ABB FS401MK-B25/0.03

The ABB FS401MK-B25/0.03 is an automatic differential current circuit breaker designed for reliable protection against earth faults and leakage currents in electrical installations worldwide.

Key Technical Features and Applications of FS401MK-B25/0.03

• Differential current detection ensures rapid disconnection to prevent electric shock hazards in residential and commercial wiring.
• Rated at 25A with a sensitive 30mA trip threshold, enabling precise leakage current monitoring for enhanced safety compliance.
• Compact modular design facilitates integration within standard distribution boards, optimizing space utilization in control panels.
• Enables fault isolation in low-voltage distribution systems, reducing downtime and equipment damage from earth leakage currents.

This device is essential in scenarios requiring user protection from ground faults, such as building electrical networks and industrial automation panels where leakage current monitoring is critical.