ABB S203M-K16 3-pole 16 A K curve miniature circuit breaker from the System pro M compact S200M range, designed for overload and short circuit protection in industrial, commercial and control panel applications.
£116.84
The ABB S203M-K16 is a high-quality 3-pole miniature circuit breaker (MCB) from the ABB System pro M compact S200M series. Designed for professional electrical installations, it provides reliable overload and short circuit protection for industrial, commercial and OEM control panel applications.
Featuring a K tripping characteristic, the S203M-K16 is particularly suitable for circuits with higher inrush currents, including transformers, motors, control circuits and inductive loads. Its current limiting design helps reduce fault energy, protecting connected equipment and improving installation reliability.
With a 16 A rated current, 3-pole configuration and 10 kA breaking capacity, the ABB S203M-K16 delivers dependable circuit protection in a compact DIN rail mounted format. It is suitable for three-phase electrical systems where reliable protection and compact installation are required.
Miniature circuit breakers such as the ABB S203M-K16 protect electrical circuits by disconnecting the supply when overload or short circuit conditions occur. The thermal mechanism responds to sustained overloads, while the magnetic mechanism provides rapid disconnection during short circuit faults.
The K curve characteristic is designed for circuits with increased inrush current, making this MCB suitable for industrial control systems, transformer circuits, motor control equipment and machinery applications. Its 3-pole construction provides protection for three-phase circuits within a compact DIN rail mounted format.
| Current | 16 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200M |
| Model | S203M-K16 |
| Manufacturer Part Number | 2CDS273001R0517 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 16 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 |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Terminal type | Bi-directional cylinder-lift terminal |
| Operating temperature | -25 to +55 °C |
| 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-K16 is used to protect electrical circuits against overloads and short circuits in industrial, commercial and control panel applications.
The S203M-K16 has a 16 A rated current.
The K curve is designed for circuits with higher inrush currents, making it suitable for transformers, motors, inductive loads and control equipment.
The ABB S203M-K16 is a 3-pole miniature circuit breaker, suitable for three-phase circuit protection.
The S203M-K16 provides a 10 kA breaking capacity, supporting reliable short circuit protection in professional electrical installations.
ABB System pro M compact S200M miniature circuit breakers are trusted by panel builders, electrical contractors and automation engineers for dependable protection, compact installation and proven performance in demanding electrical systems.
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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...