K FAST
High-speed relay
A high-speed relay has a documented operating response intended for duties where relay timing matters.
Schematic
IEEE / ANSI · K FAST
ANSI/IEEE High-speed relay form
IEEE-library form of high-speed relay: a high-speed relay has a documented operating response intended for duties where relay timing matters.
In plain English
What does ANSI/IEEE High-speed relay form mean?
This reference locates high-speed relay in Autodesk's IEEE-oriented relays and contacts family. A high-speed relay has a documented operating response intended for duties where relay timing matters. Schematics need the specific model and circuit role rather than an unqualified speed claim. The public library uses HCR1HSP for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Trace the measured quantity or initiating control signal separately from the output contacts. The device tag links the sensing or operating element to the controlled circuit; settings, reset behaviour and the actual terminal arrangement belong in the selected equipment documentation.
What the drawings help you do
Read operate and release times under the specified coil and contact conditions. High-speed classification does not imply a complete protection scheme's total clearing time. 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 high-speed relay: a high-speed relay has a documented operating response intended for duties where relay timing matters. High-speed classification does not imply a complete protection scheme's total clearing time.
- 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 — Relays and Contacts
IEEE / ANSI · High Speed
Autodesk IEEE Symbol Preview: Relays and Contacts, block HCR1HSP. 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 · K FAST
What it represents
This reference locates high-speed relay in Autodesk's IEEE-oriented relays and contacts family. A high-speed relay has a documented operating response intended for duties where relay timing matters. Schematics need the specific model and circuit role rather than an unqualified speed claim. The public library uses HCR1HSP for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Trace the measured quantity or initiating control signal separately from the output contacts. The device tag links the sensing or operating element to the controlled circuit; settings, reset behaviour and the actual terminal arrangement belong in the selected equipment documentation.
Read operate and release times under the specified coil and contact conditions. High-speed classification does not imply a complete protection scheme's total clearing time. 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
- Read operate and release times under the specified coil and contact conditions.
- 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
- Name relay model
- Reference operate and release data
- Show controlled circuit
A distinction that matters
High-speed classification does not imply a complete protection scheme's total clearing time.
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 — Relays and Contacts
Public IEEE-oriented Relays and Contacts table explicitly lists HCR1HSP as High Speed. 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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