KM
Contactor
An electrically operated switching device commonly used for repeated switching duties.
SLD / Schematic
IEC · KM
IEC motor-starter form: motor starter coil
Motor-starter form form: Motor Starter Coil.
In plain English
What does IEC motor-starter form: motor starter coil mean?
A motor starter uses an operating coil and power contacts to control the motor feeder. The coil belongs to the control circuit; the main contacts carry motor current. Auxiliary contacts report or interlock operation but do not replace the main poles. This entry identifies the motor starter coil form in the publisher's IEC-context family.
A simple example
A start command can energise the starter coil while the linked main poles connect the motor supply. Reuse the same device tag on the coil and contacts, then cross-reference overload and short-circuit protection as distinct parts of the feeder.
What the drawings help you do
The contact illustration is a functional view of one pole, not a complete motor starter or a proof of fault protection. Coil voltage, duty, overload coordination and the number of linked poles come from the chosen equipment and design.
This particular reference
Motor-starter form form: Motor Starter Coil. This entry adds the motor starter coil detail to the broader motor-starter form family. The contact illustration is a functional view of one pole, not a complete motor starter or a proof of fault protection. Coil voltage, duty, overload coordination and the number of linked poles come from the chosen equipment and design.
- 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.
- Rating
- A value stating the conditions for which equipment is specified.
Read the source: Autodesk IEC-60617 Symbol Preview: Motor Starters
IEC · Motor Starter Coil
Autodesk IEC-60617 Symbol Preview: Motor Starters, HMS1 / VMS1. This identifies the publisher's library context; exact IEC graphics and database identities are not asserted.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · KM
What it represents
A motor starter uses an operating coil and power contacts to control the motor feeder. The coil belongs to the control circuit; the main contacts carry motor current. Auxiliary contacts report or interlock operation but do not replace the main poles. This entry identifies the motor starter coil form in the publisher's IEC-context family.
A start command can energise the starter coil while the linked main poles connect the motor supply. Reuse the same device tag on the coil and contacts, then cross-reference overload and short-circuit protection as distinct parts of the feeder.
The contact illustration is a functional view of one pole, not a complete motor starter or a proof of fault protection. Coil voltage, duty, overload coordination and the number of linked poles come from the chosen equipment and design.
How to read it
- A start command can energise the starter coil while the linked main poles connect the motor supply. Reuse the same device tag on the coil and contacts, then cross-reference overload and short-circuit protection as distinct parts of the feeder.
- The contact illustration is a functional view of one pole, not a complete motor starter or a proof of fault protection. Coil voltage, duty, overload coordination and the number of linked poles come from the chosen equipment and design.
Information to show or reference
- Use one starter tag across coil, main poles and auxiliaries.
- Identify the control supply and the main power path.
- Reference motor protection and the complete pole arrangement.
A distinction that matters
This entry adds the motor starter coil detail to the broader motor-starter form family. The contact illustration is a functional view of one pole, not a complete motor starter or a proof of fault protection. Coil voltage, duty, overload coordination and the number of linked poles come from the chosen equipment and design.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEC-60617 Symbol Preview: Motor Starters
Public Motor Starters table explicitly lists HMS1 / VMS1 with this operating or connection form. Vendor graphics are linked, not copied.
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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