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Residual-current device

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Residual-current device

In this category, customers can find a comprehensive selection of residual-current devices and related accessories from leading manufacturers such as ABB, Hager, Eaton, Schneider Electric, and Siemens. These devices are crucial for electrical safety, offering protection against hazardous fault currents. The range includes various types of circuit breakers, residual current protection blocks, and specialized switches designed to enhance the safety and reliability of electrical installations. Whether for industrial, commercial, or residential applications, a suitable solution for robust electrical protection is available.

The product type encompasses several important subtypes, each with distinct functionalities. Auxiliary switches provide additional signaling capabilities for circuit breakers, indicating their operational status. Miniature circuit breakers (MCBs) protect against overcurrents and short circuits, while residual current circuit breakers (RCCBs), also known as fault current circuit breakers, detect and interrupt earth leakage currents. The combination of these, such as miniature circuit-breaker/residual current circuit-breaker combinations (RCBOs), offers both overcurrent and residual current protection in a single device. Specialized options like LS fire protection switches and FI fire protection switches integrate advanced detection mechanisms to prevent electrical fires, while motor protection switches are tailored to safeguard motors from overload and phase failure.

When selecting a residual-current device, several properties are important for filtering and finding the ideal product. The "Tripping characteristic" (e.g., C) defines how quickly the device reacts to overcurrents, with different curves suited for various load types. The "Residual current" (e.g., 0.03 Ampere) specifies the maximum leakage current the device will tolerate before tripping, a lower value indicating higher sensitivity and protection. Finally, the "Rated voltage" (e.g., 400 Volt) indicates the maximum voltage the device is designed to safely operate at. By carefully considering these parameters, customers can effectively narrow down their choices and select a residual-current device that precisely meets the requirements of their electrical system, ensuring optimal safety and performance. 

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