Why Choose the ABB S303P-Z6NA Miniature Circuit Breaker?
The ABB S303P-Z6NA, product code 2CDS383103R0378, is a high-performance miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. As part of the dependable ABB System pro M compact S300P series, it combines sensitive tripping performance, high breaking capacity and robust construction for demanding control and distribution applications.
Featuring a Type Z tripping characteristic, the S303P-Z6NA is designed for circuits containing sensitive electronic components, semiconductor devices, instrumentation and automation equipment. Its rapid magnetic response helps disconnect fault currents before delicate equipment is damaged, while the thermal release provides reliable protection against sustained overload conditions.
With a rated current of 6 A, a 3P+N configuration and a rated operational voltage of 415 V AC, this miniature circuit breaker is suitable for three-phase industrial systems requiring simultaneous neutral switching. Its 25 kA breaking capacity, DIN rail mounting format and compatibility with ABB System pro M compact accessories make it an excellent choice for modern control panels and electrical distribution boards.
Key Advantages
- Reliable overload and short-circuit protection.
- 6 A rated current for industrial control and electronic circuits.
- Type Z tripping characteristic for sensitive equipment protection.
- 3P+N configuration with three protected phases and switched neutral.
- High 25 kA breaking capacity for demanding installations.
- Compact DIN rail design for straightforward panel installation.
Key Features
- ABB System pro M compact S300P series.
- 6 A nominal current rating.
- Type Z instantaneous tripping characteristic.
- Three protected poles plus switched neutral.
- Rated operational voltage of 415 V AC.
- 25 kA short-circuit breaking capacity.
- Integrated trip indication for easier fault identification.
- Compatible with ABB System pro M compact accessories.
Precision Protection for Sensitive Industrial Circuits
Miniature circuit breakers disconnect electrical circuits automatically when excessive current is detected. The thermal release responds to prolonged overloads, while the electromagnetic release operates rapidly during short circuits, helping protect cables, control equipment and connected electrical devices.
The Type Z characteristic of the ABB S303P-Z6NA provides a particularly sensitive magnetic trip response. This makes the breaker well suited to electronic loads and control circuits where even relatively low fault currents could damage components or disrupt production processes.
Typical Applications
- PLC and industrial automation systems.
- Electronic equipment and semiconductor circuits.
- Instrumentation and measurement systems.
- Industrial control panels and distribution boards.
- OEM machinery and manufacturing equipment.
- Three-phase circuits requiring neutral switching.
