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ABB S201MT-K2 MCB – S200M – 1P – K – 2A
ABB S201MT-K2 single pole 2 A K curve miniature circuit breaker from the System pro M compact S200MT range, designed for reliable overload and short circuit protection in railway, control and industrial applications.
£53.80
Why Choose the ABB S201MT-K2 Miniature Circuit Breaker?
The ABB S201MT-K2 is a compact and reliable single pole miniature circuit breaker (MCB) from the ABB System pro M compact S200MT series. Designed for dependable overload and short circuit protection, this 2 A K curve MCB is especially suitable for electrical control, auxiliary and railway applications where compact protection and high breaking performance are required.
The S201MT-K2 uses ABB’s current limiting technology with a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for short circuit protection. This helps reduce fault energy during short circuit events while maintaining reliable circuit protection in demanding installations.
With a 2 A rated current, K tripping characteristic and 10 kA breaking capacity, the ABB S201MT-K2 is ideal for control circuits, railway systems, signalling equipment, automation panels and circuits with moderate inrush currents. Its compact DIN rail mounting format allows easy installation inside distribution boards, switchboards and industrial control panels.
Key Advantages
- Compact single pole miniature circuit breaker.
- 2 A rated current for low current circuit protection.
- K curve tripping characteristic for circuits with moderate inrush current.
- 10 kA breaking capacity for dependable short circuit protection.
- Current limiting design helps reduce fault energy.
- Thermal overload and electromechanical short circuit protection.
- DIN rail mounting for quick installation in panels and boards.
- Suitable for railway, industrial and automation applications.
Key Features
- ABB System pro M compact S200MT series.
- Single pole (1P) configuration.
- 2 A rated current.
- K curve tripping characteristic.
- 10 kA rated short circuit breaking capacity.
- Current limiting class 3.
- Delayed thermal tripping mechanism for overload protection.
- Electromechanical tripping mechanism for short circuit protection.
- Compact modular width for DIN rail installations.
Reliable Protection for Railway and Control Circuits
Miniature circuit breakers such as the ABB S201MT-K2 automatically disconnect the circuit during overload or short circuit conditions. The thermal trip element responds to sustained overloads, while the magnetic trip element reacts quickly to short circuit faults.
The K curve characteristic is suitable for circuits with higher starting or inrush currents than standard B curve applications, while still providing reliable protection for cables and equipment. As part of ABB’s S200MT range, the S201MT-K2 is well suited to railway installations, control equipment and industrial automation systems.
Typical Applications
- Railway electrical systems.
- Control and auxiliary circuits.
- Industrial automation panels.
- Signalling and monitoring equipment.
- Machine building applications.
- Distribution boards and switchgear assemblies.
Technical Specifications
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| Current | 2 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200MT | |
| Model | S201MT-K2 | |
| MPN | 2CDS271445R0277 | |
| EAN | 4016779125901 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 2 A | |
| Number of poles | 1P | |
| Tripping characteristic | K | |
| Rated operational voltage | 230/400 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity | 10 kA | |
| Current limiting class | 3 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Width | 17.5 mm | |
| Dimensions (H × W × D) | 88 × 17.5 × 69 mm | |
| Weight | approx. 0.125 kg | |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201MT-K2 used for?
The S201MT-K2 is used to protect electrical circuits against overloads and short circuits, especially in control, auxiliary, railway and industrial automation applications.
What is the rated current of the ABB S201MT-K2?
The ABB S201MT-K2 has a rated current of 2 A.
What does the K curve characteristic mean?
A K curve MCB is designed for circuits with moderate to higher inrush currents, making it suitable for control circuits, transformers, motors and industrial equipment.
How many poles does the S201MT-K2 have?
The ABB S201MT-K2 is a single pole (1P) miniature circuit breaker.
Where is this circuit breaker typically installed?
It is designed for DIN rail installation inside distribution boards, railway equipment, switchboards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact S200MT miniature circuit breakers are trusted by electrical engineers, railway specialists and panel builders for reliable protection, compact installation and long-term operational performance.
