Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
ABB S201MT-K50 MCB – S200M – 1P – K – 50A
ABB S201MT-K50 miniature circuit breaker with 50 A rated current, K tripping characteristic, single-pole configuration and 10 kA breaking capacity for industrial, commercial and railway applications.
£57.58
Why Choose the ABB S201MT-K50 Miniature Circuit Breaker?
The ABB S201MT-K50 is a robust miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial, commercial, railway and traction applications. As part of the trusted ABB S200MT series, this single-pole circuit breaker combines compact dimensions with high performance for demanding electrical installations.
Featuring a K tripping characteristic, the S201MT-K50 is well suited to circuits with higher inrush currents, including motors, transformers, solenoids and other inductive loads. Its thermal overload and electromagnetic short-circuit trip mechanisms provide reliable protection while helping reduce nuisance tripping during equipment start-up.
With a 50 A rated current, 10 kA rated short-circuit breaking capacity and compatibility with ABB System pro M compact accessories, the ABB S201MT-K50 is a dependable choice for panel builders, OEMs and industrial automation professionals.
Key Advantages
- Compact single-pole miniature circuit breaker for industrial and railway applications.
- 50 A rated current for reliable circuit protection.
- K tripping characteristic designed for higher inrush current loads.
- 10 kA breaking capacity for demanding electrical installations.
- Thermal overload and electromagnetic short-circuit protection.
- Compatible with ABB auxiliary contacts and modular accessories.
Key Features
- ABB S200MT miniature circuit breaker series.
- 50 A rated current.
- K tripping characteristic.
- Single-pole (1P) configuration.
- 10 kA rated short-circuit breaking capacity.
- Current-limiting design for enhanced protection.
- DIN rail mounting for fast installation.
- High mechanical and electrical endurance.
Reliable Circuit Protection for Demanding Installations
The ABB S201MT-K50 combines delayed thermal overload protection with rapid electromagnetic short-circuit protection to safeguard electrical circuits and connected equipment. The K tripping characteristic provides increased tolerance for temporary inrush currents while ensuring rapid fault disconnection when required.
Designed for industrial and railway applications, the S200MT range supports demanding low-voltage installations where reliable switching, compact panel design and long service life are essential.
Typical Applications
- Industrial control panels.
- Motor and transformer circuits.
- Railway and traction electrical systems.
- OEM machinery.
- Automation equipment.
- Commercial electrical distribution boards.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 50 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT Miniature Circuit Breakers | |
| Model | S201MT-K50 | |
| Manufacturer part number | 2CDS271445R0577 | |
| EAN | 4016779126069 | |
| Product type | Miniature Circuit Breaker (MCB) | |
| Rated current | 50 A | |
| Number of poles | 1 | |
| Tripping characteristic | K | |
| Rated operational voltage | 230 / 400 V AC | |
| Voltage type | AC | |
| Frequency | 50 / 60 Hz | |
| Rated short-circuit breaking capacity | 10 kA | |
| Rated ultimate short-circuit breaking capacity | 15 kA | |
| Rated service short-circuit breaking capacity | 7.5 kA | |
| Rated insulation voltage | 440 V | |
| Rated impulse withstand voltage | 4 kV | |
| Power loss | 4.1 W | |
| Current limiting class | 3 | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Built-in depth | approx. 69 mm | |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 69 mm | |
| Weight | approx. 0.125 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S201MT-K50 used for?
The ABB S201MT-K50 protects electrical circuits against overloads and short circuits in industrial, railway, commercial and automation applications.
What is the rated current of the ABB S201MT-K50?
The ABB S201MT-K50 has a 50 A rated current.
What does the K tripping characteristic mean?
The K characteristic is designed for circuits with higher inrush currents, making it suitable for motors, transformers, solenoids and other inductive loads.
What is the short-circuit breaking capacity?
The ABB S201MT-K50 provides a 10 kA rated short-circuit breaking capacity with a rated ultimate breaking capacity of 15 kA.
How is the ABB S201MT-K50 installed?
The circuit breaker is designed for installation onto a standard DIN rail inside electrical distribution boards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB S200MT miniature circuit breakers are trusted by panel builders, railway engineers and industrial automation professionals for dependable protection, long service life and consistent performance in demanding applications.
