ABB S203P-B63 three-pole miniature circuit breaker with 63 A rated current and B curve tripping characteristic for reliable overload and short-circuit protection in commercial and industrial installations.
The ABB S203P-B63 is a premium three-pole miniature circuit breaker from the ABB System pro M compact S200P series, designed to provide dependable overload and short-circuit protection for commercial and industrial electrical installations. Featuring a 63 A rated current and a B-curve tripping characteristic, it is ideally suited to circuits with low inrush currents, including lighting, heating and general power distribution.
The S200P range combines advanced current-limiting technology with proven ABB engineering to minimise fault energy and protect connected equipment. Separate thermal and electromechanical tripping mechanisms provide reliable protection against overloads and short circuits while maintaining long-term operational performance.
With its three-pole configuration, compact DIN rail design and high breaking capacity, the S203P-B63 is an excellent choice for distribution boards, control panels and industrial electrical systems requiring reliable three-phase circuit protection.
The ABB S203P-B63 automatically disconnects electrical circuits when overload or short-circuit conditions occur, helping protect wiring, switchgear and connected equipment. Its B-curve characteristic makes it particularly suitable for resistive loads where minimal starting current is expected.
Manufactured to internationally recognised standards, the S200P range delivers reliable protection in commercial buildings, industrial facilities and OEM machinery. Its modular design also allows easy integration with ABB auxiliary contacts and other compatible accessories.
| Current | 63 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-B63 |
| Product ID | 2CDS283001R0635 |
| EAN | 4016779589864 |
| Product type | Miniature circuit breaker |
| Number of poles | 3P |
| Rated current | 63 A |
| Tripping characteristic | B curve |
| Rated operational voltage | 400 V AC |
| Breaking capacity | Up to 25 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 (IP40 when installed in enclosure) |
| Mounting type | DIN rail |
| Terminal type | Screw terminals |
| Dimensions (H × W × D) | 88 × 52.5 × 69 mm |
| Weight | Approx. 0.42 kg |
The ABB S203P-B63 protects three-phase electrical circuits against overloads and short circuits in commercial and industrial installations.
The circuit breaker has a rated current of 63 A.
The B-curve characteristic is intended for circuits with relatively low inrush currents, including lighting, heating and general electrical distribution.
The ABB S203P-B63 is a three-pole miniature circuit breaker designed for three-phase systems.
The breaker is designed for quick installation onto a standard 35 mm DIN rail inside electrical distribution boards and control panels.
ABB System pro M compact S200P miniature circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for dependable low voltage circuit protection across a wide range of applications.
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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...