ABB 2CDS381001R0557 System pro M Compact S301 miniature circuit breaker with 40 A current rating, Type K tripping characteristic and 25 kA breaking capacity for industrial circuit protection.
£58.55
The ABB 2CDS381001R0557 is a high-performance miniature circuit breaker (MCB) from the trusted ABB System pro M Compact S301 series. Designed to provide dependable protection against overloads and short circuits, it is ideal for industrial, commercial and specialist electrical installations where high breaking capacity is essential.
Engineered for reliability and safety, this single-pole circuit breaker incorporates advanced tripping technology and a clear trip indication system, helping maintenance personnel quickly identify fault conditions. Its compact DIN rail mounted design enables fast installation and compatibility with the ABB System pro M Compact accessory range.
With a 40 A current rating, Type K tripping characteristic and an impressive 25 kA breaking capacity, the ABB 2CDS381001R0557 is suitable for demanding applications involving motors, transformers and industrial control equipment where higher inrush currents are present.
Miniature circuit breakers protect electrical systems by automatically disconnecting power during overload or short circuit conditions. The ABB S301 series provides fast and reliable operation, helping minimise equipment damage and improve the safety of electrical installations.
The Type K tripping characteristic makes this circuit breaker particularly suitable for circuits supplying motors, transformers and inductive loads that experience higher starting currents, while maintaining dependable protection against electrical faults.
| Current | 40 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M Compact S301 |
| Model | 2CDS381001R0557 |
| Product type | Miniature Circuit Breaker (MCB) |
| Number of poles | 1 |
| Rated current | 40 A |
| Tripping characteristic | Type K |
| Rated AC voltage | 415 V AC |
| Rated DC voltage | 125 V DC |
| Breaking capacity | 25 kA |
| Mounting type | DIN rail |
| Protection rating | IP20 (IP40 when installed in enclosure) |
| Dimensions (H × W × D) | 88 × 17.5 × 69 mm |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It provides overload and short circuit protection for industrial, commercial and specialist electrical circuits.
The ABB 2CDS381001R0557 has a 40 A rated current.
Type K circuit breakers are designed for applications with higher inrush currents, such as motors and transformers, while still providing effective circuit protection.
The device is designed for quick and secure installation onto a standard DIN rail.
The circuit breaker offers a high 25 kA breaking capacity, making it suitable for demanding industrial applications.
ABB miniature circuit breakers are widely specified by electrical engineers, panel builders and industrial maintenance professionals for dependable circuit protection, proven reliability 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...