SSR
Solid-state relay
A solid-state relay switches an output through semiconductor circuitry in response to a control input.
Schematic
IEEE / ANSI · SSR
ANSI/IEEE Solid-state relay form
IEEE-library form of solid-state relay: a solid-state relay switches an output through semiconductor circuitry in response to a control input.
In plain English
What does ANSI/IEEE Solid-state relay form mean?
This reference locates solid-state relay in Autodesk's IEEE-oriented relays and contacts family. A solid-state relay switches an output through semiconductor circuitry in response to a control input. Control isolation, output type and leakage depend on the chosen product. The public library uses HCR1SSD 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
Distinguish the low-power input terminals from the load-side output terminals. An SSR has no ordinary mechanical contact gap and must not be treated as a disconnector. 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 solid-state relay: a solid-state relay switches an output through semiconductor circuitry in response to a control input. An SSR has no ordinary mechanical contact gap and must not be treated as a disconnector.
- 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 · Solid State
Autodesk IEEE Symbol Preview: Relays and Contacts, block HCR1SSD. 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 · SSR
What it represents
This reference locates solid-state relay in Autodesk's IEEE-oriented relays and contacts family. A solid-state relay switches an output through semiconductor circuitry in response to a control input. Control isolation, output type and leakage depend on the chosen product. The public library uses HCR1SSD 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.
Distinguish the low-power input terminals from the load-side output terminals. An SSR has no ordinary mechanical contact gap and must not be treated as a disconnector. 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
- Distinguish the low-power input terminals from the load-side output terminals.
- 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 output AC or DC type
- State input operating range
- Reference leakage and load limits
A distinction that matters
An SSR has no ordinary mechanical contact gap and must not be treated as a disconnector.
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 HCR1SSD as Solid State. 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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