ABB S203MC10-1 three-pole miniature circuit breaker with a 10 A rating, C tripping characteristic and 10 kA breaking capacity for commercial and industrial electrical protection.
£99.76
The ABB S203MC10-1 is a high-performance three-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in commercial, industrial and OEM electrical installations. Part of the proven ABB System pro M compact S200M series, it combines reliable circuit protection with a compact modular design for modern electrical distribution systems.
Featuring both a delayed thermal tripping mechanism for overload protection and an electromechanical tripping mechanism for rapid short-circuit interruption, the S203MC10-1 delivers reliable protection in demanding environments. Its C tripping characteristic makes it ideal for protecting general-purpose power circuits, lighting installations and equipment with moderate inrush currents.
With a rated current of 10 A, a three-pole configuration and a 10 kA rated short-circuit capacity, the S203MC10-1 is well suited for residential, commercial and industrial distribution systems. Its DIN rail mounting and compatibility with ABB accessories simplify installation and future expansion.
The ABB S203MC10-1 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, equipment and personnel. Its current-limiting design minimises the energy released during fault conditions, reducing potential damage to connected equipment.
Its C-curve characteristic makes it particularly suitable for general electrical distribution, lighting circuits, socket outlets, HVAC equipment and control systems where moderate inrush currents are expected.
| Current | 10 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203MC10-1 |
| Product type | Miniature circuit breaker |
| Rated current | 10 A |
| Number of poles | 3 |
| Tripping characteristic | C curve |
| Rated operational voltage | 400 V AC |
| Maximum operational voltage | 440 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity (Icn) | 10 kA |
| Rated ultimate breaking capacity (Icu) | 15 kA |
| Rated insulation voltage | 440 V |
| Rated impulse withstand voltage | 4 kV |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Terminal type | Screw terminals |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Dimensions (H × W × D) | approximately 88 × 52.5 × 69 mm |
| Weight | approximately 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203MC10-1 protects three-phase electrical circuits against overloads and short circuits in commercial, industrial and OEM applications.
The circuit breaker has a rated current of 10 A.
The C-curve is suitable for circuits with moderate inrush currents, including lighting, HVAC systems, general power distribution and small motors.
The circuit breaker provides a 10 kA rated short-circuit capacity and a 15 kA ultimate breaking capacity according to applicable IEC standards.
The S203MC10-1 is designed for installation on a standard 35 mm DIN rail inside electrical switchboards and distribution panels.
ABB System pro M compact S200M miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial automation engineers for reliable circuit protection, high breaking capacity and long service life.
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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...