ABB S303P-K6 three-pole miniature circuit breaker with a 6 A rated current, Type K tripping characteristic and 25 kA breaking capacity for industrial circuit protection.
£167.54
The ABB S303P-K6 (2CDS383001R0377) is a high-performance three-pole miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. As part of the robust ABB S300P series, it delivers reliable circuit protection for machinery, control panels and demanding power distribution applications.
This miniature circuit breaker combines a high breaking capacity with a compact modular design, making it suitable for installations where dependable protection and efficient use of panel space are essential. Its fail-safe terminals support secure conductor installation, while power can be supplied from either the top or bottom for greater wiring flexibility.
With a rated current of 6 A, a Type K tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-K6 is particularly suitable for circuits containing motors, transformers and other inductive equipment with elevated starting currents.
The ABB S303P-K6 automatically disconnects a circuit when excessive current is caused by an overload or short circuit. This helps prevent damage to cables, machinery and connected electrical equipment while improving the safety and reliability of industrial installations.
Its Type K characteristic is designed to tolerate higher short-duration starting currents than standard general-purpose circuit breakers. This makes the S303P-K6 well suited to motor circuits, transformers, solenoids and other inductive loads without compromising dependable fault protection.
| Current | 6 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P |
| Model | S303P-K6 |
| Product ID | 2CDS383001R0377 |
| EAN | 4016779077835 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 6 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Tripping characteristic | Type K |
| Rated AC voltage | 415 V AC |
| Rated DC voltage | 125 V DC |
| Rated breaking capacity | 25 kA |
| Ultimate short-circuit breaking capacity | up to 100 kA at 400–440 V AC |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Electrical endurance | 20,000 cycles |
| Mechanical endurance | 20,000 cycles |
| 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 protects three-phase industrial circuits against overloads and short circuits, helping safeguard cables, machinery and connected electrical equipment.
The ABB S303P-K6 has a rated current of 6 A.
A Type K characteristic is suitable for inductive equipment with higher starting currents, including motors, transformers and solenoids.
The circuit breaker has a rated breaking capacity of 25 kA and an ultimate short-circuit breaking capacity of up to 100 kA at specified AC voltages.
The breaker is mounted on a standard DIN rail inside an industrial control panel, switchboard or electrical distribution enclosure.
ABB S300P miniature circuit breakers are trusted by electrical engineers, machine builders and panel manufacturers for dependable protection, high breaking performance and reliable operation in demanding industrial 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...