Why Choose the ABB S303P-K32 Miniature Circuit Breaker?
The ABB S303P-K32 (2CDS383001R0537) is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in demanding industrial electrical installations. As part of the proven ABB S300P series, it combines robust construction, high fault-breaking capacity and dependable switching performance for three-phase industrial applications.
Manufactured in accordance with recognised IEC and UL standards, the S303P-K32 is suitable for industrial control panels, switchgear assemblies and power distribution systems. Its compact modular design, fail-safe terminals and DIN rail mounting simplify installation while ensuring long-term operational reliability.
With a rated current of 32 A, a Type K tripping characteristic and a rated short-circuit breaking capacity of 25 kA, this circuit breaker is ideally suited to protecting motors, transformers, solenoids and other inductive loads with high starting currents.
Key Advantages
- Reliable overload and short-circuit protection.
- 32 A rated current for demanding three-phase circuits.
- Type K tripping characteristic for inductive loads with high inrush currents.
- 25 kA breaking capacity for industrial installations.
- Three protected poles provide dependable three-phase protection.
- Compact DIN rail design for straightforward installation.
Key Features
- ABB S300P series.
- Three-pole configuration.
- 32 A rated current.
- Type K tripping characteristic.
- Rated operating voltage up to 415 V AC.
- Rated operating voltage up to 125 V DC.
- 25 kA rated short-circuit breaking capacity.
- Fail-safe screw terminals.
- Top or bottom supply connection.
- Compatible with ABB System pro M Compact accessories.
Reliable Protection for Motors and Inductive Loads
The ABB S303P-K32 automatically disconnects electrical circuits during overload or short-circuit conditions, helping protect motors, transformers, cables and connected equipment from damage while reducing costly downtime.
Its Type K tripping characteristic is specifically designed to accommodate the higher inrush currents generated by motors and inductive equipment, reducing nuisance tripping while maintaining dependable fault protection.
Typical Applications
- Three-phase motor protection.
- Industrial control panels.
- Machine building and OEM equipment.
- Transformers and inductive loads.
- Industrial power distribution.
- Manufacturing and automation systems.
