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2CDS383001R0255 ABB S303P-B25 Miniature Circuit Breaker – 3P – B – 25 A
ABB S303P-B32 three-pole miniature circuit breaker with a 32 A rated current, B curve tripping characteristic and 25 kA breaking capacity for industrial and commercial electrical protection.
£70.23
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.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 25 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 25 kA | |
| Model | S303P-B25 | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| SKU | 2CDS383001R0255 | |
| Product type | Miniature circuit breaker (MCB) | |
| Rated current | 32 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 | |
| Rated insulation voltage | 500 V | |
| Impulse withstand voltage | 6 kV | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Dimensions (H × W × D) | approx. 88 × 52.5 × 69 mm | |
| Weight | approx. 372 g | |
| HS Code | 85362010 | |
| Country of Manufacture | Germany |
Frequently Asked Questions
What is the ABB S303P-B32 used for?
It protects three-phase electrical circuits against overloads and short circuits in industrial, commercial and OEM electrical installations.
What is the rated current of this circuit breaker?
The ABB S303P-B32 has a 32 A rated current.
What does the B curve tripping characteristic mean?
The B curve provides rapid magnetic tripping, making it suitable for lighting circuits and resistive electrical loads with relatively low inrush currents.
What is the short-circuit breaking capacity?
The S303P-B32 provides a 25 kA short-circuit breaking capacity for demanding industrial and commercial electrical installations.
How is the ABB S303P-B32 installed?
The miniature circuit breaker is designed for installation on a standard 35 mm DIN rail inside switchboards, distribution boards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted by electricians, panel builders and industrial engineers for delivering reliable circuit protection, outstanding electrical performance and long service life.
