IEEE / ANSI · HSW1S92

ANSI/IEEE Combined line and phase voltmeter selector form

IEEE-library form of combined line and phase voltmeter selector: this representation identifies a selector covering phase-to-phase and phase-to-neutral voltage measurements.

In plain English

What does ANSI/IEEE Combined line and phase voltmeter selector form mean?

This reference locates combined line and phase voltmeter selector in Autodesk's IEEE-oriented miscellaneous switches family. This representation identifies a selector covering phase-to-phase and phase-to-neutral voltage measurements. One selector covers both line-to-line and line-to-neutral measurements. The measurement function changes with position even though the meter and its physical terminals remain the same. The public library uses HSW1S92 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.

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

List the selected conductor pair or phase/reference path for every position. Use the selected switch’s contact programme instead of inferring connections from the face labels alone. Provide a position table specifying each measurement path. The symbol cannot replace the actual switch contact programme. 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 combined line and phase voltmeter selector: this representation identifies a selector covering phase-to-phase and phase-to-neutral voltage measurements. The symbol cannot replace the actual switch contact programme.

Normally open / normally closed
The contact state in the normal condition defined for the drawing.
Phase
One of the related AC waveforms in a power system.
Terminal
An identified point where a conductor connects.

Read the source: Autodesk IEEE Symbol Preview — Miscellaneous Switches

IEEE / ANSI · 3 Voltage Phase-to-Phase and Phase-to-Neutral Switch

Autodesk IEEE Symbol Preview: Miscellaneous Switches, block HSW1S92. 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 · HSW1S92ANSI/IEEE Combined line and phase voltmeter selector form: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

What it represents

This reference locates combined line and phase voltmeter selector in Autodesk's IEEE-oriented miscellaneous switches family. This representation identifies a selector covering phase-to-phase and phase-to-neutral voltage measurements. One selector covers both line-to-line and line-to-neutral measurements. The measurement function changes with position even though the meter and its physical terminals remain the same. The public library uses HSW1S92 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.

List the selected conductor pair or phase/reference path for every position. Use the selected switch’s contact programme instead of inferring connections from the face labels alone. Provide a position table specifying each measurement path. The symbol cannot replace the actual switch contact programme. 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

  • Provide a position table specifying each measurement path.
  • The symbol cannot replace the actual switch contact programme.

Information to show or reference

  • Identify the associated device, circuit or diagram boundary.
  • Provide a position table specifying each measurement path.
  • Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

A distinction that matters

The symbol cannot replace the actual switch contact programme.

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 — Miscellaneous Switches

Public IEEE-oriented Miscellaneous Switches table explicitly lists HSW1S92 as 3 Voltage Phase-to-Phase and Phase-to-Neutral Switch. 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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