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2CDS272065R0487 ABB S202MT-K20UC 20A 2-Pole Type K 10kA Miniature Circuit Breaker
ABB S202MT-K20UC is a 20 A 2-pole Type K miniature circuit breaker with 10 kA breaking capacity for reliable overload and short-circuit protection in demanding AC/DC, traction and industrial electrical systems.
£221.22
Why Choose the ABB S202MT-K20UC Miniature Circuit Breaker?
The ABB S202MT-K20UC is a high-performance 2-pole miniature circuit breaker (MCB) developed for demanding rolling-stock, traction and industrial electrical installations. It combines a 20 A rated current, Type K tripping characteristic and 10 kA short-circuit breaking capacity to provide reliable protection against overloads and short circuits.
The S202MT-K20UC is suitable for AC and DC applications and uses ABB’s Type K characteristic, making it particularly appropriate for circuits where equipment can produce elevated starting or inrush currents. Both poles are protected, providing coordinated circuit protection in a compact DIN-rail device.
ABB order code 2CDS272065R0487 identifies this exact S202MT-K20UC configuration. Its robust traction-focused design, 440 V rated voltage, wide operating temperature range and conductor capacity up to 35 mm² make it a versatile protective device for transportation, control and industrial distribution systems.
Key Advantages
- 20 A miniature circuit breaker for dependable overload and short-circuit protection.
- 2-pole configuration with both poles protected.
- Type K tripping characteristic suited to circuits with elevated starting and inrush currents.
- 10 kA short-circuit breaking capacity at 230/400 V.
- Flexible AC/DC operation for traction and industrial systems.
- Designed for demanding rolling-stock electrical installations.
Key Features
- ABB S200MT UC series miniature circuit breaker.
- 20 A rated current.
- 2 poles, both protected.
- Type K tripping characteristic.
- 10 kA rated short-circuit breaking capacity.
- 440 V rated voltage.
- Suitable for AC/DC operation.
- 4 kV rated impulse withstand voltage.
- 50–60 Hz frequency range for AC operation.
- IP20 degree of protection at the terminals.
- Energy limiting class 3.
- DIN-rail mounting with connection capacity up to 35 mm².
Reliable Circuit Protection for Traction and Industrial Systems
Miniature circuit breakers such as the ABB S202MT-K20UC automatically disconnect a circuit when excessive current results from an overload or short circuit. Thermal and magnetic tripping provide protection against sustained overcurrents and high fault currents, helping safeguard cables, conductors and connected electrical equipment.
The ABB S200MT UC range combines high short-circuit breaking capacity with flexible AC/DC operation and construction intended for rolling-stock applications. The Type K characteristic makes the S202MT-K20UC particularly useful for circuits containing inductive equipment or other loads with elevated starting currents, while its compact modular construction enables straightforward integration into control and distribution panels.
Typical Applications
- Railway and rolling-stock electrical systems.
- Traction auxiliary electrical circuits.
- Industrial AC/DC distribution systems.
- Electrical control panels and switchboards.
- Machine and automation control circuits.
- Inductive loads and circuits with elevated starting or inrush currents.
Technical Specifications
| Series | S200MT UC |
|---|---|
| ABB order code | 2CDS272065R0487 |
| EAN / GTIN | 4013614449277 |
| Product type | Miniature circuit breaker (MCB) |
| Application group | DC / Traction MCB |
| Number of poles | 2 |
| Number of protected poles | 2 |
| Rated current | 20 A |
| Tripping characteristic | Type K |
| Rated voltage | 440 V |
| Rated insulation voltage | 440 V |
| Voltage type | AC/DC |
| Rated short-circuit breaking capacity | 10 kA |
| Rated impulse withstand voltage | 4 kV |
| Frequency | 50–60 Hz |
| Energy limiting class | 3 |
| Overvoltage category | III |
| Pollution degree | 3 |
| Power loss | 6.14 W |
| Protection rating | IP20 |
| Solid conductor connection | 0.75–35 mm² |
| Multi-wired conductor connection | 0.75–25 mm² |
| Operating ambient temperature | -40 to +70 °C |
| Width | 35 mm / 2 modular units |
| Height | 88 mm |
| Depth | 69 mm |
| Mounting type | DIN rail |
| Weight | approx. 0.25 kg |
Frequently Asked Questions
What is the ABB S202MT-K20UC used for?
The ABB S202MT-K20UC is a miniature circuit breaker designed to protect AC/DC electrical circuits against overloads and short circuits, particularly in traction, industrial and control applications.
What is the rated current of the S202MT-K20UC?
The S202MT-K20UC has a rated current of 20 A.
What does the Type K characteristic mean?
The Type K tripping characteristic is suited to circuits with elevated short-duration starting and inrush currents, making it useful for inductive loads while maintaining reliable overload and short-circuit protection.
What is the breaking capacity of the ABB S202MT-K20UC?
The S202MT-K20UC has a rated short-circuit breaking capacity of 10 kA at 230/400 V.
Is the ABB S202MT-K20UC suitable for traction applications?
Yes. The S202MT-K20UC belongs to ABB’s S200MT UC range, developed for demanding rolling-stock and traction electrical installations as well as industrial AC/DC applications.
Trusted ABB Circuit Protection
ABB S200MT UC miniature circuit breakers provide robust, compact AC/DC circuit protection for demanding industrial and transportation electrical systems, with Type K variants suited to loads that can produce elevated starting currents.
