Why Choose the ABB S303P-B32 Miniature Circuit Breaker?
The ABB S303P-B32 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 delivers high breaking capacity, reliable operation and long service life for demanding low voltage distribution systems.
Designed in accordance with international IEC and UL standards, the S303P-B32 features a compact DIN rail mounted design that allows quick installation within switchboards, distribution boards and industrial control panels. Its robust switching mechanism, fail-safe terminals and clear trip indication simplify installation and maintenance while ensuring reliable operation.
Featuring a 32 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 systems requiring rapid overload protection.
Key Advantages
- Compact three-pole miniature circuit breaker for industrial and commercial applications.
- 32 A rated current suitable for higher current distribution circuits.
- B curve tripping characteristic for rapid overload protection.
- 25 kA breaking capacity for demanding fault conditions.
- Manufactured to international IEC and UL standards.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- 32 A rated current.
- Three protected poles.
- B curve tripping characteristic.
- 415 V AC rated operational voltage.
- 25 kA short-circuit breaking capacity.
- IP20 protection rating.
- 35 mm DIN rail mounting.
Reliable Circuit Protection for Low Voltage Installations
The ABB S303P-B32 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, switchgear and connected equipment from electrical damage. Its B curve characteristic provides fast tripping for resistive loads and applications with relatively low inrush currents.
The ABB S300P range is trusted worldwide by electrical contractors, panel builders and industrial engineers for dependable performance, high fault protection and straightforward integration into modern electrical distribution systems.
Typical Applications
- Commercial electrical distribution boards.
- Industrial switchboards.
- Lighting circuits.
- Building services installations.
- OEM machinery.
- General low voltage electrical distribution.
