ABB S203P-K0.3 three-pole 0.3 A K curve miniature circuit breaker from the System pro M compact S200P series, designed for overload and short circuit protection in low-current industrial and commercial electrical installations.
The ABB S203P-K0.3 is a precision three-pole miniature circuit breaker (MCB) designed to provide reliable overload and short circuit protection for low-current electrical circuits. As part of the trusted ABB System pro M compact S200P series, it offers dependable circuit protection in a compact DIN rail mounted format.
This miniature circuit breaker features a K trip characteristic, making it suitable for circuits where controlled magnetic tripping is required, including inductive loads, control circuits, instrumentation and specialist industrial applications. Its current limiting design helps reduce fault energy during short circuit conditions, improving safety while helping protect connected components and wiring.
With a rated current of 0.3 A, a three-pole configuration and a high breaking capacity of up to 25 kA, the ABB S203P-K0.3 is ideal for sensitive three-phase protection applications where accurate low-current circuit protection is essential.
Miniature circuit breakers such as the ABB S203P-K0.3 are designed to automatically disconnect electrical circuits during overload or short circuit conditions. This helps prevent cable damage, component failure and potential safety hazards within electrical installations.
The K curve characteristic is suitable for selected inductive and control applications where the breaker must tolerate expected starting or switching currents while still providing reliable disconnection under fault conditions. This makes the S203P-K0.3 a practical choice for low-current industrial control and protection circuits.
| Current | 0.3 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-K0.3 |
| Product ID | 2CDS283001R0117 |
| EAN | 4016779592628 |
| Product type | Miniature circuit breaker |
| Rated current | 0.3 A |
| Number of poles | 3 |
| Trip characteristic | K curve |
| Rated operational voltage | 230 / 400 V AC |
| Rated impulse withstand voltage | 4 kV |
| Breaking capacity | Up to 25 kA |
| Current limiting class | Class 3 |
| Mounting type | DIN rail |
| Application | Overload and short circuit protection |
The ABB S203P-K0.3 is used to protect low-current three-phase electrical circuits against overloads and short circuits, particularly in control panels, instrumentation and specialist industrial applications.
The S203P-K0.3 has a rated current of 0.3 A.
A K curve miniature circuit breaker is designed for selected inductive and control circuit applications where the breaker must tolerate expected switching or starting currents while still protecting against fault conditions.
The ABB S203P-K0.3 is a three-pole miniature circuit breaker for protecting three-phase circuits.
The S203P-K0.3 is designed for standard DIN rail mounting inside electrical distribution boards, switchboards and control panels.
ABB System pro M compact miniature circuit breakers are widely trusted by electrical contractors, panel builders and industrial engineers for dependable circuit protection, compact installation and long service life in professional 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...