ABB 2CDS381103R0487 S301P-K20NA miniature circuit breaker featuring a 20 A rating, Type K tripping characteristic, 1P+N configuration and 25 kA breaking capacity for industrial electrical protection.
£93.68
The ABB 2CDS381103R0487, also known as the S301P-K20NA, is a premium miniature circuit breaker (MCB) from the proven ABB System pro M Compact S300P series. Specifically developed for industrial and commercial electrical installations, it delivers dependable protection against overloads and short circuits while maintaining exceptional operational reliability in demanding environments.
Manufactured to recognised IEC, UL and CSA standards, the S301P-K20NA combines ABB's renowned engineering quality with a compact DIN rail-mounted design. Integrated trip indication, fail-safe screw terminals and compatibility with ABB System pro M Compact accessories make installation, maintenance and future system expansion straightforward.
Featuring a 20 A rated current, a Type K tripping characteristic, a 1P+N configuration and a 25 kA breaking capacity, the ABB 2CDS381103R0487 is ideally suited for protecting motors, transformers, solenoids and other inductive loads that generate 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 for applications with elevated inrush currents, making it ideal for motors, transformers, solenoids and other inductive loads while helping to minimise nuisance tripping.
The ABB S300P range offers exceptional interruption performance, compact dimensions and dependable long-term reliability, making it a preferred solution for industrial automation, machine builders, OEM equipment and commercial electrical distribution systems.
| Current | 20 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S300P |
| Model | 2CDS381103R0487 |
| Extended product type | S301P-K20NA |
| Product type | Miniature circuit breaker (MCB) |
| EAN | 4016779079310 |
| Rated current | 20 A |
| Tripping characteristic | Type K |
| Number of poles | 1P+N |
| Protected poles | 1 |
| Rated voltage | 240 V AC |
| Maximum operating voltage | 480Y / 277 V AC |
| Rated DC voltage | 72 V DC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Breaking capacity (Icu) | 25 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) |
| 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 motors, transformers and other inductive loads with high starting currents.
The ABB 2CDS381103R0487 has a 20 A rated current.
Type K circuit breakers are designed to tolerate higher inrush currents while providing fast protection against genuine fault conditions, making them ideal for industrial motors and transformers.
The breaker protects the phase conductor while simultaneously switching the neutral conductor to improve circuit isolation during maintenance and fault conditions.
The device is designed for quick installation onto a standard DIN rail using secure screw terminal connections.
ABB System pro M Compact S300P miniature circuit breakers are trusted worldwide by electrical engineers, OEM manufacturers and panel builders for dependable protection, high interruption capacity and long-term reliability in industrial electrical installations.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...