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ABB S203MT-K3H10 MCB – S200M – 3P – K – 3A
ABB S203MT-K3H10 three-pole miniature circuit breaker with 3 A rated current and K curve tripping characteristic for reliable overload and short-circuit protection in industrial and railway applications.
Why Choose the ABB S203MT-K3H10 Miniature Circuit Breaker?
The ABB S203MT-K3H10 is a specialist three-pole miniature circuit breaker from the ABB System pro M compact S200MT series, designed for dependable circuit protection in demanding industrial, traction and railway applications. With a 3 A rated current and a K-curve tripping characteristic, it is suitable for low-current circuits with elevated inrush currents, including control transformers, inductive loads and specialist automation equipment.
The S200MT range is engineered for robust protection where compact installation, consistent tripping performance and reliable overcurrent protection are required. Its current-limiting design helps reduce fault energy, while separate thermal and electromechanical tripping mechanisms provide effective protection against overloads and short circuits.
With a three-pole configuration, compact modular construction and DIN rail mounting, the S203MT-K3H10 is well suited for control panels, rolling stock systems, industrial machinery and electrical distribution assemblies requiring reliable three-phase low-current protection.
Key Advantages
- Specialist ABB three-pole miniature circuit breaker.
- 3 A rated current for low-current protection circuits.
- K-curve characteristic for circuits with higher inrush currents.
- S200MT series designed for railway, traction and industrial applications.
- Current-limiting design helps reduce fault energy.
- DIN rail mounting for quick installation into electrical panels.
Key Features
- ABB System pro M compact S200MT series.
- Three-pole miniature circuit breaker.
- 3 A rated current.
- K tripping characteristic.
- Rated short-circuit capacity up to 10 kA.
- Thermal overload and electromagnetic short-circuit protection.
- Current-limiting construction for improved equipment protection.
- Compatible with ABB System pro M compact accessories.
Reliable Protection for Railway and Industrial Applications
The ABB S203MT-K3H10 automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect wiring, control equipment and connected devices. Its K-curve characteristic provides reliable protection for circuits with higher starting currents while helping to avoid unnecessary nuisance tripping.
Designed for traction and railway installations, the S200MT range also delivers dependable protection in industrial automation, OEM machinery and commercial electrical systems where compact, high-performance protection devices are required.
Typical Applications
- Railway and rolling stock electrical systems.
- Industrial control panels.
- Control transformer and inductive load protection.
- Automation and machine control equipment.
- OEM electrical assemblies.
- Low-current three-phase distribution systems.
Technical Specifications
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| Current | 3 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | K curve | |
| Breaking Capacity | 10 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S200MT | |
| Model | S203MT-K3H10 | |
| Product ID | 2CDV273006R0317 | |
| Product type | Miniature circuit breaker | |
| Number of poles | 3P | |
| Rated current | 3 A | |
| Tripping characteristic | K curve | |
| Rated operational voltage | 230 / 400 V AC | |
| Maximum rated voltage | 440 V AC | |
| Rated short-circuit capacity | 10 kA | |
| Frequency | 50 / 60 Hz | |
| Energy limiting class | 3 | |
| Mounting type | DIN rail | |
| Terminal type | Screw terminals | |
| Protection rating | IP20 | |
| Application | Low-current three-phase circuit protection |
Frequently Asked Questions
What is the ABB S203MT-K3H10 used for?
The ABB S203MT-K3H10 protects low-current three-phase electrical circuits against overloads and short circuits in industrial, railway and traction applications.
What current rating does the S203MT-K3H10 have?
The circuit breaker has a rated current of 3 A.
What does the K curve indicate?
The K-curve characteristic is suitable for circuits with higher inrush currents, including control transformers, inductive equipment and selected machinery circuits.
How many poles does the S203MT-K3H10 have?
The ABB S203MT-K3H10 is a three-pole miniature circuit breaker for three-phase circuit protection.
How is this miniature circuit breaker installed?
The breaker is designed for installation onto a standard 35 mm DIN rail inside electrical panels, switchboards and control cabinets.
Trusted by Electrical Professionals Worldwide
ABB S200MT miniature circuit breakers are trusted by railway engineers, panel builders and industrial professionals for dependable low voltage circuit protection in demanding environments.
