What wire do I need for a 15 amp 240 receptacle?

[Treetroit City]

So I have this receptacle and I have some 14/3. Do I need 14/2? Can I use 14/3?

 

[PoopyTeaBags]

14g 3 wire ground goes to ground. hot to hot and nuetral becomes second hot.

 

[Treetroit City]

Kinda what I was thinking. I'm now wondering if I could use 4 wire and do b/hot r/hot g/ground and not use the neutral.

Is that a bad idea? Hate to buy new wire when I got some sitting around.

 

[-Capfan-]

Couldn't the white act as a Ground as-well ? By no means am i an electrician, i am just asking

 

[HidingInTheHaze]

.

 

[Treetroit City]

Never gonna upgrade this circuit. It's a dedicated circuit for my mini split. Already have the breaker and the receptacle so I'm not going to do 20 amp.

Can anyone tell me if I can use 14/3 romex successfully?

 

[HidingInTheHaze]

.

 

[Weezard]

H in the H knows what he's talking about.

Aloha,
Weeze

 

[Treetroit City]

Yes, 14awg is fine then if thats what fits your full load amps listed on your
name plate.

Double check to see if you need 240 with a neutral, in which case you will need 14/3 romex, black, red, white and a bare ground.

If no neutral needed then use 14/2, black, white bare ground.

Let me ask this, Are there different kinds of 15 amp 240 receptacles?

At the supply house I said that's what I needed and they didn't question me further so I assume there is just the one kind.

Reason I ask is cause looking at the receptacle I see where the two hots would go and the ground but see nowhere to connect a neutral.

 

[HidingInTheHaze]

...

 

[Weezard]

There are 3, or 4 different kine.



Here's the one for neutral.

Aloha,
Weeze

 

[Treetroit City]

Guess I didn't think it would be this confusing for me lol.

Well here is the plug for the AC.

So here is the receptacle I got.

So is it possible I got the wrong receptacle?

Don't know if it matters but here is the quick connect electric connection.

 

[HidingInTheHaze]

.

 

[Treetroit City]

Okay, now we're getting somewhere. Thank you for helping me out HidingInTheHaze.

Now for a possibly dumb question. Any reason to not use 14/3 and just clip the neutral where I take the sheathing off? Forgive me for such a question but it seems like that would be the same as 14/2 with a tag along wire that isn't connected to anything.

Thanks again.

 

[HidingInTheHaze]

.

 

[draztik]

14/3 allows you to run a neutral wire. Having that neutral would allow you to use one of the two out of phase 120V legs to have 120V feed to power anything that required 120V such as a fan. So you would have 240V and 120V feed coming from one 14/3 wire for example.

 

[HidingInTheHaze]

.

 

[Treetroit City]

Cool, yeah I already bought the wire and at a supply house so it's not something I could return. I know we're only talking about 20 bucks worth of wire but if I can use it and not have to go back and spend more money...

Thanks again for walking me through that. This is one of many reasons why I love ICmag!

 

[Treetroit City]

14/3 allows you to run a neutral wire. Having that neutral would allow you to use one of the two out of phase 120V legs to have 120V feed to power anything that required 120V such as a fan. So you would have 240V and 120V feed coming from one 14/3 wire for example.

This will definitely be a dedicated circuit. I've already run 20 amp circuits to both veg room and flower room for accessories.

Lights(4K) are on their own 30 amp 240.

If anyone is interested in what I'm working on here it is. A brand new pole barn build out.

https://www.icmag.com/ic/showthread.php?t=254875

 

[rives]

HinH, good job. The only place that I would disagree is the wye/delta designation. I've never seen wye or delta refer to anything other than 3-phase, and you are correct about wye utilizing a neutral and delta not.

In my experience, 240v single phase is either 240v (3-wire) or 120/240v (4-wire).