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Question about wire sizes

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kearney(at)shaw.ca
Guest

Posted: Mon May 26, 2008 5:43 pm Post subject: Question about wire sizes

Hi  

   

I am trying to get smart about wiring in my a/c. II understand wire gauge sizes but am a bit confused about the wire gauge references on connectors. For example, AMP CPC connectors can take various pin sizes – 24-26ga, 20-24ga, 14-18ga and 16-18ga. Can someone explain the differences between each pin size? If I was using 18ga wire, which pin size would be appropriate?  

   

Inquiring minds need to know….  

   

Les Kearney  

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Sam Hoskins

 Sent: May-26-08 4:40 PM

 To: Aerolectric List

 Subject: Off Topic? Scratch build your own autopilot  

  

   

FYI - I have a very unusual auction going on Ebay for a scratch-build autopilot, and a story that goes with it.  Here's the auction link:

 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720

 

 If that doesn't work just plug  190225235720  into the Ebay search box.

 

 Sorry for the shameless plug.

 

 Sam Hoskins

 Murphysboro, IL   	  Quote: 	
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Dale Ensing

Joined: 11 Jan 2006
Posts: 571
Location: Aero Plantation Weddington NC

Posted: Mon May 26, 2008 6:21 pm Post subject: Question about wire sizes

Les, 

 The nomenclature pertains to the wire gauge to be  used with the various pins not the pins themselves. If is says it is 16-18ga.,  then that is the wire size to be used with that pin. In your case you would use  pins marked for 16-18ga.for your 18ga. wire. 

 If you look at the pins you will see that the pins  for the larger wire gauges (wires with smaller numbers) have a larger hole in  which the wire is inserted and crimped than pins marked for smaller sizes (wires  with larger numbers). This is to assure that you get the proper air tight crimp  on the wire. You will discover that is almost impossible to get a good crimp on  a small wire if you use a pin marked for a larger size wire.

 Dale Ensing 

 [quote]   ---

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_________________
Dale Ensing
RV-6A
Aero Plantation
Weddington NC

hooverra(at)verizon.net
Guest

Posted: Mon May 26, 2008 7:17 pm Post subject: Question about wire sizes

Les,  

            It gets even more confusing when you look at the plating options available and the insulation grip range. The best bet is have the wire specs available when you collect the part numbers so you can get all three parameters correct. It’s not hard just requires close attention. In the CPC series there are also multiple contact gauges, the III+ pins are probably what you will use. In CPC shells there are also reverse shells (pin numbers mirrored) be carefull.   

   

Ralph Hoover  

   

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Les Kearney

 Sent: Monday, May 26, 2008 9:39 PM

 To: aeroelectric-list(at)matronics.com

 Subject: AeroElectric-List: Question about wire sizes  

  

   

Hi  

   

I am trying to get smart about wiring in my a/c. II understand wire gauge sizes but am a bit confused about the wire gauge references on connectors. For example, AMP CPC connectors can take various pin sizes – 24-26ga, 20-24ga, 14-18ga and 16-18ga. Can someone explain the differences between each pin size? If I was using 18ga wire, which pin size would be appropriate?  

   

Inquiring minds need to know….  

   

Les Kearney  

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Sam Hoskins

 Sent: May-26-08 4:40 PM

 To: Aerolectric List

 Subject: Off Topic? Scratch build your own autopilot  

  

   

FYI - I have a very unusual auction going on Ebay for a scratch-build autopilot, and a story that goes with it.  Here's the auction link:

 http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&item=190225235720

 

 If that doesn't work just plug  190225235720  into the Ebay search box.

 

 Sorry for the shameless plug.

 

 Sam Hoskins

 Murphysboro, IL   	  Quote: 	
		     	
[/b]http://www.matronics.com/Navigator?AeroElectric-List 	  Quote: 	
		  [b] 	
http://forums.matronics.com[/b] 	  Quote: 	
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       [quote][b]

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kearney(at)shaw.ca
Guest

Posted: Mon May 26, 2008 8:27 pm Post subject: Question about wire sizes

Dale  

   

To clarify, why couldn’t I use the 14-18ga pins for the 18ga wire?  Do the pins fit a specific gauge or a range of gauges? If not a range, then what does 14-18ga mean versus 16-18ga?   

