IEEE / ANSI · K D LED

ANSI/IEEE Relay coil with diode and LED form

IEEE-library form of relay coil with diode and led: a relay assembly with diode and LED combines coil transient suppression and a visible energisation indicator.

In plain English

What does ANSI/IEEE Relay coil with diode and LED form mean?

This reference locates relay coil with diode and led in Autodesk's IEEE-oriented relays with suppression family. A relay assembly with diode and LED combines coil transient suppression and a visible energisation indicator. The schematic must identify both auxiliary functions without treating the LED as proof of contact movement. The public library uses HCR1K35 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.

Identify the device and formRead the connections and stateCheck the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

What the drawings help you do

The indicator reports its own electrical condition, not necessarily the mechanical contact state. An illuminated coil indicator is different from an auxiliary contact confirming device position. 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 relay coil with diode and led: a relay assembly with diode and LED combines coil transient suppression and a visible energisation indicator. An illuminated coil indicator is different from an auxiliary contact confirming device position.

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 with Suppression

IEEE / ANSI · Relay with Integrated Block Diode and Integrated LED

Autodesk IEEE Symbol Preview: Relays with Suppression, block HCR1K35. 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 D LEDANSI/IEEE Relay coil with diode and LED form: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

What it represents

This reference locates relay coil with diode and led in Autodesk's IEEE-oriented relays with suppression family. A relay assembly with diode and LED combines coil transient suppression and a visible energisation indicator. The schematic must identify both auxiliary functions without treating the LED as proof of contact movement. The public library uses HCR1K35 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.

The indicator reports its own electrical condition, not necessarily the mechanical contact state. An illuminated coil indicator is different from an auxiliary contact confirming device position. 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

  • The indicator reports its own electrical condition, not necessarily the mechanical contact state.
  • 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

  • Show coil polarity
  • Identify indicator circuit
  • Reference actual contact feedback

A distinction that matters

An illuminated coil indicator is different from an auxiliary contact confirming device position.

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 with Suppression

Public IEEE-oriented Relays with Suppression table explicitly lists HCR1K35 as Relay with Integrated Block Diode and Integrated LED. This supports the vendor convention context, not reproduction of the publisher graphic.

Autodesk · Public reference checked 14 October 2026 · Link only

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.

Entry JSON · Entry Markdown · Last editorial update: 28 October 2026

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