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ABB S201MT-K3NA MCB – S200M – 1P+N – K – 3A
ABB S201MT-K3NA miniature circuit breaker featuring 3 A rated current, K characteristic, 1P+N configuration and 10 kA breaking capacity for railway and traction applications.
£110.77
Why Choose the ABB S201MT-K3NA Miniature Circuit Breaker?
The ABB S201MT-K3NA is a premium 1P+N miniature circuit breaker (MCB) engineered specifically for traction, railway and transport applications. As part of the specialist ABB S200MT series, it delivers dependable overload and short circuit protection for demanding rolling stock and railway infrastructure installations.
Designed using ABB's advanced thermal and magnetic tripping technology, the S201MT-K3NA combines delayed thermal overload protection with rapid electromechanical short circuit interruption. Its K characteristic is ideal for circuits with higher inrush currents, making it suitable for transformers, relays, contactors and inductive loads commonly found within industrial and railway electrical systems.
Featuring a 3 A rated current, K characteristic trip curve and a 10 kA rated short circuit breaking capacity, the ABB S201MT-K3NA provides reliable circuit protection whilst remaining fully compatible with ABB System pro M compact accessories for additional monitoring and control functionality.
Key Advantages
- Designed specifically for railway and traction applications.
- 3 A rated current for low current power and control circuits.
- K characteristic suitable for circuits with higher inrush currents.
- 10 kA rated breaking capacity for dependable fault protection.
- Current limiting Class 3 performance reduces fault energy.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB S200MT miniature circuit breaker series.
- 1P+N configuration.
- 3 A rated current.
- K characteristic thermal magnetic tripping.
- 10 kA rated short circuit breaking capacity.
- 15 kA ultimate breaking capacity (Icu).
- DIN rail mounting.
- Compatible with auxiliary contacts, shunt trips and undervoltage releases.
Reliable Circuit Protection for Railway Electrical Systems
The ABB S200MT range has been engineered specifically for demanding railway and transport environments where dependable electrical protection is essential. The combination of thermal overload protection and instantaneous magnetic tripping safeguards electrical equipment from overloads and short circuits whilst maintaining reliable operation.
Its K characteristic makes the S201MT-K3NA particularly suitable for circuits supplying transformers, relays, contactors and inductive loads where higher inrush currents occur during normal operation, reducing nuisance tripping whilst maintaining effective fault protection.
Typical Applications
- Railway rolling stock.
- Traction power systems.
- Control panels and switchboards.
- Transformer protection.
- Industrial control equipment.
- Auxiliary electrical circuits.
Technical Specifications
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| Current | 3 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole + N | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S201MT-K3NA | |
| Product ID | 2CDS271106R0317 | |
| Product type | Miniature circuit breaker | |
| Rated current | 3 A | |
| Trip characteristic | K | |
| Number of poles | 1P+N | |
| Protected poles | 1 | |
| Rated operational voltage | 230 V AC | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Rated short circuit breaking capacity | 10 kA | |
| Rated ultimate breaking capacity (Icu) | 15 kA | |
| Rated service breaking capacity (Ics) | 11.3 kA | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm | |
| Weight | approx. 0.25 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201MT-K3NA used for?
The S201MT-K3NA protects electrical circuits against overloads and short circuits in railway, traction and industrial control applications.
What is the rated current?
This miniature circuit breaker has a 3 A rated current.
What does the K characteristic mean?
The K characteristic is designed for circuits with higher inrush currents, making it suitable for transformers, relays, motors and other inductive loads.
What is the breaking capacity?
The S201MT-K3NA provides a 10 kA rated short circuit breaking capacity and a 15 kA ultimate breaking capacity.
How is the circuit breaker installed?
The breaker is designed for installation on a standard 35 mm DIN rail inside electrical distribution boards and control panels.
Trusted by Railway and Industrial Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted worldwide for delivering dependable circuit protection, long service life and reliable performance in demanding railway and industrial electrical installations.
