Overview
The NCTK-50 is a Chint split-core current transformer of 800 A primary to 5 A secondary with a 50 mm window, for metering large connections together with the DTSU666 meter with external CT inputs in Hyxi installations.
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Use: commercial connections above 250 A where the standard CTs of the DTSU666-TP-250A do not fit or are too light, for example with HYX-125K-ET and Hyxi HYX-EF215P2. The split core clips around the existing busbar or cable without dismantling the installation.
Class 1, rated up to 660 V; three units per three-phase measurement. Always short or connect the secondary circuit before primary current flows, an open secondary produces dangerous voltage.
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