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Product Detailed Parameters
- Description：TAPE WOUND CT WITH 400/5A
- Series：TWCT
- Mfr：Selec Controls USA Inc.
- Package：Box
- Frequency Range：50Hz ~ 60Hz
- Type：Non-Invasive (Solid Core)
- Inductance：-
- ET (Volt-Time)：-
- Current Ratio：400:05:00
- DC Resistance (DCR)：-
- Ratings：-
- Mounting Type：Free Hanging (In-Line)
- Size / Dimension：3.937" L x 3.543" W (100.00mm x 90.00mm)
- Height - Seated (Max)：0.984" (25.00mm)
- Termination Style：Wire Leads
- Turns Ratio - Primary:Secondary：-
- Current Rating (Amps)：-
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Overview
The Selec TWCT-T-D55-400/5A-VA5-CL1 is a tape wound current transformer designed for precise electrical current measurement. It features a primary current rating of 400A and a secondary output of 5A. The unit has an inner diameter of 55mm, accommodating conductors up to this size. It operates at frequencies between 50Hz and 60Hz with a rated burden of 5VA. The accuracy class is designated as Class 1, complying with the IEC 61869-2 standard. The device utilizes terminal output and is constructed for free-hanging in-line installation.
Feature Summary
- Tape wound construction for high precision
- Terminal output configuration
- IEC 61869-2 compliance
Applications
- Industrial automation systems
- Electrical control panels
- Power monitoring equipment
Procurement Notes
Verify the specific part number suffixes against official Selec documentation to ensure correct accuracy class, burden rating, and aperture size. Confirm that the application environment matches the thermal nominal continuous current specifications. Cross-reference the IEC standard compliance requirements with local regulatory needs before finalizing procurement orders.
Selection Notes
Select this model when a 400A primary current range and 55mm wire aperture are required. Ensure the connected load does not exceed the 5VA rated burden to maintain Class 1 accuracy. Verify compatibility with 50Hz or 60Hz system frequencies. Consider the free-hanging in-line mounting style for integration into existing busbar or cable setups.
Part Context
This component belongs to the Selec TWCT series of tape wound current transformers. The series offers various ratios from 30A to 1600A and multiple accuracy classes. The D55 designation indicates the specific 55mm inner diameter variant within this product line.
Replacement Considerations
Direct substitutes must match the 400/5A ratio, 55mm aperture, 5VA burden, and Class 1 accuracy. Verify interface type and mounting constraints. Consult manufacturer cross-reference lists for verified equivalents.
