NO
Normally open contact
A contact shown open in the normal state defined for its device.
Schematic
Symbols · NO EARLY
Early-make normally-open contact
An early-make NO contact closes earlier in the mechanism sequence than specified associated contacts.
Schematic · NO EARLY
What it represents
An early-make NO contact closes earlier in the mechanism sequence than specified associated contacts. The relative sequence is meaningful only when the linked contacts and common operator are identified.
How to read it
- Compare the contact timing against the other poles of the same device.
- 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
- Link common operator
- Identify comparison contacts
- Document switching sequence
A distinction that matters
Early make is a relative operating sequence, not a fixed millisecond time delay.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Relays and contacts: public symbol reference
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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