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2CDS383001R0325 ABB S303P-B32 Miniature Circuit Breaker – 3P – B – 32 A
ABB S303P-B32 three-pole miniature circuit breaker with a 32 A rated current, B curve tripping characteristic and 25 kA ultimate breaking capacity for industrial and commercial circuit protection.
£76.11
Why Choose the ABB S303P-B32 Miniature Circuit Breaker?
The ABB S303P-B32 is a premium three-pole 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 fault interruption capability, compact dimensions and proven ABB reliability.
Manufactured in accordance with international IEC, UL and CSA standards, the S303P-B32 is suitable for installation in switchboards, distribution boards and OEM control panels. Its robust switching mechanism, fail-safe terminals and DIN rail mounting ensure straightforward installation and long-term dependable operation.
With a 32 A rated current, a B curve tripping characteristic and a 25 kA ultimate breaking capacity, this circuit breaker is ideal for protecting resistive loads, lighting circuits, socket outlet circuits and cable distribution where low inrush currents are expected.
Key Advantages
- Reliable overload and short-circuit protection for three-phase installations.
- 32 A rated current for commercial and industrial circuits.
- B curve characteristic for resistive loads and low inrush current applications.
- 25 kA ultimate breaking capacity for demanding industrial environments.
- Manufactured to IEC, UL and CSA standards.
- Standard 35 mm DIN rail mounting for quick installation.
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 ultimate short-circuit breaking capacity (Icu).
- IP20 protection rating.
- Suitable for standard 35 mm DIN rail mounting.
Reliable Protection for General Distribution Circuits
The ABB S303P-B32 automatically disconnects electrical circuits during overload or short-circuit conditions, protecting conductors and connected equipment from electrical damage. The B curve characteristic provides fast magnetic tripping for circuits with low inrush currents, making it particularly suitable for lighting, heating and general power distribution.
Designed for demanding industrial environments, the S303P-B32 combines compact dimensions, high breaking performance and long mechanical endurance, making it a trusted solution for professional electrical installations.
Typical Applications
- Commercial electrical distribution boards.
- Industrial switchboards.
- Lighting circuits.
- Socket outlet circuits.
- Cable and conductor protection.
- OEM machinery and control panels.
Technical Specifications
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| Current | 32 A | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | MCB | |
| Trip Curve | B curve | |
| Breaking Capacity | 25 kA | |
| Manufacturer | ABB | |
| Series | System pro M compact S300P | |
| Model | S303P-B32 | |
| SKU | 2CDS383001R0325 | |
| EAN | 4016779077866 | |
| 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 DC operating voltage | 125 V DC | |
| Frequency | 50 / 60 Hz | |
| Breaking capacity (Icn) | 20 kA (IEC 60898-1) | |
| Ultimate breaking capacity (Icu) | 25 kA at 415 V AC (IEC 60947-2) | |
| Rated insulation voltage | 500 V | |
| Impulse withstand voltage | 6 kV | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail | |
| Dimensions (H × W × D) | 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 commercial, industrial and OEM electrical installations.
What is the rated current of the S303P-B32?
The ABB S303P-B32 has a rated current of 32 A.
What does the B curve characteristic mean?
A B curve MCB provides rapid tripping at relatively low fault currents, making it ideal for resistive loads such as lighting, heating and general power distribution circuits.
What is the breaking capacity of this circuit breaker?
The S303P-B32 has a rated short-circuit breaking capacity of 20 kA (Icn) under IEC 60898-1 and an ultimate breaking capacity of 25 kA (Icu) under IEC 60947-2.
How is the ABB S303P-B32 installed?
It is designed for installation on a standard 35 mm DIN rail and can be fitted into distribution boards, switchboards and industrial control panels.
Trusted by Electrical Professionals Worldwide
ABB System pro M compact miniature circuit breakers are trusted worldwide by electricians, panel builders and industrial engineers for dependable protection, high fault performance and long operational life.
