PROX MAG
Magnetic proximity switch
A magnetic proximity switch detects a documented magnetic target or field condition.
Schematic
IEC · MAG
IEC magnetic proximity sensor: normally open 3 wire
Magnetic proximity sensor form: Normally Open 3 Wire.
In plain English
What does IEC magnetic proximity sensor: normally open 3 wire mean?
A magnetic proximity sensor responds to a magnetic field or a target carrying the specified magnet. This entry identifies the normally open 3 wire form in the publisher's IEC-context family.
A simple example
A piston magnet or door-mounted magnet can provide a position indication without direct mechanical contact. The normally-open designation starts with a non-conducting output or open contact in the documented reference condition; operation changes that state. The three-wire form distinguishes supply, return and switching output. Confirm sourcing or sinking operation from the actual sensor circuit before connecting it to an input.
What the drawings help you do
A magnetic sensor can contain a reed contact or powered electronics. The actual output, field orientation and contact ratings must come from the selected device.
This particular reference
Magnetic proximity sensor form: Normally Open 3 Wire. This entry adds the normally open 3 wire detail to the broader magnetic proximity sensor family. A magnetic sensor can contain a reed contact or powered electronics. The actual output, field orientation and contact ratings must come from the selected device.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Terminal
- An identified point where a conductor connects.
- Signal
- Electrical information passed between devices, rather than necessarily the main power supply.
Read the source: AutoCAD Electrical: Magnetic proximity switches
IEC · Normally Open 3 Wire
Autodesk IEC-60617 Symbol Preview: Magnetic Switches, HPX11M3 / VPX11M3. 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 · MAG
What it represents
A magnetic proximity sensor responds to a magnetic field or a target carrying the specified magnet. This entry identifies the normally open 3 wire form in the publisher's IEC-context family.
A piston magnet or door-mounted magnet can provide a position indication without direct mechanical contact. The normally-open designation starts with a non-conducting output or open contact in the documented reference condition; operation changes that state. The three-wire form distinguishes supply, return and switching output. Confirm sourcing or sinking operation from the actual sensor circuit before connecting it to an input.
A magnetic sensor can contain a reed contact or powered electronics. The actual output, field orientation and contact ratings must come from the selected device.
How to read it
- The normally-open designation starts with a non-conducting output or open contact in the documented reference condition; operation changes that state.
- The three-wire form distinguishes supply, return and switching output. Confirm sourcing or sinking operation from the actual sensor circuit before connecting it to an input.
- A magnetic sensor can contain a reed contact or powered electronics. The actual output, field orientation and contact ratings must come from the selected device.
Information to show or reference
- Identify the target, sensing mode and expected normal condition.
- Label supply, output and connector pins from the actual device diagram.
- Reference output circuit type, operating range and controller input.
A distinction that matters
This entry adds the normally open 3 wire detail to the broader magnetic proximity sensor family. A magnetic sensor can contain a reed contact or powered electronics. The actual output, field orientation and contact ratings must come from the selected device.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Magnetic proximity switches
Public Magnetic Switches table explicitly lists HPX11M3 / VPX11M3 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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