AWG 1 vs. AWG 1/0

Dec 28, 2010
462
Catalina 380 san pedro
Just to warn some of you out there. I recently purchased a bunch of rather expensive terminal ends while moving my #2 house battery back to it's original location beneath the galley floor boards. I got them at WM and they were clearly marked 1/0. While trying to install them this morning I was having heck of a time and decided to call a halt to the project. I visited Cap'ns locker in Long Beach and while there just for hah's took a look at the same fittings that they had. Lo and behold they are actually made for 1/0 cable. I will be contacting the home office of WM and letting them know that there Vendor is in error. The packages were all marked 1/0 and unopened.:yikes:
 
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Likes: Rick D
Feb 17, 2006
5,130
Lancer 27PS MCB Camp Pendleton KF6BL
I'm confused (not hard to confuse me, really). Are you saying that the connectors you purchased from WM marked 1/0 were too small for the 1/0 cable you have?
 

DaveJ

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Apr 2, 2013
381
Catalina 310 Niagara-on-the-Lake
Not sure if this is the issue, but extra fine stranded cable is slightly larger than regular strand cable, and the connector (ring terminal?) should be sized accordingly. But looking at the title of this thread, are you referring the difference between #1 AWG and 1/O AWG? There is a difference, 1/O is one wire size larger.
 
Feb 6, 1998
11,454
Canadian Sailcraft 36T Casco Bay, ME
Just to warn some of you out there. I recently purchased a bunch of rather expensive terminal ends while moving my #2 house battery back to it's original location beneath the galley floor boards. I got them at WM and they were clearly marked 1/0. While trying to install them this morning I was having heck of a time and decided to call a halt to the project. I visited Cap'ns locker in Long Beach and while there just for hah's took a look at the same fittings that they had. Lo and behold they are actually made for 1/0 cable. I will be contacting the home office of WM and letting them know that there Vendor is in error. The packages were all marked 1/0 and unopened.:yikes:

I am confused? What was the issue?
 
Dec 28, 2010
462
Catalina 380 san pedro
Sorry for the confusion. The cable I am splicing is 1/0 cable or phonetically WON AUGHT....
The cable terminals I purchased from WM were in an unopened package clearly marked 1/0. They are not WON AUGHT connectors they are made for AWG 1 cable which is slightly smaller and these connectors WILL NOT FIT on ONE AUGHT cable. I took the time to travel to Long Beach and purchased the proper fittings at Captains Locker. By the way they were much cheaper there although they are not open on weekends which is a bummer.
 
Feb 6, 1998
11,454
Canadian Sailcraft 36T Casco Bay, ME
So the clam shell/package says 1/0 but the terminal itself was stamped/embossed 1Ga? I think I am still confused?
 
Dec 28, 2010
462
Catalina 380 san pedro
Actually the terminals themselves were stamped 1/0 which means WM's vendor made the mistake.
 
Jan 30, 2012
1,115
Nor'Sea 27 "Kiwanda" Portland/ Anacortes
For the rest of us -- it goes (from smaller to larger)

2, then 1, then 0 (which is 1/0) then 00 (which is 2/0) then 000 (which is 3/0).

Some think cable size 1/0 = 1 (it does not) or possibly the other way round that 1 = 1/0 (that is wrong as well.)

Charles
 
Last edited:
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Oct 29, 2005
2,204
Hunter Marine 326 303 Singapore
Charles thank you for the explanation. I didn't know this sizing numbering and it always confounded me. Now I know better. :D
 
Feb 6, 1998
11,454
Canadian Sailcraft 36T Casco Bay, ME
Typically available marine wire sizes:

16GA SMALL
14GA
12GA
10GA
8GA
6GA
4GA
2GA
1GA
1/0 (0)
2/0 (00)
3/0 (000)
4/0 (0000) LARGE
 
Oct 30, 2011
542
klidescope 30t norfolk
But they keep going the next size

250Mcm
300mcm
350
400
500
600
750
1000mcm. Huge bout size of your arm
 
Feb 6, 1998
11,454
Canadian Sailcraft 36T Casco Bay, ME
But they keep going the next size

250Mcm
300mcm
350
400
500
600
750
1000mcm. Huge bout size of your arm

Yes they do keep going, but good luck finding them in a UL Marine grade wire.
 
Dec 28, 2010
462
Catalina 380 san pedro
I purchased the proper Crimper today at a local Tool Shop...whew...talk about putting out some cash....this is getting expensive....:(
 
Sep 25, 2008
923
Macgregor & Island Packet VENTURE 25 & IP-38 NORTH EAST, MD
+1 on the Genuinedealz made cables. They will have the correct ends, correctly crimped, with even your choice of shrink tubing color! makes it nice to identify which cable is which.
 
Dec 28, 2010
462
Catalina 380 san pedro
Nice idea...thought about it but then I have to remove existing cables...measure...etc. I'm used to making my own cables. I enjoy having the knowledge that the cables are properly done etc.