Terminal
Terminal connection
An identified electrical connection point linking schematic and wiring information.
Schematic
Symbols · TB LEVEL
Multilevel terminal block
A multilevel terminal carries two or more documented connection levels within one terminal body.
Schematic · TB LEVEL
What it represents
A multilevel terminal carries two or more documented connection levels within one terminal body. Each level needs its electrical identity even when the physical device occupies one terminal-strip position.
How to read it
- Do not connect levels together unless the internal diagram or bridging plan explicitly does so.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- Label every level
- Show internal connections
- Reference physical terminal position
A distinction that matters
Multiple levels do not necessarily share one electrical potential.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Terminal block functional families
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
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.
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