ABB S303P-C0.5 three-pole miniature circuit breaker with a 0.5 A rated current, Type C tripping characteristic and 25 kA breaking capacity for industrial control and automation circuits.
£156.84
The ABB S303P-C0.5 (2CDS383001R0984) is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial electrical installations. As part of the trusted ABB S300P series, it combines a compact modular design with outstanding fault-breaking performance for control circuits, automation systems and OEM machinery.
Manufactured in accordance with recognised IEC and UL standards, the S303P-C0.5 is ideal for industrial control panels, switchgear assemblies and low-current three-phase applications. Its DIN rail mounting arrangement, fail-safe cylinder-lift screw terminals and top or bottom supply connection simplify installation while ensuring long-term reliability.
With a rated current of 0.5 A, a Type C tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-C0.5 is particularly suited to protecting low-current control circuits, instrumentation, signalling equipment and sensitive industrial systems requiring dependable fault protection.
The ABB S303P-C0.5 automatically disconnects electrical circuits during overload or short-circuit conditions, protecting control equipment, signalling systems, cables and connected devices from electrical damage while helping reduce downtime.
Its Type C tripping characteristic accommodates moderate inrush currents without unnecessary tripping, making it ideal for industrial automation, instrumentation, control circuits and OEM machinery requiring dependable low-current protection.
| Current | 0.5 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P |
| Model | S303P-C0.5 |
| Product ID | 2CDS383001R0984 |
| EAN | 4016779077507 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 0.5 A |
| Number of poles | 3 |
| Number of protected poles | 3 |
| Tripping characteristic | Type C |
| Rated AC voltage | 415 V AC |
| Maximum DC voltage | 125 V DC |
| Rated insulation voltage | 500 V |
| Rated impulse withstand voltage | 6 kV |
| Rated short-circuit breaking capacity | 25 kA |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Mounting type | DIN rail |
| Modular width | 3 modules |
| Dimensions (H × W × D) | Approx. 88 × 52.5 × 69 mm |
| Weight | Approx. 0.372 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The S303P-C0.5 protects low-current three-phase industrial circuits against overloads and short circuits, making it ideal for automation, instrumentation and control applications.
The ABB S303P-C0.5 has a rated current of 0.5 A.
Type C circuit breakers are designed for circuits with moderate inrush currents, making them suitable for industrial control equipment, transformers and general-purpose applications.
The circuit breaker provides a rated short-circuit breaking capacity of 25 kA.
The breaker mounts directly onto a standard DIN rail using fail-safe screw terminals and supports supply connections from either the top or bottom.
ABB S300P miniature circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for dependable circuit protection, high breaking performance and reliable operation in demanding industrial installations.
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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...