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Ground Fault and Neutral Grounding Resistor Monitor: The RC48N is specifically designed for the mining industry to monitor high resistance grounded systems up to 5 kV AC. In addition, the RC48N monitors the voltage between the transformer's neutral and ground, as well as monitoring the grounding resistor for continuity. Residual current response values may be set between the ranges of 0.1 A to 1 A and 1 A to 10 A.
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