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.
