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Old 06-11-2014, 09:45 AM   #1
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Can I connect different gauges of wires ?


I have low voltage lights. I am wanting to connect the wiring from the lights((between 18-22 AWG wire) to the power cable(14 or 16 gauge wire) because the connector that came with the set has worn out. The existing cable connector is the kind that you lay the gauge wire in a channel and screw a cap down on it and it pushes the wire down on small prongs which pierce down on the wire to allow connection.

Can I connect the two types of wire to by pass the existing connector? If so, what type of connector can I use for two different sizes of wire? Since the wire will be underground does the connector need to be waterproof?

Or if anyone has another idea of how to power up this light, please let me know. Thanks!

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Old 06-11-2014, 10:32 AM   #2
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Can I connect different gauges of wires ?


Crimp on butt connectors will accommodate a small range of sizes. If they both fall within the range then that is what I would use. Followed up with two layers of heat shrink tubing.

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Old 06-11-2014, 12:20 PM   #3
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Can I connect different gauges of wires ?


you can use regular wire nuts

you can (if you want) get some duct seal from home depot or lowes and put it around the nut before taping.



No matter what you do, it will eventually rot.
All exterior lighting in contact with earth eventually rots.
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Old 06-11-2014, 12:39 PM   #4
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Can I connect different gauges of wires ?


I use these:



http://www.homedepot.com/p/DryConn-S...2114/202889871
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Old 06-11-2014, 01:36 PM   #5
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Can I connect different gauges of wires ?


The crimp on butt connectors and heat shrink sounds best to me. However, if you wanted to use the wire nuts I'd recommend getting them somewhat watertight if they're underground. Water and soil has metals in it and those different types of metals will cause corrosion over time. I'd use glue from a hot glue gun inside those wire nuts, then tape 'em up neatly to help prevent voltage leaks/corrosion.
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Old 06-11-2014, 03:23 PM   #6
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Can I connect different gauges of wires ?


Quote:
Originally Posted by rjniles View Post
expensive bugger.

has some dielectric grease in it.

Wonder if it would be worth buying a tube of that, squirting it int a regular wirenut and walking away.

2 things, personally I bought a couple for a job I was doing (15 or more yrs ago).
Personally, for the price, I couldn't bring myself to use and bury it.

I used the duct seal method. Knock on wood, all's been fine.



I've also dug some of those up, unless you do something more than just splice and bury it, they get all buggered too.
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Old 06-11-2014, 03:48 PM   #7
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Can I connect different gauges of wires ?


Quote:
Originally Posted by ritelec View Post

expensive bugger.

has some dielectric grease in it.

Wonder if it would be worth buying a tube of that, squirting it int a regular wirenut and walking away.

2 things, personally I bought a couple for a job I was doing (15 or more yrs ago).
Personally, for the price, I couldn't bring myself to use and bury it.

I used the duct seal method. Knock on wood, all's been fine.



I've also dug some of those up, unless you do something more than just splice and bury it, they get all buggered too.
$7.97 for 20 (40 cents each) is expensive? Compared to regular wire nuts, I guess they are.

You can buy other sizes and small packages:

http://www.homedepot.com/s/Waterproo...nectors?NCNI-5
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Old 06-11-2014, 09:38 PM   #8
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Can I connect different gauges of wires ?


Sorry, my bust. saw each and not the pack of 20.

And the ones I bought (which I think are still in my truck )where/are for 6's.

Like $8 for 2 or 3.

(curious, Gonna look.)

Saw #8 wirenuts in a search, not bad $ either.
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Old 06-11-2014, 09:47 PM   #9
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Can I connect different gauges of wires ?


What size wire nuts do you think that I should get that I could connect the 14 or 16 gauge to the 18-22 AWG wire?
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Old 06-11-2014, 09:54 PM   #10
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Can I connect different gauges of wires ?


Quote:
Originally Posted by ritelec View Post

(curious, Gonna look.)
No go.

Could be wrong. Was a long time ago.



"What size wire nuts do you think that I should get that I could connect the 14 or 16 gauge to the 18-22 AWG wire?"

The "approved" range should be on the box or packaging.
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Old 06-11-2014, 10:01 PM   #11
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Can I connect different gauges of wires ?


so look for the range that covers 14-22?
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Old 06-11-2014, 10:01 PM   #12
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Can I connect different gauges of wires ?


http://multimedia.3m.com/mws/mediawe...0Connector.pdf

orange/blue
but they don't have the jizz


The ones that rjniles showed have the jizz and should be the size.
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Old 06-12-2014, 07:15 AM   #13
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Can I connect different gauges of wires ?


I only use ace connectors when dealing with low voltage land scape lighting....


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Old 06-12-2014, 08:22 AM   #14
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Can I connect different gauges of wires ?


I am surprised the light work at all with all the voltage drop on cables that small.

Quote:
I'd use glue from a hot glue gun inside those wire nuts, then tape 'em up neatly to help prevent voltage leaks/corrosion.
Not an approved method as the connectors used underground need to be listed for the environment used in. The correct ones were shown by RJ. Also the wirenut should not need taping if properly installed.
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Old 06-12-2014, 02:33 PM   #15
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Can I connect different gauges of wires ?


Quote:
Originally Posted by stickboy1375 View Post
I only use ace connectors when dealing with low voltage land scaClint the end?pe lighting....


I am not familiar with these connectors. Are they just like butt connectors which you just crimp the ends?

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