ABB S203P-K10 three-pole 10 A miniature circuit breaker with K tripping characteristic for industrial and commercial electrical protection.
The ABB S203P-K10 is a high performance three-pole miniature circuit breaker (MCB) from the trusted ABB System pro M compact S200P series. Designed for reliable overcurrent and short circuit protection, it is ideal for industrial control panels, OEM machinery, commercial installations and supplementary protection applications where dependable circuit protection is essential.
Featuring a K tripping characteristic, the S203P-K10 is particularly suited to circuits with moderate inrush currents, including motors, transformers and inductive loads. The advanced thermal and magnetic trip mechanisms provide accurate overload protection together with rapid fault interruption, helping to safeguard electrical equipment and minimise downtime.
With a 10 A rated current, three-pole configuration and breaking capacities of up to 25 kA depending on the applicable standard, the ABB S203P-K10 delivers dependable protection for demanding industrial and commercial electrical installations. It is fully compatible with DIN rail mounting and a wide range of ABB accessories for enhanced system flexibility.
The ABB S203P-K10 provides dependable protection against overloads and short circuits while helping maintain the safe operation of electrical distribution systems. Its current limiting construction reduces the energy released during fault conditions, helping to protect connected equipment and wiring.
The K characteristic makes this breaker particularly suitable for circuits supplying motors, transformers and other inductive loads where higher starting currents are expected. Its compact design and compatibility with ABB accessories make it an excellent choice for machine builders, panel manufacturers and industrial maintenance professionals.
| Current | 10 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-K10 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 10 A |
| Number of poles | 3 |
| Tripping characteristic | K |
| Rated operational voltage | 400 V AC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | Up to 25 kA (application dependent) |
| Mounting type | DIN rail |
| Protection rating | IP20 (terminals), IP40 when installed in an enclosure |
| Terminal type | Screw terminals |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL1077, CSA 22.2 No. 235 |
The S203P-K10 protects electrical circuits against overloads and short circuits in industrial, commercial and automation applications.
The K curve is designed for circuits with moderate inrush currents, making it well suited to motors, transformers and inductive loads.
The ABB S203P-K10 is a three-pole miniature circuit breaker.
This model has a 10 A rated current.
The S203P-K10 is designed for quick and secure installation onto standard DIN rails within electrical control panels and distribution boards.
ABB System pro M compact miniature circuit breakers are trusted by panel builders, OEM manufacturers and electrical engineers worldwide for delivering reliable circuit protection, high quality 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...