ABB S203M-C63 3-pole 63A C curve miniature circuit breaker from the System pro M compact S200M series, designed for overload and short-circuit protection in commercial, industrial and three-phase electrical installations.
£113.09
The ABB S203M-C63 is a robust and reliable 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed to protect electrical circuits against overloads and short circuits, it provides dependable performance for commercial, industrial and high-demand distribution applications.
This miniature circuit breaker features a C tripping characteristic, making it suitable for circuits with moderate inrush currents such as motor circuits, transformers, lighting groups and general power distribution. Its current limiting design helps reduce fault energy, improving system safety and helping protect downstream cables and equipment.
With a rated current of 63 A, a 3-pole configuration and a 10 kA short-circuit breaking capacity, the ABB S203M-C63 is ideal for three-phase electrical installations where reliable circuit protection and ABB build quality are required. Its DIN rail mounted design allows straightforward integration into distribution boards and control panels.
Miniature circuit breakers such as the ABB S203M-C63 automatically disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, equipment and electrical systems from damage while supporting safer operation across commercial and industrial installations.
The S200M series is widely specified by electrical contractors, panel builders and industrial engineers due to its compact construction, high breaking capacity and compatibility with ABB System pro M accessories. Its 3-pole format makes it particularly suitable for protecting three-phase circuits in distribution and control applications.
| Current | 63 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-C63 |
| Product type | Miniature circuit breaker (MCB) |
| Product ID | 2CDS273001R0634 |
| EAN | 4016779544009 |
| Rated current | 63 A |
| Number of poles | 3P |
| Tripping characteristic | C |
| Rated operational voltage | 230 / 400 V AC |
| Rated insulation voltage | 440 V |
| 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 |
| Weight | approx. 0.37 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-C63 is used to protect electrical circuits against overloads and short circuits in commercial, industrial and three-phase distribution applications.
The S203M-C63 has a rated current of 63 A, making it suitable for higher load electrical circuits.
A C curve miniature circuit breaker is designed for circuits with moderate inrush current, such as motors, transformers, lighting groups and general distribution loads.
The ABB S203M-C63 is a 3-pole miniature circuit breaker, suitable for three-phase circuit protection.
The ABB S203M-C63 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...