Why Choose the ABB S303P-C32NA Miniature Circuit Breaker?
The ABB S303P-C32NA, product code 2CDS383103R0324, is a high-performance miniature circuit breaker (MCB) designed to protect demanding industrial electrical installations against overloads and short circuits. As part of the robust ABB System pro M compact S300P series, it delivers dependable circuit protection, high breaking capacity and reliable operation in distribution boards, machinery and control-panel applications.
This miniature circuit breaker uses a thermal tripping mechanism to provide overload protection and an electromagnetic mechanism for rapid short-circuit protection. Its Type C tripping characteristic allows it to accommodate moderate inrush currents, making it suitable for circuits supplying motors, transformers, fluorescent lighting, control equipment and other inductive electrical loads.
With a rated current of 32 A, a 3P+N configuration and a rated operational voltage of 415 V AC, the S303P-C32NA is ideal for three-phase electrical systems requiring simultaneous neutral switching. Its high breaking capacity of 25 kA at 415 V AC, compact DIN rail format and compatibility with ABB modular accessories support safe, flexible and efficient panel construction.
Key Advantages
- Reliable overload and short-circuit protection for industrial installations.
- 32 A rated current for distribution, machinery and control circuits.
- Type C tripping characteristic suitable for moderate inrush currents.
- 3P+N configuration with three protected phases and a switched neutral.
- High 25 kA breaking capacity at 415 V AC.
- Compact DIN rail design for straightforward control-panel installation.
Key Features
- ABB System pro M compact S300P series.
- 32 A nominal current rating.
- Type C instantaneous tripping characteristic.
- Three protected poles plus switched neutral.
- Rated operational voltage of 415 V AC.
- Rated ultimate short-circuit breaking capacity of 25 kA at 415 V AC.
- Suitable for AC and DC electrical applications.
- Screw terminals suitable for rigid and flexible conductors.
High-Capacity Protection for Industrial Circuits
Miniature circuit breakers automatically disconnect an electrical circuit when an overload or short circuit is detected. The thermal release responds to prolonged overcurrent conditions, while the electromagnetic release provides rapid isolation during high fault currents, helping protect cables, machinery and connected electrical equipment.
The Type C characteristic of the ABB S303P-C32NA is suited to circuits with moderate starting currents. Combined with its high short-circuit breaking capacity and 3P+N configuration, the breaker provides dependable protection for three-phase industrial distribution systems where neutral isolation is also required.
Typical Applications
- Industrial distribution boards and control panels.
- Three-phase machinery and production equipment.
- Motors, transformers and inductive electrical loads.
- Commercial building distribution systems.
- Automation and manufacturing installations.
- Circuits requiring three-phase protection and neutral switching.
