ABB FS403MK-B32/0.03

ABB FS403MK-B32/0.03 Automatic Differential Current Switch

The ABB FS403MK-B32/0.03 is a differential current switch widely used in industrial automation to detect leakage currents and ensure electrical safety across global installations. This device plays a critical role in protecting electrical circuits by identifying earth faults and preventing equipment damage.

Key Technical Features and Applications of FS403MK-B32/0.03

• Differential current detection with a rated residual operating current of 30 mA enables rapid disconnection to reduce fire and shock hazards in industrial panels.
• Rated current of 32 A supports medium-load circuits common in manufacturing environments and process control systems.
• Enables precise monitoring and disconnection in systems requiring ground fault protection, enhancing overall operational reliability.
• Compact design facilitates integration into existing switchgear setups without significant panel modifications.

Typical applications include safeguarding industrial machinery in production lines and providing critical protection in automation control cabinets where residual current monitoring is mandatory.