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The TWCT-T-D35-100/5A-VA5-CL1 is a tape wound current transformer manufactured by Selec Controls USA Inc. It features a rated primary current of 100A and a secondary output of 5A. The device operates at frequencies between 50Hz and 60Hz with an accuracy class of 1. It has a rated burden capacity of 5VA and an inner diameter of 35mm. Designed for free-hanging in-line installation, it complies with IEC 61869-2 standards.
Verify the complete part number including suffixes such as VA rating and accuracy class when ordering. Confirm that the inner diameter matches the conductor size requirements. Ensure the application frequency aligns with the 50Hz to 60Hz operational range specified for this component type.
Select this model when a 100A primary to 5A secondary ratio is required for accurate energy measurement. The 35mm inner diameter suits specific cable sizes. Choose Class 1 accuracy for standard metering applications where higher precision than Class 5 is necessary but extreme laboratory grade is not needed.
This component belongs to the TWCT-T series of tape wound current transformers from Selec. The series offers various primary ratings from 30A to 1600A and multiple inner diameters including 35mm, 55mm, and 65mm. These devices are designed for dry cooled operation and provide reliable current sensing in industrial environments.
Direct substitutes include other Selec models within the TWCT-T-D35 series with matching ratios, such as TWCT-T-D35-150/5A-VA5-CL1, provided the primary current requirement differs. Cross-brand replacements must match the 35mm aperture, 5A secondary output, and Class 1 accuracy specifications.