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Current Transformer. GE-ITI Alternate, Ships in 3 Days. Solid core, Split core, Multi ratio, Three Phase, Wound primary.   CT Installation. CT Ratio Modification. CT Safety Procedures. CT Transformer Ratio Modification Techniques.   Current Transformer Cross reference list and prices. Multi Ratio Round/Square Rectangle Split Core Split Core-Low Current Wound Primary Three Phase Potential Transformers Shorting Blocks 4 and 6 pole.   Size the current transformer window by the number and cable diameters. Cable Size Conductor Dia. Cable Size Conductor Dia. 14 0.105 2/0 0.537 12 0.122 3/0 0.588 10 0.153 4/0 0.646 8 0.218 250MCM 0.716 6 0.257 300MCM 0.771 4 0.328 350MCM 0.822 3 0.356 400MCM 0.869 2 0.388 500MCM 0.955 1 0.450 600MCM 1.058 1/0 0.491 750MCM 1.163   1000MCM 1.317 Caution Serious injury can result from electrical shock.  Be sure to turn off the electrical  power before installing any meter and current transformer. Fire can result from loose electrical connections.  Ensure that all electrical connections are secure.  If you do not understand theses  instructions hire an experienced electrician to install the meter for you.  Help is also available from the factory buy phone or email.