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ABB S203MT-K32 MCB – S200M – 3P – K – 32A
ABB S203MT-K32 3-pole 32 A K curve miniature circuit breaker with 10 kA breaking capacity for traction, railway and industrial circuit protection.
£159.74
Why Choose the ABB S203MT-K32 Miniature Circuit Breaker?
The ABB S203MT-K32 is a heavy-duty 3-pole miniature circuit breaker (MCB) engineered to provide dependable overload and short-circuit protection in demanding electrical installations. As part of the specialist ABB S200MT range, it has been specifically developed for traction, railway and industrial applications where reliability and safety are critical.
Featuring a K tripping characteristic, the S203MT-K32 is ideal for circuits with high inrush currents, helping to minimise nuisance tripping while maintaining reliable protection. It is particularly suited to motor circuits, transformers, inductive loads and industrial automation systems.
With a 32 A rated current, 3-pole configuration and 10 kA short-circuit breaking capacity, the ABB S203MT-K32 provides robust protection for three-phase electrical systems. Its DIN rail mounting format and compatibility with ABB System pro M compact accessories make installation straightforward in modern electrical panels.
Key Advantages
- 3-pole miniature circuit breaker for three-phase circuit protection.
- 32 A rated current suitable for industrial distribution and motor circuits.
- K curve tripping characteristic for high inrush current applications.
- 10 kA breaking capacity for demanding installations.
- Designed specifically for traction, railway and industrial environments.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB S203MT-K32 miniature circuit breaker.
- S200MT series modular protection device.
- 3 protected poles.
- 32 A rated current.
- K characteristic trip curve.
- 10 kA rated short-circuit capacity.
- Thermal-magnetic tripping for overload and short-circuit protection.
- DIN rail mounting for electrical distribution boards and control panels.
Reliable Protection for Industrial Three-Phase Circuits
The ABB S203MT-K32 automatically disconnects electrical circuits during overload and short-circuit conditions, helping protect cables, equipment and connected machinery. Its current-limiting design reduces fault energy and contributes to improved electrical safety.
Designed specifically for railway rolling stock and industrial installations, the S200MT range complies with recognised international standards while delivering dependable performance in demanding operating environments.
Typical Applications
- Railway and rolling stock electrical systems.
- Industrial motor control circuits.
- Three-phase distribution boards.
- Machine building and OEM equipment.
- Transformer and inductive load protection.
- Industrial automation and control panels.
Technical Specifications
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| Current | 32 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | S200MT | |
| Model | S203MT-K32 | |
| Product ID | 2CDS273445R0537 | |
| EAN | 4016779126724 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3P | |
| Protected poles | 3 | |
| Rated current | 32 A | |
| Tripping characteristic | K curve | |
| Rated short-circuit capacity | 10 kA | |
| Rated ultimate short-circuit capacity (Icu) | 15 kA | |
| Rated insulation voltage | 440 V | |
| Rated operational voltage | 400 V AC | |
| Rated impulse withstand voltage | 4 kV | |
| Frequency | 50 / 60 Hz | |
| Protection rating | IP20 | |
| Pollution degree | 3 | |
| Overvoltage category | III | |
| Mounting type | DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm | |
| Weight | approx. 0.38 kg | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S203MT-K32 used for?
The ABB S203MT-K32 protects three-phase electrical circuits against overloads and short circuits in traction, railway and industrial installations.
What is the rated current of the ABB S203MT-K32?
The S203MT-K32 has a rated current of 32 A.
How many poles does the S203MT-K32 have?
This miniature circuit breaker has a 3-pole configuration with three protected poles.
What does the K curve mean on this breaker?
The K curve tripping characteristic is designed for circuits with higher inrush currents, making it suitable for motors, transformers and other inductive loads.
Where is the ABB S203MT-K32 typically installed?
It is typically installed on a DIN rail inside industrial control panels, switchboards and electrical distribution boards.
Trusted by Electrical Engineers Worldwide
ABB S200MT miniature circuit breakers are trusted by railway engineers, panel builders and industrial electricians for dependable circuit protection in demanding applications.
