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Drawing a 3-position switch to IEC Standard

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Message 1 of 3
draftingV32NW
784 Views, 2 Replies

Drawing a 3-position switch to IEC Standard

Hi, 

 

Just after some guidance on how to use the 3-position switch with IEC standard? 

 

Could you please send some screenshots of how you have implemented this? 

 

I'm not sure I've done it correctly and everyone in the office has a different opinion.

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Message 2 of 3
trabuck7
in reply to: draftingV32NW

This is a symbol provided with a competing ECAD software package, so I'd say you're close.  I'd show the AUTO as a NC since the switch symbol is showing a solid line on the AUTO position.

 

Screenshot 2021-08-04 080530.png


Tyler Rabuck
Electrical Engineering Technician
Message 3 of 3
testsubject
in reply to: draftingV32NW

I do not remember if this was available on the IEC Symbols but on the NFPA symbol there is an attribute for position (STATE)

testsubject_0-1628092005856.png

In this example, the contact would be closed in the left position and open in the right.

testsubject_1-1628092098380.png

This would be your switch for one of the contacts. (Contact is closed in MAN)

testsubject_2-1628092206270.png

 



Bob Hanrahan
Ace User since 1998
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