ABB S303P-B16 three-pole miniature circuit breaker with a 16 A rated current, B curve tripping characteristic and 25 kA breaking capacity for industrial and commercial electrical protection.
£106.41
The ABB S303P-B16 is a premium three-pole miniature circuit breaker (MCB) engineered to provide dependable protection against overloads and short circuits in industrial, commercial and OEM electrical installations. As part of the trusted ABB System pro M compact S300P series, it combines high breaking capacity with reliable operation to safeguard electrical distribution systems and connected equipment.
Manufactured in accordance with international IEC and UL standards, the S303P-B16 delivers outstanding performance in demanding environments. Its compact DIN rail mounted design, integrated trip indicator and fail-safe terminals simplify installation while providing enhanced safety and ease of maintenance.
With a 16 A rated current, a B curve tripping characteristic and a 25 kA breaking capacity, this miniature circuit breaker is ideally suited for protecting lighting circuits, resistive loads and general electrical distribution where fast fault response is required.
The ABB S303P-B16 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, switchgear and connected equipment. Its B curve characteristic provides rapid tripping for circuits supplying lighting and other resistive loads where fast protection is essential.
The S300P series is widely used by electrical contractors, panel builders and OEM manufacturers thanks to its excellent reliability, high breaking performance and straightforward integration into modern electrical distribution systems.
| Current | 16 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S303P-B16 |
| SKU | 2CDS383001R0165 |
| EAN | 4016779078047 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 16 A |
| Tripping characteristic | B Curve |
| Number of poles | 3 |
| Rated operational voltage | 415 V AC |
| Maximum operating voltage | 480Y/277 V AC, 125 V DC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 25 kA |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm |
| Weight | approx. 0.372 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It provides overload and short-circuit protection for three-phase electrical circuits in industrial, commercial and OEM applications.
The ABB S303P-B16 has a 16 A rated current.
A B curve breaker trips quickly at relatively low overcurrent levels, making it ideal for lighting circuits and resistive electrical loads.
The S303P-B16 provides a 25 kA short-circuit breaking capacity for demanding electrical installations.
The miniature circuit breaker is designed for installation onto a standard 35 mm DIN rail inside switchboards, control panels and distribution boards.
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for delivering dependable circuit protection, outstanding electrical performance 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...