Why Choose the ABB S303P-B8NA Miniature Circuit Breaker?
The ABB S303P-B8NA is a high-performance miniature circuit breaker (MCB) designed for reliable overcurrent and short-circuit protection in industrial and commercial electrical installations. As part of the advanced ABB System pro M compact S300P series, it provides dependable circuit protection with a compact DIN-rail mounting design.
This circuit breaker features a B tripping characteristic, providing fast protection for standard electrical circuits and applications with lower inrush currents. The S300P series combines robust protection technology with flexible installation options for modern electrical distribution systems.
With a rated current of 8 A, a 3P+N configuration with switched neutral and a rated breaking capacity of 25 kA, the ABB S303P-B8NA provides reliable protection for AC electrical circuits requiring enhanced fault interruption performance.
Key Advantages
- Compact miniature circuit breaker for industrial and commercial protection applications.
- 8 A rated current for dependable circuit protection.
- 25 kA rated breaking capacity for reliable fault interruption.
- B tripping characteristic for general electrical protection applications.
- 3P+N design with switched neutral for complete multi-pole AC circuit isolation.
- Compatible with standard DIN-rail mounting systems.
Key Features
- ABB System pro M compact S300P series.
- S303P-B8NA miniature circuit breaker.
- 3P+N configuration with switched neutral.
- B tripping characteristic.
- 8 A rated current.
- 25 kA rated breaking capacity.
- AC circuit protection.
- DIN-rail mounting design for electrical distribution panels.
Reliable Circuit Protection for Industrial Installations
Miniature circuit breakers such as the ABB S303P-B8NA protect electrical circuits by automatically disconnecting the supply during overload or short-circuit conditions. This helps protect wiring, equipment and connected loads from electrical faults.
The ABB S300P series is designed for demanding electrical distribution applications, offering dependable protection performance, compact installation and compatibility with modern control and automation environments.
Typical Applications
- Industrial control panels and electrical cabinets.
- Commercial electrical distribution systems.
- Three-phase electrical distribution systems.
- Automation and machinery installations.
- Building and infrastructure power systems.
- Industrial equipment protection applications.
