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S704 Relay Wire Sizing

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piavis(at)comcast.net
Guest

Posted: Thu Dec 21, 2006 6:47 pm Post subject: S704 Relay Wire Sizing

In sizing wires per the Z-13 diagram on the S704 relay for the SD-8, most of the wires supporting the SD-8 are 12AWG. For the jumper from the + side of the contactor on the relay, to the COM tab, can I use something as low as an 18 or 20 AWG wire for this, I’m not sure of the current flow through this. Based on other posts on the subject, there’s only about .1A on the line from the contactor ground tab through to the breaker and switch, so I should be able to go to a much smaller wire here.   

Thanks,  

Jim  

-7   

Redmond, WA     [quote][b]

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klehman(at)albedo.net
Guest

Posted: Fri Dec 22, 2006 6:50 pm Post subject: S704 Relay Wire Sizing

Hi Jim

Yes I agree with you. Since the coil circuit has a 5 amp CB in it I 

think you could go all the way down to 22awg if you wanted.

I also think that 12awg is appropriate for the 20 amp alternator but 

overkill for an 8 amp unit.

Ken



PIAVIS wrote:



 	  Quote: 	
		   In sizing wires per the Z-13 diagram on the S704 relay for the SD-8, 

 most of the wires supporting the SD-8 are 12AWG. For the jumper from 

 the + side of the contactor on the relay, to the COM tab, can I use 

 something as low as an 18 or 20 AWG wire for this, Im not sure of the 

 current flow through this. Based on other posts on the subject, 

 theres only about .1A on the line from the contactor ground tab 

 through to the breaker and switch, so I should be able to go to a much 

 smaller wire here.



 Thanks,



 Jim



 -7



 Redmond, WA

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piavis(at)comcast.net
Guest

Posted: Mon Dec 25, 2006 9:06 pm Post subject: S704 Relay Wire Sizing

 	  Quote: 	
		  Thanks Ken, That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. Jim Hi JimYes I agree with you. Since the coil circuit has a 5 amp CB in it I think you could go all the way down to 22awg if you wanted.I also think that 12awg is appropriate for the 20 amp alternator but  	
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		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
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		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
1 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
2 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
3 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
4 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
5 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
6 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
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		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
8 	  Quote: 	
		  That’s what I had figured but can’t find any concrete info in the archives. I was hoping to get a reading from Bob on this one. I’ve noticed a lot of questions on the S704 in the archives but nothing indicating wire sizing as used with the SD-8. 	
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       [quote][b]

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