ABB FS401MK-C20/0.03

The ABB FS401MK-C20/0.03 is a globally supplied automatic differential current circuit breaker designed to detect earth leakage currents and enhance electrical safety in industrial installations. Its primary function is to interrupt circuit operation upon detecting imbalances, preventing potential hazards such as electric shocks and fire risks.

Key Technical Features and Applications of FS401MK-C20/0.03

• Differential current detection with 30 mA sensitivity enables rapid disconnection to protect personnel and equipment from leakage currents.
• Rated current of 20 A supports medium-load circuits commonly found in industrial electrical panels.
• Automatic tripping mechanism ensures consistent response to residual current faults, reducing manual maintenance requirements.
• Compact modular design facilitates integration into standard distribution boards, saving panel space and simplifying installation.

Contextual Use Cases

This circuit breaker is essential in manufacturing plants where grounding faults can compromise operational safety. It is also crucial in facilities requiring precise leakage detection to meet stringent electrical safety standards.