   

Thanks  

   

Les  

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Dale Ensing

 Sent: May-26-08 8:19 PM

 To: aeroelectric-list(at)matronics.com

 Subject: Re: AeroElectric-List: Question about wire sizes  

  

     

Les,   

    

The nomenclature pertains to the wire gauge to be used with the various pins not the pins themselves. If is says it is 16-18ga., then that is the wire size to be used with that pin. In your case you would use pins marked for 16-18ga.for your 18ga. wire.   

    

If you look at the pins you will see that the pins for the larger wire gauges (wires with smaller numbers) have a larger hole in which the wire is inserted and crimped than pins marked for smaller sizes (wires with larger numbers). This is to assure that you get the proper air tight crimp on the wire. You will discover that is almost impossible to get a good crimp on a small wire if you use a pin marked for a larger size wire.  

    

Dale Ensing   

  [quote]    

---

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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Bob McC

Joined: 09 Jan 2006
Posts: 258
Location: Toronto, ON

Posted: Mon May 26, 2008 10:20 pm Post subject: Question about wire sizes

Les; 

 The pins fit wires within the range marked on  them. 16-18 ga pins fit wires of 16 or 18 (or 17 if you can find it)  gauge. A 14-18 ga pin would fit 14, 16, or 18 gauge wires. (also 15 or  17 if you could find them) (Wire gauges normally change by 2's hence 14, 16, 18  etc, but in rare special cases sometimes the intermediate sizes are made. You'll  likely never find any so don't worry about it.)

 Bob McC

 [quote]   ---

- The Matronics AeroElectric-List Email Forum -

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_________________
Bob McC
Falco #908
(just starting)

hooverra(at)verizon.net
Guest

Posted: Tue May 27, 2008 7:37 am Post subject: Question about wire sizes

Les,  

            The 14-18 is in fact a range. You could use 14-18 on 18 ga or 16-18 on 18 ga wire.  Amp has too many combinations to count but with a little digging you can find a combination of parts that will do what you need. I have attached a link to contact info and a couple of PDF’s that may help.  Pages 398 to 405 of the current digikey catalog may help as well.   

   

   

http://catalog.tycoelectronics.com/TE/bin/TE.Connect?C=1&M=BYPN&TCPN=66360-1&RQPN=66360-1  

   

http://ecommas.tycoelectronics.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Catalog+Page%7F65910_0806_PrecisionPinSockCntcts%7Fn%2Fa%7Fpdf%7FEnglish%7FENG_CAT_65910_0806_PrecisionPinSockCntcts_.pdf  

   

   

Ralph  

   

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Les Kearney

 Sent: Tuesday, May 27, 2008 12:22 AM

 To: aeroelectric-list(at)matronics.com

 Subject: RE: AeroElectric-List: Question about wire sizes  

  

   

Dale  

   

To clarify, why couldn’t I use the 14-18ga pins for the 18ga wire?  Do the pins fit a specific gauge or a range of gauges? If not a range, then what does 14-18ga mean versus 16-18ga?   

   

Thanks  

   

Les  

         

  

From: owner-aeroelectric-list-server(at)matronics.com [mailto:owner-aeroelectric-list-server(at)matronics.com] On Behalf Of Dale Ensing

 Sent: May-26-08 8:19 PM

 To: aeroelectric-list(at)matronics.com

 Subject: Re: AeroElectric-List: Question about wire sizes  

  

     

Les,   

    

The nomenclature pertains to the wire gauge to be used with the various pins not the pins themselves. If is says it is 16-18ga., then that is the wire size to be used with that pin. In your case you would use pins marked for 16-18ga.for your 18ga. wire.   

    

If you look at the pins you will see that the pins for the larger wire gauges (wires with smaller numbers) have a larger hole in which the wire is inserted and crimped than pins marked for smaller sizes (wires with larger numbers). This is to assure that you get the proper air tight crimp on the wire. You will discover that is almost impossible to get a good crimp on a small wire if you use a pin marked for a larger size wire.  

    

Dale Ensing   

  [quote]    

---

- The Matronics AeroElectric-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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