Mar 15, 2010 #1 mshahwan Electrical May 15, 2008 7 is there a standard for the numbering convention for motor starters? like NO/NC contacts, 11-14,12-13, or coil ,A1-A2? thanks in advance
is there a standard for the numbering convention for motor starters? like NO/NC contacts, 11-14,12-13, or coil ,A1-A2? thanks in advance
Mar 15, 2010 #2 dpc Electrical Jan 7, 2002 8,716 That will depend on what standards the gear is built to. In the US, NEMA has standards on this. NEMA ICS-18, IIRC. David Castor http://www.cvoes.com Upvote 0 Downvote
That will depend on what standards the gear is built to. In the US, NEMA has standards on this. NEMA ICS-18, IIRC. David Castor http://www.cvoes.com
Mar 15, 2010 #3 ScottyUK Electrical May 21, 2003 12,915 Probably EN 50013 if you are in Europe, which I think you are looking at the number codes. ---------------------------------- If we learn from our mistakes I'm getting a great education! Upvote 0 Downvote
Probably EN 50013 if you are in Europe, which I think you are looking at the number codes. ---------------------------------- If we learn from our mistakes I'm getting a great education!
Mar 31, 2010 Thread starter #4 mshahwan Electrical May 15, 2008 7 I found some explanation in NEMA ICS 2.4 which explains the difference between NEMA and IEC motor control devices. NEMA has no numbering convension for control terminals IEC NC Contact 11 12 first digit designate sequence of control terminal second designals NC contact 23 24 first digit disignates sequence of control terminal second designates NC contact A1 A2 coil terminal markings Anybody know the exact standard for IEC that specifies this? Upvote 0 Downvote
I found some explanation in NEMA ICS 2.4 which explains the difference between NEMA and IEC motor control devices. NEMA has no numbering convension for control terminals IEC NC Contact 11 12 first digit designate sequence of control terminal second designals NC contact 23 24 first digit disignates sequence of control terminal second designates NC contact A1 A2 coil terminal markings Anybody know the exact standard for IEC that specifies this?
