It is a safety device designed to protect people against electric shock in electrical circuits. It constantly monitors the phase and neutral currents in the circuit, and when it detects an imbalance (leakage current) between these currents, it automatically cuts o the electrical flow and makes the circuit safe. It helps prevent electrical fires as well as electric shocks. It is available in the range of 30mA-300mA, from 6A to 100A, including AC and A type
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