ABB FS401MK-C20/0.3

The ABB FS401MK-C20/0.3 is an automatic residual current circuit breaker designed to provide reliable protection against earth leakage currents in electrical installations worldwide. This device ensures enhanced safety by detecting differential currents and promptly disconnecting power to prevent electric shock and fire hazards.
Key Technical Features and Applications of FS401MK-C20/0.3
- Equipped with sensitive residual current detection (0.3 A threshold) to ensure rapid disconnection in fault conditions, safeguarding personnel and equipment.
- Rated at 20 A, allowing integration into medium-capacity circuits commonly found in industrial and commercial settings.
- Compact design facilitates installation in low-voltage distribution panels with limited space.
- Provides selective disconnection to isolate faulty circuits without interrupting overall system operation.
In industrial environments, the FS401MK-C20/0.3 is essential for protecting machinery in production lines and securing office or control room electrical networks from residual current faults.
Full Support for Every Part We Supply
Product Details for FS401MK-C20/0.3
Check out other ABB products








If you didn't find the automation part you were looking for, our support team is here to help. Just contact us, and we'll do our best to source the exact part you need. We're committed to meeting your needs and ensuring your satisfaction.
Contact Us Now