ABB 2CDS381001R0635 S301P-B63 miniature circuit breaker with 63 A rated current, Type B tripping characteristic and up to 25 kA breaking capacity for industrial circuit protection.
£47.41
The ABB 2CDS381001R0635, also known as the ABB S301P-B63, is a premium miniature circuit breaker (MCB) from the trusted ABB System pro M compact S300P series. Designed to provide reliable protection against overloads and short circuits, it is ideal for industrial, commercial and OEM electrical installations requiring high fault-breaking performance.
Manufactured in accordance with recognised IEC and UL standards, this single-pole circuit breaker combines thermal and magnetic tripping with a compact modular design for quick installation on standard DIN rails. It also features ABB's integrated trip indicator and compatibility with the System pro M compact accessory range for greater installation flexibility.
With a 63 A rated current, a Type B tripping characteristic and an ultimate breaking capacity of up to 25 kA, the ABB 2CDS381001R0635 is particularly suited to protecting long cable runs, resistive loads and general-purpose distribution circuits.
The ABB S301P-B63 automatically disconnects electrical circuits during overload and short-circuit conditions, protecting wiring, distribution equipment and connected electrical systems from damage. Its high fault-breaking capability makes it suitable for demanding industrial and commercial environments.
The Type B tripping characteristic is designed for circuits with low inrush currents, making this MCB ideal for protecting lighting circuits, heating systems, long cable runs and general-purpose electrical distribution.
| Current | 63 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Extended product type | S301P-B63 |
| Model | 2CDS381001R0635 |
| Product type | Miniature Circuit Breaker (MCB) |
| Number of poles | 1 |
| Protected poles | 1 |
| Rated current | 63 A |
| Tripping characteristic | Type B |
| Maximum operating voltage | 480Y/277 V AC, 125 V DC |
| Rated frequency | 50 / 60 Hz |
| Ultimate breaking capacity (Icu) | 25 kA |
| Rated insulation voltage | 500 V |
| Impulse withstand voltage | 6 kV |
| Protection rating | IP20 (IP40 when installed in an enclosure) |
| Mounting type | 35 mm DIN rail |
| Dimensions (H × W × D) | approx. 88 × 17.5 × 67.6 mm |
| Weight | approx. 0.124 kg |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077, CSA 22.2 No. 235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects industrial and commercial electrical circuits against overloads and short circuits, particularly general-purpose distribution and resistive load applications.
The ABB S301P-B63 has a 63 A rated current.
Type B circuit breakers are intended for circuits with relatively low inrush currents, such as lighting, heating and general electrical distribution.
The ABB 2CDS381001R0635 provides an ultimate short-circuit breaking capacity of up to 25 kA.
The circuit breaker is designed for installation onto a standard 35 mm DIN rail inside electrical distribution boards and industrial control panels.
ABB System pro M compact miniature circuit breakers are trusted worldwide by electrical contractors, panel builders and industrial engineers for their dependable protection, high quality and long service life.
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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...