NLM4 Neutral Link Monitor

Leaders in Innovative Protection Systems, Inelco International’s NLM4 is compliant to the latest statutory and industry standards. The Inelco International Neutral Link Monitor relay (NLM4) is a NER integrity protection device designed to continuously monitor the current limitation system on the secondary star point to earth connection of a supply transformer. The unit can also be utilized to monitor a direct connection to earth from the star point. The NLM4 monitors the NER Resistance integrity, excess phase voltage rise, neutral earth leakage current, with the ability to adjust trip times for protection coordination. The NLM4 offers a Remote Screen that takes your fault indication and controls from the inside of your panel to the outside where it is more visible. Yet your heavy power wiring stays inside the panel preventing thick wiring bundles going out to the door. The EL4 and EL4R are interconnected with a ribbon cable that is available in different lengths. (Custom made lengths are available on request)

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NLM4-Neutral-Link-Monitor-rev1-2019.pdf