ABB S203M-D63 3-pole 63A D curve miniature circuit breaker from the System pro M compact S200M series, designed for overload and short-circuit protection in commercial, industrial and high inrush three-phase electrical installations.
£123.97
The ABB S203M-D63 is a high quality 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed for reliable protection against overloads and short circuits, it is suitable for demanding commercial, industrial and three-phase electrical distribution applications.
This miniature circuit breaker features a D tripping characteristic, making it ideal for circuits with high inrush currents such as motors, transformers, welding equipment and inductive loads. Its current limiting design helps reduce fault energy, supporting safer operation and helping protect downstream cables and connected equipment.
With a rated current of 63 A, 3-pole configuration and 10 kA short-circuit breaking capacity, the ABB S203M-D63 provides robust protection in a compact DIN rail mounted format. It is compatible with ABB System pro M accessories, allowing flexible installation within distribution boards, switchgear and industrial control panels.
Miniature circuit breakers such as the ABB S203M-D63 automatically disconnect electrical circuits when overload or short-circuit conditions occur. This helps protect cables, equipment and electrical systems from damage while improving safety across commercial and industrial installations.
The D curve characteristic is particularly suited to electrical loads that experience high starting currents. This makes the S203M-D63 a strong choice for motor feeders, transformer circuits and industrial equipment where nuisance tripping must be minimised while maintaining dependable protection.
| Current | 63 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-D63 |
| Product type | Miniature circuit breaker (MCB) |
| Product ID | 2CDS273001R0631 |
| EAN | 4016779601399 |
| Rated current | 63 A |
| Number of poles | 3P |
| Tripping characteristic | D |
| 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 |
| Weight | approx. 0.38 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-D63 is used to protect three-phase electrical circuits against overloads and short circuits, particularly where high inrush currents are present.
The S203M-D63 has a rated current of 63 A, making it suitable for higher load three-phase circuits.
A D curve miniature circuit breaker is designed for circuits with high inrush current, such as motors, transformers, welding equipment and inductive loads.
The ABB S203M-D63 is a 3-pole miniature circuit breaker, suitable for three-phase circuit protection.
The ABB S203M-D63 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 dependable performance in demanding electrical systems.
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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...