CT test
CT test terminal
A current-transformer terminal arrangement providing documented test and shorting facilities.
Schematic
Symbols · Terminal
Terminal connection
An identified electrical connection point linking schematic and wiring information.
Schematic · Terminal
What it represents
A terminal representation identifies a connection point for conductors. The terminal number and strip or assembly identifier link the schematic to physical wiring documentation. A wire number and terminal number identify different things and should not be substituted for one another.
Terminal assemblies can include links, disconnect facilities, fuses or test access. Those properties require additional identification. A generic round terminal representation does not establish the construction or rating of a selected terminal block.
How to read it
- Read the strip identifier and terminal identifier together.
- Check whether the representation denotes a simple connection or an additional device function.
Information to show or reference
- Match the terminal schedule.
- Keep wire and terminal numbers distinct.
- Reference links, test facilities and device data where applicable.
A distinction that matters
An electrical junction and a physical terminal are different concepts. A connection dot alone does not necessarily identify a terminal block.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Terminal symbol and numbering variants
Public terminal-number and wire-number variants.
Disconnect and knife-disconnect terminal blocks
Manufacturer example of terminals with added disconnect functions.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
Explore related references
Terminal strip
Terminal strip assembly
A physical assembly of identified terminals and the selected connecting accessories.
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NO
Normally open contact
A contact shown open in the normal state defined for its device.
Schematic
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Protective earth
An identified connection serving the protective earthing function.
SLD / Schematic
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