ABB FS403M-C20/0.03

The ABB FS403M-C20/0.03 is an automatic differential circuit breaker widely utilized in industrial electrical systems for reliable fault detection and protection. Distributed globally, this device is engineered to safeguard electrical circuits by interrupting current flow upon detecting differential currents indicative of ground faults or leakage.

Key Technical Features and Applications of FS403M-C20/0.03

• Differential protection capability enables prompt disconnection during earth leakage, reducing risk of electrical shock and fire hazards in industrial installations.
• Rated for 20 A current with a sensitivity of 30 mA supports both personnel safety and equipment integrity in harsh operational environments.
• Compact design allows integration into existing distribution boards without extensive modifications, optimizing space and maintenance.
• Automatic trip function ensures immediate response to fault conditions, enhancing overall system reliability and minimizing downtime.

This circuit breaker is essential in manufacturing plants and commercial facilities where continuous monitoring of electrical leakage currents is critical for maintaining operational safety and compliance with electrical standards.