ABB S301P-C4 single-pole miniature circuit breaker with a 4 A current rating, C curve tripping characteristic, 25 kA AC breaking capacity and DIN rail mounting for industrial circuit protection.
£41.83
The ABB 2CDS381001R0044, also known as the S301P-C4, is a high-performance single-pole miniature circuit breaker (MCB) designed to protect electrical circuits against overloads and short circuits. As part of the advanced ABB System pro M compact S300P series, it is engineered for demanding industrial and commercial applications requiring dependable protection and high fault interruption capability.
The S301P-C4 features a C tripping characteristic, making it suitable for circuits supplying equipment with moderate start-up currents, including motors, transformers, control devices and industrial machinery. Its compact modular construction allows straightforward installation on a standard DIN rail, while the integrated trip indicator provides clear visual identification when the breaker has operated.
With a rated current of 4 A, a rated AC breaking capacity of 25 kA and compatibility with AC and DC electrical systems, the ABB S301P-C4 delivers reliable protection in control panels, distribution boards and automation equipment. Its fail-safe screw terminals, dual DIN rail release and compatibility with ABB System pro M compact accessories simplify installation, maintenance and system expansion.
Miniature circuit breakers automatically disconnect electrical circuits when excessive current is caused by an overload or short circuit. This helps protect cables, equipment and connected loads from thermal damage, electrical faults and potential system failure.
The ABB S300P range is specifically developed for applications requiring high breaking capacities and dependable service continuity. The S301P-C4 combines robust electrical performance with compact dimensions, clear status indication and convenient DIN rail installation, making it a practical solution for panel builders, machine manufacturers and industrial maintenance teams.
| Current | 4 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-C4 |
| Product ID | 2CDS381001R0044 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 4 A |
| Number of poles | 1 |
| Number of protected poles | 1 |
| Tripping characteristic | C |
| Rated operational voltage | 240 / 415 V AC |
| Rated DC voltage | 125 V DC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Frequency | 50 / 60 Hz |
| Rated AC breaking capacity | 25 kA |
| Rated ultimate breaking capacity at 230 / 240 V AC | 100 kA |
| Energy-limiting class | 3 |
| Protection rating | IP20, IP40 when installed in a suitable enclosure |
| Mounting type | 35 mm DIN rail |
| Terminal type | Fail-safe screw terminals |
| Electrical endurance | 20,000 operating cycles |
| Mechanical endurance | 20,000 operating cycles |
| Dimensions (H × W × D) | 88 × 17.5 × 69 mm |
| Weight | approx. 0.12 kg |
| EAN | 4016779080613 |
| Country of origin | Germany |
| Standards | IEC/EN 60898-1, IEC/EN 60947-2, UL 1077 and CSA 22.2 No. 235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB 2CDS381001R0044 is used to protect electrical circuits, cables and connected equipment against overloads and short circuits in industrial and commercial installations.
The S301P-C4 has a rated current of 4 A.
The C curve allows moderate short-duration inrush currents before tripping, making the breaker suitable for circuits supplying motors, transformers and industrial control equipment.
The ABB S301P-C4 provides a rated AC breaking capacity of 25 kA, offering reliable protection in installations with high prospective short-circuit currents.
The breaker mounts on a standard 35 mm DIN rail and uses fail-safe screw terminals for secure electrical connections.
ABB System pro M compact miniature circuit breakers are trusted by panel builders, electrical contractors and industrial engineers for dependable overload protection, high short-circuit performance and straightforward system integration.
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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...