Why Choose the ABB S303P-B25 Miniature Circuit Breaker?
The ABB S303P-B25 is a high-quality 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 reliable circuit protection, high breaking performance and long operational life.
Designed for low voltage electrical distribution systems, the S303P-B25 features a compact DIN rail mounted construction that enables straightforward installation inside switchboards, distribution boards and industrial control panels. Its robust switching mechanism and high-quality terminals ensure safe operation and dependable long-term performance.
Featuring a 25 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-purpose electrical distribution where rapid fault protection is essential.
Key Advantages
- Compact three-pole miniature circuit breaker for industrial and commercial applications.
- 25 A rated current suitable for higher current distribution circuits.
- B curve tripping characteristic provides rapid overload protection.
- 25 kA breaking capacity for demanding fault conditions.
- DIN rail mounting allows quick installation and replacement.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- 25 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 with screw terminals.
Reliable Circuit Protection for Low Voltage Installations
The ABB S303P-B25 automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, electrical equipment and distribution systems from damage. Its B curve characteristic provides fast magnetic tripping, making it particularly suitable for resistive loads and lighting circuits with relatively low inrush currents.
The ABB S300P range is trusted worldwide by electricians, 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.
