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2CDS272445R0205 ABB S202MT-B20 MCB 10kA 2P Type B 20A
ABB S202MT-B20 is a 20 A 2-pole B-characteristic miniature circuit breaker with 10 kA short-circuit breaking capacity, designed for reliable circuit protection in demanding railway, traction and industrial applications.
£64.43
Why Choose the ABB S202MT-B20 Miniature Circuit Breaker?
The ABB S202MT-B20 is a specialised 2-pole miniature circuit breaker (MCB) designed to provide reliable overload and short-circuit protection in demanding railway, traction and industrial electrical systems. As part of the ABB S200MT miniature circuit breaker series, it combines a 20 A rated current with a B tripping characteristic and a high 10 kA short-circuit breaking capacity.
Developed for demanding transportation environments, the S202MT-B20 protects cables and conductors against overload and short-circuit conditions. Its B characteristic provides sensitive magnetic tripping for circuits with relatively low starting currents, making it particularly suitable for auxiliary, control, resistive and other lower-inrush electrical loads.
With a rated current of 20 A, a 2-pole configuration and 10 kA breaking capacity, the S202MT-B20 provides dependable circuit protection in a compact DIN rail format. ABB order code 2CDS272445R0205 identifies this specific B-characteristic 20 A version within ABB's traction MCB portfolio.
Key Advantages
- Specialised miniature circuit breaker for railway and traction applications.
- 20 A rated current with a 2-pole configuration.
- B tripping characteristic suited to circuits with relatively low starting currents.
- 10 kA short-circuit breaking capacity for dependable fault protection.
- Protects cables and conductors against overload and short-circuit conditions.
- Compact DIN rail construction for straightforward integration into electrical distribution panels.
Key Features
- ABB S200MT miniature circuit breaker series.
- 20 A rated current.
- 2-pole configuration.
- B tripping characteristic.
- 10 kA short-circuit breaking capacity.
- Designed for demanding railway and traction circuit protection.
- Suitable for circuits where high normal inrush currents are not expected.
- Compact modular construction for DIN rail installation.
Reliable Circuit Protection for Railway and Traction Systems
Miniature circuit breakers such as the ABB S202MT-B20 automatically disconnect an electrical circuit when excessive current occurs because of an overload or short circuit. This helps protect cables, conductors and connected electrical equipment while allowing the circuit breaker to be reset after the electrical fault has been identified and corrected.
The ABB S200MT range is developed for demanding transportation electrical systems where reliable protection and robust construction are essential. The B characteristic provides comparatively sensitive magnetic operation, making the S202MT-B20 particularly suitable for auxiliary, control, resistive and distribution circuits where substantial normal starting-current peaks are not expected.
Typical Applications
- Railway and rolling stock electrical systems.
- Traction electrical installations.
- Auxiliary and control circuits.
- Resistive and lower-inrush electrical loads.
- Industrial control panels and switchgear.
- Transportation and automation electrical systems.
Technical Specifications
| Series | S200MT |
|---|---|
| ABB order code | 2CDS272445R0205 |
| Product type | Miniature circuit breaker (MCB) |
| Product group | DC / Traction MCB |
| Rated current | 20 A |
| Number of poles | 2 |
| Tripping characteristic | B |
| Rated short-circuit breaking capacity | 10 kA |
| Mounting type | DIN rail |
Frequently Asked Questions
What is the ABB S202MT-B20 used for?
The ABB S202MT-B20 is a miniature circuit breaker designed to protect electrical circuits against overload and short-circuit currents in demanding railway, traction and industrial applications.
What is the current rating of the S202MT-B20?
The S202MT-B20 has a rated current of 20 A and uses a 2-pole configuration.
What does the B characteristic mean?
The B tripping characteristic provides relatively sensitive magnetic short-circuit protection and is generally suited to circuits with low or moderate normal inrush currents, including many auxiliary, control and resistive loads.
What is the breaking capacity of the ABB S202MT-B20?
The S202MT-B20 has a 10 kA short-circuit breaking capacity, providing robust fault protection for demanding electrical installations.
Is the ABB S202MT-B20 suitable for railway and traction applications?
Yes. The S202MT-B20 belongs to ABB's S200MT range and is intended for demanding railway and traction electrical systems where dependable overload and short-circuit protection is required.
Trusted Circuit Protection from ABB
ABB S200MT miniature circuit breakers provide dependable overload and short-circuit protection for demanding railway and transportation electrical systems, combining high breaking capacity with robust construction for traction applications.
