HSV21
Solenoid-valve NO auxiliary contact
This form identifies a normally-open auxiliary contact associated with a solenoid valve.
IEC
IEEE / ANSI · HSV21
ANSI/IEEE Solenoid-valve NO auxiliary contact form
IEEE-library form of solenoid-valve no auxiliary contact: this form identifies a normally-open auxiliary contact associated with a solenoid valve.
In plain English
What does ANSI/IEEE Solenoid-valve NO auxiliary contact form mean?
This reference locates solenoid-valve no auxiliary contact in Autodesk's IEEE-oriented solenoids family. This form identifies a normally-open auxiliary contact associated with a solenoid valve. The public library uses HSV21 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
What the drawings help you do
Cross-reference the operating mechanism or valve tag and state which position the contact reports. An auxiliary contact is not the power terminal of the solenoid coil. Cross-reference the operating mechanism or valve tag and state which position the contact reports. An auxiliary contact is not the power terminal of the solenoid coil. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
This particular reference
IEEE-library form of solenoid-valve no auxiliary contact: this form identifies a normally-open auxiliary contact associated with a solenoid valve. An auxiliary contact is not the power terminal of the solenoid coil.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Coil
- A wound conductor that can produce a magnetic field when energised.
- Terminal
- An identified point where a conductor connects.
Read the source: Autodesk IEEE Symbol Preview: Solenoids
IEEE / ANSI · Solenoid Valve Auxiliary Normally Open Contact
Autodesk IEEE Symbol Preview: Solenoids, block HSV21. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · HSV21
What it represents
This reference locates solenoid-valve no auxiliary contact in Autodesk's IEEE-oriented solenoids family. This form identifies a normally-open auxiliary contact associated with a solenoid valve. The public library uses HSV21 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
Cross-reference the actuator or valve tag and state which position the contact reports. An auxiliary contact is not the power terminal of the solenoid coil. Cross-reference the actuator or valve tag and state which position the contact reports. An auxiliary contact is not the power terminal of the solenoid coil. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
How to read it
- Cross-reference the actuator or valve tag and state which position the contact reports.
- An auxiliary contact is not the power terminal of the solenoid coil.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Cross-reference the actuator or valve tag and state which position the contact reports.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
An auxiliary contact is not the power terminal of the solenoid coil.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview: Solenoids
Public IEEE-oriented Solenoids table explicitly lists HSV21 as Solenoid Valve Auxiliary Normally Open Contact. This supports the vendor convention context, not reproduction of the publisher 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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