ABB S301P-B63NA miniature circuit breaker with 63 A rated current, B tripping characteristic, 1P+N configuration and 25 kA breaking capacity for industrial and commercial electrical protection.
£92.30
The ABB 2CDS381103R0635, also designated S301P-B63NA, is a premium miniature circuit breaker (MCB) from the proven ABB System pro M compact S300P series. It is engineered to provide dependable overload and short circuit protection for industrial, commercial and OEM electrical installations where high breaking capacity and reliable performance are essential.
Designed for modern electrical distribution systems, this compact circuit breaker features a B tripping characteristic, making it ideal for protecting resistive and lightly inductive loads. The integrated switched neutral, robust screw terminals and DIN rail mounting ensure fast installation and dependable long-term operation in distribution boards and control panels.
With a 63 A rated current, 240 V AC operating voltage, 1P+N configuration and an impressive 25 kA breaking capacity, the ABB S301P-B63NA delivers excellent protection for industrial power distribution while complying with recognised international standards.
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short circuit conditions occur, helping protect electrical wiring, equipment and connected machinery from damage while improving operational safety.
The B tripping characteristic is ideally suited to general-purpose electrical distribution, lighting circuits and standard commercial loads where rapid protection is required without nuisance tripping during normal operation. Combined with ABB's proven S300P platform, the S301P-B63NA provides dependable performance in demanding industrial environments.
| Current | 63 A |
|---|---|
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-B63NA |
| Product ID | 2CDS381103R0635 |
| EAN | 4016779079143 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 63 A |
| Tripping characteristic | B |
| Number of poles | 1P+N |
| Protected poles | 1 |
| Rated operating voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Breaking capacity | 25 kA |
| Rated insulation voltage | 500 V |
| Impulse withstand voltage | 6 kV |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 (IP40 when installed in an 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 |
This miniature circuit breaker protects electrical circuits against overloads and short circuits in industrial and commercial installations.
The ABB S301P-B63NA has a 63 A rated current.
The B characteristic is designed for general-purpose circuits including lighting and resistive loads where relatively fast overload protection is required.
The circuit breaker is designed for quick installation onto a standard DIN rail inside distribution boards and control panels.
The ABB S301P-B63NA provides a high 25 kA breaking capacity for demanding industrial electrical installations.
ABB System pro M compact S300P miniature circuit breakers are trusted by electricians, panel builders and industrial engineers worldwide for delivering reliable circuit protection, exceptional durability and consistent long-term performance.
● 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...