ABB S202MTR-K20 20 A 2-Pole Type K Traction Miniature Circuit Breaker
ABB S202MTR-K20 is a 20 A 2-pole Type K miniature circuit breaker with 10 kA breaking capacity, designed for reliable overload and short-circuit protection in railway, rolling stock and traction electrical applications.
£231.85
Why Choose the ABB S202MTR-K20 Miniature Circuit Breaker?
The ABB S202MTR-K20 is a specialist 2-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding railway, rolling stock and traction electrical systems. Supplied under ABB order code 2CDS272447R0487, it combines a 20 A rated current, Type K tripping characteristic and 10 kA short-circuit breaking capacity in a robust modular design.
As part of the ABB S200 MTR series, the S202MTR-K20 is developed for specialist transportation applications where dependable circuit protection and secure electrical connections are essential. Its thermal-magnetic operating mechanism provides protection against both sustained overload conditions and high short-circuit fault currents.
The Type K characteristic is particularly suitable for circuits supplying inductive loads, motors and other equipment that can produce elevated starting currents. Its 2-pole configuration enables coordinated switching and protection of two conductors, making the S202MTR-K20 suitable for auxiliary, control and distribution circuits in demanding transportation equipment.
Key Advantages
- Specialist miniature circuit breaker for railway and traction applications.
- 20 A rated current for control, auxiliary and distribution circuits.
- 2-pole configuration for coordinated switching and protection.
- Type K tripping characteristic suited to inductive loads and elevated starting currents.
- 10 kA short-circuit breaking capacity for robust fault protection.
- Thermal-magnetic operation provides overload and short-circuit protection.
- Specialist S200 MTR construction for demanding transportation environments.
- Compact modular format for integration into electrical distribution assemblies.
Key Features
- ABB S200 MTR series miniature circuit breaker.
- 20 A rated current.
- 2-pole configuration.
- Type K tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Thermal overload protection.
- Electromagnetic short-circuit protection.
- Suitable for inductive loads with elevated starting currents.
- Modular construction for electrical distribution systems.
- Designed for railway, rolling stock and traction electrical applications.
Reliable Protection for Railway and Traction Circuits
Miniature circuit breakers such as the ABB S202MTR-K20 automatically interrupt an electrical circuit when excessive current occurs because of an overload or short circuit. The thermal element responds to prolonged overload conditions, while the electromagnetic mechanism provides rapid interruption of severe fault currents to help protect conductors and connected equipment.
The Type K characteristic provides increased tolerance of normal starting currents associated with inductive equipment while maintaining effective fault protection. This makes the S202MTR-K20 particularly useful for motors, transformers, control equipment and auxiliary loads within railway rolling stock, traction systems and other demanding electrical installations.
Typical Applications
- Railway rolling stock electrical systems.
- Traction and transportation equipment.
- Motor and inductive load circuits.
- On-board auxiliary and control circuits.
- Electrical distribution and control panels.
- Industrial circuits requiring robust 2-pole overcurrent protection.
Technical Specifications
| Series | S200 MTR |
|---|---|
| ABB order code | 2CDS272447R0487 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 20 A |
| Number of poles | 2 |
| Tripping characteristic | Type K |
| Short-circuit breaking capacity | 10 kA |
| Protection function | Overload and short-circuit protection |
| Operating principle | Thermal-magnetic |
| Product group | DC / Traction MCB |
Frequently Asked Questions
What is the ABB S202MTR-K20 used for?
The ABB S202MTR-K20 provides overload and short-circuit protection for electrical circuits, particularly in railway, rolling stock, traction and inductive-load applications.
What is the current rating of the S202MTR-K20?
The S202MTR-K20 has a rated current of 20 A.
How many poles does the ABB S202MTR-K20 have?
The S202MTR-K20 is a 2-pole miniature circuit breaker, providing coordinated switching and protection of two conductors.
What does the Type K characteristic mean?
The Type K tripping characteristic is particularly suited to inductive loads and circuits that experience elevated starting currents while still requiring dependable overload and short-circuit protection.
What is the breaking capacity of the ABB S202MTR-K20?
The S202MTR-K20 has a 10 kA short-circuit breaking capacity.
Trusted ABB Protection for Rolling Stock
ABB S200 MTR miniature circuit breakers provide dependable overload and short-circuit protection for demanding railway, rolling stock and traction electrical systems, combining robust circuit protection with specialist performance for transportation applications.
