ABB S203C2 three-pole 2 A miniature circuit breaker with a C curve tripping characteristic and 6 kA rated breaking capacity for overload and short-circuit protection.
£84.70
The ABB S203C2 is a compact and dependable 3-pole miniature circuit breaker (MCB) designed to protect electrical circuits, cables and connected equipment against overloads and short circuits. Part of the established ABB System pro M compact S200 series, it provides reliable thermal-magnetic protection for commercial, industrial and specialist electrical installations.
Featuring a C curve tripping characteristic, the S203C2 is suitable for circuits with moderate temporary inrush currents. This makes it an effective protection solution for control equipment, small motors, transformers, power supplies, lighting systems and other electrical loads that may draw additional current during start-up.
With a rated current of 2 A, a 3-pole configuration and a rated operational voltage of 400 V AC, the ABB S203C2 is designed for low-current three-phase circuits. Its 6 kA rated short-circuit capacity and compact DIN rail format support straightforward integration into distribution boards, machinery panels and industrial control enclosures.
The ABB S203C2 uses two complementary tripping mechanisms to protect electrical installations. Its delayed thermal mechanism responds to sustained overloads, while its electromagnetic mechanism rapidly disconnects the circuit when a short circuit is detected.
The C curve characteristic allows the breaker to tolerate moderate temporary current surges without unnecessary tripping. This makes it suitable for low-current industrial control circuits, small inductive loads and specialist equipment where reliable three-phase protection is required.
| Current | 2 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200 |
| Model | S203-C2 |
| Product code | 2CDS253001R0024 |
| EAN | 4016779523448 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 2 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Trip characteristic | C Curve |
| Rated operational voltage | 400 V AC |
| Rated frequency | 50 / 60 Hz |
| Rated short-circuit capacity | 6 kA |
| Ultimate short-circuit breaking capacity at 400 V AC | 20 kA |
| Rated impulse withstand voltage | 4 kV |
| Tripping technology | Thermal-magnetic |
| Energy-limiting class | 3 |
| Protection rating | IP20 |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077 |
| Mounting type | DIN rail |
| Module width | 3 modules |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.38 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203C2 protects low-current three-phase electrical circuits against overloads and short circuits in commercial, industrial and machinery applications.
The miniature circuit breaker has a rated current of 2 A.
A C curve circuit breaker permits moderate temporary inrush currents, making it suitable for control equipment, small motors, transformers and other loads with increased starting current.
The ABB S203C2 has a 3-pole configuration, allowing three conductors to be protected and disconnected simultaneously.
The breaker is designed for mounting on a standard DIN rail inside distribution boards, industrial control panels and machinery enclosures.
ABB System pro M compact miniature circuit breakers are widely used by electrical contractors, panel builders and automation engineers for dependable circuit protection, straightforward installation and consistent performance.
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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...