ABB S203MT-K1H10 miniature circuit breaker from the S200MT series, a three-pole 1 A K-curve MCB designed for reliable overload and short-circuit protection in industrial, traction and control panel applications.
The ABB S203MT-K1H10 is a specialist three-pole miniature circuit breaker from the ABB System pro M compact S200MT series, designed for reliable circuit protection in demanding industrial, traction and railway-related electrical applications. With a 1 A rated current and K-curve tripping characteristic, it is suitable for circuits where controlled protection is required for loads with higher inrush currents.
The S200MT range is engineered for applications where robust performance, compact installation and dependable overcurrent protection are essential. Its current-limiting design helps reduce fault energy, while separate thermal and electromechanical tripping mechanisms provide protection against overloads and short circuits.
With a three-pole configuration, DIN rail mounting and compact modular construction, the S203MT-K1H10 is well suited for control panels, traction equipment, industrial machinery and electrical distribution systems requiring low-current three-phase protection.
Miniature circuit breakers such as the ABB S203MT-K1H10 help protect electrical circuits by automatically disconnecting the supply during overload or short-circuit conditions. The K-curve characteristic is commonly used where equipment may generate higher starting currents while still requiring accurate circuit protection.
The S200MT series is particularly suited to demanding installations where compact DIN rail mounting, dependable tripping performance and robust ABB construction are required. It can be integrated into control panels, traction systems and industrial electrical assemblies alongside other modular low voltage devices.
| Current | 1 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200MT |
| Model | S203MT-K1H10 |
| Product ID | 2CDV273006R0217 |
| EAN | 4016779771054 |
| Product type | Miniature circuit breaker |
| Number of poles | 3P |
| Rated current | 1 A |
| Tripping characteristic | K curve |
| Rated voltage | 400 V AC |
| Frequency | 50 / 60 Hz |
| Mounting type | DIN rail |
| Terminal type | Screw terminal |
| Protection function | Overload and short-circuit protection |
| Application | Low-current three-phase circuit protection |
The ABB S203MT-K1H10 is used to protect low-current three-phase electrical circuits against overloads and short circuits in industrial, traction and control panel applications.
The S203MT-K1H10 has a rated current of 1 A.
The K-curve characteristic is designed for circuits with higher inrush currents, making it suitable for selected inductive loads, control transformers and specialist industrial equipment.
The ABB S203MT-K1H10 is a three-pole miniature circuit breaker for three-phase circuit protection.
The breaker is designed for standard DIN rail mounting inside electrical panels, control cabinets and distribution boards.
ABB S200MT miniature circuit breakers are trusted by panel builders, rail engineers, OEMs and industrial electrical professionals for dependable low voltage circuit protection in demanding environments.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...