ABB 2CDS381103R0578 System pro M compact S300P miniature circuit breaker with 50 A current rating, Z tripping characteristic and 25 kA breaking capacity for industrial and commercial electrical protection.
£131.65
The ABB 2CDS381103R0578 is a high-performance miniature circuit breaker (MCB) from the trusted System pro M compact S300P series, designed to provide dependable protection against overloads and short circuits in demanding industrial and commercial electrical installations.
Engineered for applications requiring exceptionally high breaking capacity, this ABB MCB combines reliable circuit protection with robust construction and simple DIN rail installation. Its integrated trip indication and fail-safe terminal design help improve installation safety while reducing maintenance time.
Featuring a 50 A rated current, Z tripping characteristic and an impressive 25 kA breaking capacity, the ABB 2CDS381103R0578 is ideal for protecting sensitive electrical circuits where rapid magnetic tripping is required. Its compact design allows straightforward installation within modern distribution boards and industrial control panels.
Miniature circuit breakers automatically disconnect electrical circuits when overloads or short circuits occur, helping protect wiring, equipment and personnel. ABB's S300P range is designed for applications requiring high interrupting capacity while maintaining dependable long-term performance.
The Z tripping characteristic provides extremely fast magnetic operation, making this circuit breaker particularly suitable for protecting sensitive electronic equipment, measurement devices and specialised industrial installations where rapid fault clearance is essential.
| Current | 50 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | 2CDS381103R0578 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 50 A |
| Tripping characteristic | Z |
| Rated voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Breaking capacity | 25 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 (IP40 when installed in enclosure) |
| Mounting type | DIN rail |
| Terminal type | Screw terminals |
| Insulation voltage (Ui) | 500 V |
| Impulse withstand voltage (Uimp) | 6 kV |
| Dimensions (H × W × D) | approx. 115 × 17.5 × 69 mm |
| Weight | approx. 0.25 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 2CDS381103R0578 has a 50 A rated current.
The Z characteristic provides very fast magnetic tripping, making it suitable for protecting sensitive electronic circuits and equipment.
The unit is designed for quick and secure installation onto a standard DIN rail using screw terminal connections.
The breaker provides a high 25 kA breaking capacity for demanding electrical protection applications.
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for delivering dependable protection, high performance and long-term reliability across demanding electrical installations.
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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...