ABB S203M-K6 3-pole 6 A K curve miniature circuit breaker from the System pro M compact S200M range for overload and short circuit protection in industrial and commercial electrical installations.
£140.05
The ABB S203M-K6 is a premium 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed for dependable overload and short circuit protection, it provides reliable performance in industrial, commercial and OEM electrical installations where circuits experience higher inrush currents.
Featuring a K tripping characteristic, the S203M-K6 is ideal for protecting transformers, motors, control circuits and other inductive loads. ABB's current limiting technology helps minimise fault energy, reducing stress on connected equipment while improving overall installation reliability.
With a 6 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203M-K6 delivers dependable protection for three-phase electrical systems. It complies with both IEC/EN 60898-1 and IEC/EN 60947-2, making it suitable for residential, commercial and industrial applications.
The ABB S203M-K6 combines thermal overload protection with rapid magnetic short circuit protection to safeguard electrical circuits and connected equipment. Its current limiting design reduces thermal and mechanical stress during fault conditions, improving overall system reliability.
The K curve characteristic is specifically intended for applications with elevated inrush currents, making this miniature circuit breaker ideal for motors, transformers, industrial control systems and machine building applications.
| Current | 6 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-K6 |
| Manufacturer Part Number | 2CDS273001R0377 |
| EAN | 4016779601177 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 6 A |
| Number of poles | 3P |
| Tripping characteristic | K |
| Rated operational voltage | Up to 440 V AC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 10 kA |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Terminal type | Failsafe bi-directional cylinder-lift terminal |
| Mechanical endurance | 20,000 operating cycles |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.375 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S203M-K6 protects electrical circuits against overloads and short circuits in industrial, commercial and OEM installations.
This miniature circuit breaker has a 6 A rated current.
The K curve is designed for circuits with higher inrush currents, making it suitable for motors, transformers and inductive loads.
The ABB S203M-K6 is a 3-pole miniature circuit breaker suitable for protecting three-phase electrical systems.
The circuit breaker complies with IEC/EN 60898-1, IEC/EN 60947-2 and UL 1077, making it suitable for residential, commercial and industrial applications.
ABB System pro M compact S200M miniature circuit breakers are trusted by panel builders, OEM manufacturers and electrical engineers for reliable protection, long service life and proven industrial performance.
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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...