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Extenal Neutral CT for NSX Micrologig 6.2 E

The ENCT (External Neutral Current Transformer) in NSX or the External Neutral Sensor in the ACB's is required depending on your application / requirement. If you need Neutral protection or Earth Fault Protection / Ground Fault Protection then the Neutral CT is mandatory with 3P NSX or 3P ACB's.  If you have 4 pole breaker then the external neutral is not required. 
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