ABB 2CDS381103R0407 S301P-K8NA miniature circuit breaker with an 8 A rating, Type K tripping characteristic, 1P+N configuration and 25 kA breaking capacity for industrial electrical protection.
£93.68
The ABB 2CDS381103R0407, also known as the S301P-K8NA, is a premium miniature circuit breaker (MCB) from the robust ABB System pro M Compact S300P series. Designed for demanding industrial and commercial applications, it provides dependable protection against overloads and short circuits while delivering exceptional reliability in critical electrical installations.
Engineered to international IEC and UL standards, the S301P-K8NA combines ABB's proven build quality with a compact modular design for straightforward DIN rail installation. Features including integrated trip indication, fail-safe bi-directional screw terminals and a high interruption capacity make it an excellent choice for modern control panels and power distribution systems.
With an 8 A rated current, a Type K tripping characteristic, a 1P+N configuration and a 25 kA breaking capacity, the ABB 2CDS381103R0407 is particularly suited to protecting motors, transformers, inductive loads and industrial machinery with high inrush currents.
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short circuit conditions occur. The Type K tripping characteristic is specifically designed to tolerate higher inrush currents, making it ideal for protecting motors, transformers, solenoids and other inductive equipment without unnecessary nuisance tripping.
The ABB S300P series provides exceptional fault interruption performance, long operational life and worldwide approvals, making it a preferred choice for OEM machinery, industrial automation and commercial electrical installations.
| Current | 8 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S300P |
| Model | 2CDS381103R0407 |
| Extended product type | S301P-K8NA |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 8 A |
| Tripping characteristic | Type K |
| Number of poles | 1P+N |
| Protected poles | 1 |
| Rated voltage | 240 V AC |
| Maximum operating voltage (UL/CSA) | 480Y / 277 V AC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Breaking capacity (Icu) | 25 kA |
| Service breaking capacity (Ics) | 12.5 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Terminal type | Screw terminals |
| Dimensions (H × W × D) | approx. 88 × 35 × 69 mm |
| Weight | approx. 0.248 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects industrial electrical circuits against overloads and short circuits, particularly where motors, transformers and inductive loads are installed.
The ABB 2CDS381103R0407 has a rated current of 8 A.
Type K circuit breakers are designed for circuits with higher inrush currents, making them ideal for motor starters, transformers and industrial inductive loads.
The breaker protects the phase conductor while simultaneously switching the neutral conductor, improving isolation during maintenance and fault conditions.
The device is designed for quick installation onto standard DIN rails using secure screw terminal connections.
ABB System pro M Compact S300P miniature circuit breakers are trusted worldwide by electrical engineers, OEMs and panel builders for dependable protection, high interruption capacity and reliable long-term performance in industrial 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...