A ground fault current sensor, also known as a residual current device (RCD) or residual current circuit breaker, is designed to protect people and equipment from electric shock and prevent fires caused by current leakage.
Main functions Detection of current leakage
The device monitors the difference between the current entering the circuit and the current leaving it. If this difference exceeds the set threshold (usually 30 mA for human protection), the RCD disconnects the circuit.
Protection against electric shock: Helps prevent dangerous situations associated with human contact with live parts.
Fire prevention: Eliminates the risk of fire caused by current leakage.
Application In residential premises
Installed in distribution panels to protect electrical appliances and users.
In industrial facilities: Used to protect equipment and employees on production lines.
Installation and maintenance:Professional installation: It is recommended to entrust installation to qualified electricians.
Regular checks: It is necessary to periodically check the device's functionality using test buttons, if provided.
The use of earth leakage current sensors significantly increases the safety of electrical networks and protects people from electric injuries.
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