ABB S203M-C4 3-pole 4A C curve miniature circuit breaker from the System pro M compact S200M series, designed for overload and short-circuit protection in commercial, industrial and residential electrical installations.
£109.99
The ABB S203M-C4 is a compact and reliable 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed for dependable protection against overloads and short circuits, it is suitable for residential, commercial and industrial electrical installations where high quality circuit protection is required.
This miniature circuit breaker features a C tripping characteristic, making it suitable for circuits with moderate inrush currents such as small motors, control transformers, lighting groups and general distribution circuits. The current limiting design helps reduce fault energy, improving installation safety and helping protect connected equipment.
With a rated current of 4 A, 3-pole configuration and 10 kA short-circuit breaking capacity, the ABB S203M-C4 provides robust performance in a compact DIN rail mounted format. It is compatible with ABB System pro M accessories, allowing flexible use in distribution boards and control panels.
Miniature circuit breakers such as the ABB S203M-C4 automatically disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, equipment and installations from damage while improving overall electrical safety.
The S200M series is widely used by electrical contractors, panel builders and industrial engineers due to its compact design, high breaking capacity and compatibility with ABB System pro M accessories. Its DIN rail format makes it straightforward to install in modern electrical distribution systems.
| Current | 4 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-C4 |
| Product type | Miniature circuit breaker (MCB) |
| Product ID | 2CDS273001R0044 |
| EAN | 4016779550406 |
| Rated current | 4 A |
| Number of poles | 3P |
| Tripping characteristic | C |
| Rated operational voltage | 230 / 400 V AC |
| Frequency | 50 / 60 Hz |
| Rated short-circuit capacity | 10 kA |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-C4 is used to protect electrical circuits against overloads and short circuits in commercial, industrial and residential installations.
The S203M-C4 has a rated current of 4 A, making it suitable for low current electrical circuits and control applications.
A C curve miniature circuit breaker is designed for circuits with moderate inrush current, such as lighting, small motors, transformers and general distribution loads.
The ABB S203M-C4 is a 3-pole miniature circuit breaker, suitable for three-phase circuit protection.
The ABB S203M-C4 has a rated short-circuit breaking capacity of 10 kA.
ABB System pro M compact miniature circuit breakers are trusted by electrical contractors, panel builders and industrial engineers for reliable circuit protection, compact installation and long-term performance in demanding electrical systems.
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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...