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residual current device
(redirected from residual current devices)

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residual current device
A circuit breaker that trips when there is a difference between the amount of current in the hot side and the neutral side. Also called a "ground fault circuit interrupter" (GFCI) and an "appliance leakage current interrupter" (ALCI), the current imbalance implies a leakage to ground or another circuit. Residual current devices (RCDs) are typically built into a wall outlet and are required for wet areas, such as bathrooms and kitchens, where electrical appliances can come in contact with water.


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The component is designed for use inside the world's first fully digital residual current devices (RCD) which were launched by Moeller at a trade show in Frankfurt, Germany, yesterday.
Householders are advised to fit residual current devices (RCDs), which act as trip switches instantly cutting power when a lead is cut.
 
 
 
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