ABB S303P-B16NA miniature circuit breaker with a 16 A current rating, Type B tripping characteristic, 3P+N configuration and 25 kA breaking capacity for industrial electrical protection.
£130.02
The ABB 2CDS383103R0165, also known as the S303P-B16NA, is a premium miniature circuit breaker (MCB) designed to provide dependable protection against overloads and short circuits in industrial and commercial electrical installations. As part of the renowned ABB S300P System pro M compact series, it combines high fault-breaking performance with compact dimensions, making it ideal for demanding power distribution applications.
The breaker features a 3P+N configuration, protecting all three phase conductors while incorporating a switched neutral pole. Its Type B tripping characteristic is designed for circuits with low inrush currents, making it particularly suitable for lighting installations, resistive loads, control circuits and commercial distribution systems.
With a rated current of 16 A, a maximum operating voltage of 415 V AC and a 25 kA breaking capacity, the ABB S303P-B16NA delivers reliable protection for switchboards, distribution boards and industrial control panels. Its DIN rail mounting design enables quick installation while maximising available panel space.
The ABB S303P-B16NA automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect cables, electrical equipment and connected systems while improving operational safety and minimising downtime.
Designed for industrial automation, commercial buildings and OEM equipment, the ABB S300P range provides dependable overload protection, excellent fault-breaking performance and long service life. Its Type B tripping characteristic is particularly suited to lighting circuits and resistive loads where rapid fault clearance is required.
| Current | 16 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | S300P System pro M compact |
| Model | S303P-B16NA |
| Product ID | 2CDS383103R0165 |
| Product type | Miniature circuit breaker |
| Rated current | 16 A |
| Tripping characteristic | Type B |
| Number of poles | 3P+N |
| Number of protected poles | 3 |
| Rated operating voltage | Up to 415 V AC |
| Voltage type | AC/DC |
| Frequency | 50 / 60 Hz |
| Breaking capacity (Icn) | 25 kA |
| Rated insulation voltage | 500 V |
| Impulse withstand voltage | 6 kV |
| Protection rating | IP20 |
| Mounting type | DIN rail mounting |
| Module width | 4 modules |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.496 kg |
| EAN | 4016779077248 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects three-phase electrical circuits against overloads and short circuits in industrial and commercial installations.
The ABB S303P-B16NA has a rated operational current of 16 A.
This model features a Type B tripping characteristic, making it ideal for lighting circuits and other loads with relatively low inrush currents.
The S303P-B16NA provides a rated short-circuit breaking capacity of 25 kA.
It is designed for installation on a standard DIN rail inside electrical distribution boards, switchboards and industrial control panels.
ABB S300P miniature circuit breakers are trusted by electrical engineers, panel builders and OEM manufacturers for delivering dependable overload and short-circuit protection in demanding industrial and commercial electrical 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...