ABB S303P-C20 three-pole miniature circuit breaker with a 20 A rated current, C curve tripping characteristic and 25 kA breaking capacity for industrial and commercial electrical protection.
£128.82
The ABB S303P-C20 is a premium three-pole miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial, commercial and OEM electrical installations. As part of the trusted ABB System pro M compact S300P series, it delivers high breaking capacity, reliable performance and long service life for demanding low voltage distribution systems.
Manufactured in accordance with international IEC and UL standards, the S303P-C20 combines robust construction with a compact DIN rail mounted design, making installation quick and straightforward inside switchboards, distribution boards and industrial control panels. Its high-quality operating mechanism ensures consistent protection while reducing maintenance requirements.
Featuring a 20 A rated current, a C curve tripping characteristic and a 25 kA breaking capacity, this miniature circuit breaker is ideally suited for protecting circuits supplying mixed resistive and inductive loads including lighting, socket circuits, pumps, compressors and small motors.
The ABB S303P-C20 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, machinery and connected equipment from damage. Its C curve characteristic makes it suitable for circuits with moderate inrush currents, providing dependable protection without unnecessary nuisance tripping.
The S300P range is widely specified by electrical contractors, machine builders and panel manufacturers thanks to its high fault capacity, dependable operation and straightforward integration into modern electrical distribution systems.
| Current | 20 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S303P-C20 |
| SKU | 2CDS383001R0204 |
| EAN | 4016779078016 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 20 A |
| Tripping characteristic | C Curve |
| Number of poles | 3 |
| Rated operational voltage | 415 V AC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 25 kA |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.372 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM applications.
The ABB S303P-C20 has a 20 A rated current.
The C curve is designed for circuits with moderate inrush currents, making it suitable for lighting, socket circuits, pumps and small motors.
The S303P-C20 provides a 25 kA short-circuit breaking capacity for demanding industrial and commercial electrical installations.
The miniature circuit breaker is designed for installation on a standard 35 mm DIN rail inside switchboards, distribution boards and industrial control panels.
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for delivering reliable circuit protection, excellent electrical performance and long service life.
● 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...