ABB S303P-K6 miniature circuit breaker featuring a 3-pole design, 6 A current rating and K tripping characteristic for industrial overload and short-circuit protection.
£203.91
The ABB S303P-K6 (2CDS383001R0338) is a premium three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the proven ABB S300P series, it delivers exceptional breaking performance and dependable circuit protection for demanding applications.
Manufactured to recognised IEC and UL standards, the S303P-K6 combines high electrical performance with long-term reliability. Its compact DIN rail design, robust construction and clear contact position indication make installation, operation and maintenance straightforward for panel builders and electrical engineers.
With a 6 A current rating, K tripping characteristic and an impressive 100 kA ultimate short-circuit breaking capacity (IEC 60947-2), this miniature circuit breaker is ideal for protecting motor circuits, transformers and industrial equipment with high inrush currents.
The ABB S303P-K6 miniature circuit breaker automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect equipment, minimise downtime and improve electrical safety across industrial installations.
Its K tripping characteristic is specifically suited to applications with higher starting currents, including motors, transformers, compressors and other inductive industrial loads.
| Current | 4 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P |
| Model | S303P-K6 |
| Product ID | 2CDS383001R0338 |
| Product type | Miniature circuit breaker (MCB) |
| Current rating | 6 A |
| Number of poles | 3 |
| Tripping characteristic | K |
| Rated voltage | 415 V AC |
| Ultimate short-circuit breaking capacity (Icu) | 100 kA at 400 to 440 V AC |
| Rated breaking capacity | 25 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.37 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S303P-K6 provides reliable overload and short-circuit protection for industrial electrical circuits and power distribution systems.
This miniature circuit breaker has a 6 A rated current.
The K curve is ideal for protecting motors, transformers and other equipment with higher inrush currents while maintaining reliable circuit protection.
The ABB S303P-K6 is designed for fast installation onto a standard DIN rail inside electrical distribution panels.
It is commonly used in industrial switchboards, machine control panels, OEM equipment and commercial electrical distribution systems.
ABB S300P miniature circuit breakers are trusted by panel builders, OEM manufacturers and industrial engineers for delivering dependable protection, high breaking performance and long operational life in demanding electrical installations.
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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...