ABB S303P-B32NA miniature circuit breaker with a 32 A current rating, Type B tripping characteristic, 3P+N configuration and high breaking capacity for industrial electrical protection.
£169.02
The ABB S303P-B32NA, product code 2CDS383103R0325, 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 trusted ABB System pro M compact S300P series, it combines high breaking capacity, reliable operation and robust construction for demanding applications.
Featuring a Type B tripping characteristic, the S303P-B32NA is ideally suited to circuits with low inrush currents, including lighting, socket outlets, electronic equipment and resistive loads. The thermal and magnetic trip mechanisms ensure rapid fault detection while helping protect wiring, equipment and personnel.
With a rated current of 32 A, a 3P+N configuration and a rated operational voltage of up to 415 V AC, this miniature circuit breaker is ideal for three-phase distribution systems requiring simultaneous neutral switching. Its DIN rail mounting design enables straightforward installation into modern electrical panels and switchboards.
Miniature circuit breakers automatically disconnect electrical circuits when abnormal current conditions occur. Their combined thermal and magnetic trip mechanisms help prevent cable damage, equipment failure and electrical hazards while ensuring dependable operation in industrial and commercial installations.
The ABB S303P-B32NA is designed for applications where rapid protection of low inrush current circuits is required. Its high breaking capacity and robust construction make it suitable for modern electrical distribution systems requiring dependable protection and long service life.
| Current | 32 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S303P-B32NA |
| Product ID | 2CDS383103R0325 |
| Product type | Miniature circuit breaker |
| Rated current | 32 A |
| Tripping characteristic | Type B |
| Pole configuration | 3P+N |
| Total poles | 4 |
| Protected poles | 3 |
| Rated operational voltage | 415 V AC |
| Maximum DC voltage | 125 V DC |
| Frequency | 50 / 60 Hz |
| Breaking capacity | 25 kA (IEC 60947-2), 20 kA (EN 60898-1) |
| Protection rating | IP20 |
| Mounting type | DIN rail mounting |
| Terminal capacity | 0.75 to 35 mm² |
| Operating temperature | -40 to +70 °C |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.496 kg |
| EAN | 4016779077064 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S303P-B32NA protects three-phase electrical circuits against overloads and short circuits in industrial and commercial installations.
The S303P-B32NA has a rated current of 32 A.
Type B circuit breakers provide fast protection for circuits with relatively low inrush currents, such as lighting, socket outlets and electronic equipment.
The breaker offers a short-circuit breaking capacity of up to 25 kA in accordance with IEC 60947-2.
The breaker is designed for installation on a standard DIN rail inside electrical distribution boards and industrial control panels.
ABB System pro M compact miniature circuit breakers are trusted worldwide by electrical engineers, panel builders and industrial professionals for dependable circuit protection, high performance and long-term reliability.
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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...