220v to 115V Converter Adaptor ?

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220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 03:05

Does anyone know if there is some sort of adapter that i can use to Run my 115V AC in this plug which is 220V - i never seen a outlet with this setup -

I got a new AC but its 115V - and its now on the same line that i use to charge my chairs - i cant use the AC and Charge at the same time - breaker trips all the time now - i have a dedicated 220V outlet - which is what was suppose to be used for the AC only - but the new AC they gave me now is 115V and couldnt use the dedicated outlet -

i am searching for some sort of Adapter so i can use this 115V AC on this line -

here is a picture of the outlet -

anyone know of any ?

thanks
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 23 Aug 2019, 04:31

The 220v outlet uses both phases of the incoming 110v supply (hence the doubled voltage). While the standard 110v outlet is limited to <1500W, the 220v outlet is intended for higher power equipment such as cookers, dryers, AC, etc. up to ~3000W.

A 1500W AC is pretty small, the one I bought for my PAs bedroom is 2800W and that's about the smallest you can buy here.

What model of AC is it, link? It may be they have a 220v model. If they installed 220v for the AC surely they should supply the right AC? Left & right hands again. :roll:

If all else fails the device you need is a step-down transformer but beware, most of the cheap ones on Amazon etc are not suitable. Ignore anything travel related or transformerless or step-up/step-down. You need a 5000W step-down transformer with a US220v input cord - if it doesn't say that, then pass - a lot of them say "not suitable for US 220v input". It'll be a few 100 $ for a good safe one.
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 04:45

the unit was supplied by the landlords - i didnt have any input on it - i needed a new unit and they got a few - - it took a year to even get a new AC - i was just about going to get it myself but i got a few - its only 8K BTU - but they are making 12K BTU and even 14K BTU with a 115V plug - i really dont care if its 120V or 220V unit - as long as it works - i do feel its a bit small for the space -

but for now its brand new and works - only issue is the dedicated line near the AC is the picture i posted - i never seen that kind of outlet before - and nothing i found matches it - why so many different outlets is just confusing - i searched and have not found anything close to this outlet i have -


do you know what outlet that is - the layout of the pins - both pins are sideways - usually i see one is straight and the other sideways or angled - - but never seen both sideways as in the picture -
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 04:55

if its going to cost that much - i will just bring it up to the landlord and let them figure it out - best way is call the electrician and just change the outlet - if its $50 dollars or less - i would just get it and not bother with them - but a few hundred - they should have known this before and done it the right way - if they dont want to do it -
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 23 Aug 2019, 06:02

It's called a NEMA 6-15 socket. The normal sockets are NEMA 5-15.

They are very commonly found in US kitchens & utility/laundry rooms.

https://wikipedia.org/wiki/NEMA_connector
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Re: 220v to 115V Converter Adaptor ?

Postby LROBBINS » 23 Aug 2019, 09:38

Irving's description is exact AND you can't just change the socket - the wiring is not appropriate for a 115V device. An electrician might decide to use 2 of the 3 wires in that box to get 115V, but you would then not have any ground wire to protect you in case of a short to the AC's case. If there is also a separate ground wire, OK, but if not it would be a quite unsafe thing to do. They either need to run a separate 115V line to a proper 115V outlet, or get you a 220 AC.
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Re: 220v to 115V Converter Adaptor ?

Postby Burgerman » 23 Aug 2019, 10:50

Is it true that there are actually 4 wires. Phase 1, phase 2, and neutral and earth in the wall behind a 110 volt outlet?

So you should be able to retrofit al of them with 240V or 220V outlets using 2 phases and earth? Or 2 phases and no earth?

I think I saw a vid someplace showing that. So you get with the modern world, have 3kw and 220/240V sockets and use things like shirleys power supply at 50A, and 3kw fan heaters or air conditioners, etc.

Everything in fact.
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Re: 220v to 115V Converter Adaptor ?

Postby Burgerman » 23 Aug 2019, 10:51

Is it true that there are actually 4 wires. Phase 1, phase 2, and neutral and earth in the wall behind a 110 volt outlet?

So you should be able to retrofit al of them with 240V or 220V outlets using 2 phases and earth? Or 2 phases and no earth?

I think I saw a vid someplace showing that. So you get with the modern world, have 3kw and 220/240V sockets and use things like shirleys power supply at 50A, and 3kw fan heaters or air conditioners, etc. My pressure washer is 3.2kw for e.g. Anything less is like someone peeing.
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Re: 220v to 115V Converter Adaptor ?

Postby LROBBINS » 23 Aug 2019, 12:08

John,

In general no. A U.S. 115 cable is 3 wire, 115 "hot" and "neutral" plus a ground wire. AWG 12 for 20 Amp circuits, AWG 14 for 15 Amp circuits. One tries to run half the circuits off one phase and the other half off the other one, but the system is decidedly unbalanced so there's usually a lot of 60Hz noise about.

Except when a b------d like the one in the U.S. who wired an addition on our last house there ran AWG 12 from the panel to the first box and AWG 14 from there on - he also just spliced wires by twisting them together - a fire waiting to happen which I discovered when the insulation above a ceiling lamp's box started to smolder. I don't know if it was the previous homeowner who did that, or a "professional" electrician, but having seen a 50 foot run of interior Romex used by a "professional" (and approved by the inspectors) between a house and detached garage when we lived in Texas, either is possible. Inspection in Austin was much more thorough when I, an amateur, re-wired our house. My entry mast was 1" too high to be without guy wires, so I had to get up on the roof with a giant rented pipe cutter and remove that 1". Also had inspectors in Michigan approve a central hot-air furnace installation where the power wires were run straight through the burner box (the inspector just said: "Oh this job was done by so-and-so. They know what they're doing so no need to waste my time." Yeah, they knew so well what they were doing that the first thing they did was discard the installation manual.) Obviously, this got corrected ASAP.

Not really different here either. I just had to replace the key switch contact block for our driveway gate and discovered that much of the control panel wiring was not done per the manufacturer's instructions (nor to code).
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Re: 220v to 115V Converter Adaptor ?

Postby Burgerman » 23 Aug 2019, 12:25

Theres many rules and regulations here. If for e.g a proper electrition spots or tests anything that is not as per code, then he can shut down the whole thing. Great for safety but usually a good reason to bump up the bill.

Theres many things I did over the rears that are non compliant here. I hope nobody notices... I know what is what. And I know where cables run under my lawn that are not armoured and wront type. Some are solar DC variable voltage up to 400 etc. Some are AC 240V, some are legally undersized, (used what I had etc. ) But I know all this and so behave accordingly. When I sell or die, then there may be a few issues stored up for the unwitting... But theres only me living here!
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 23 Aug 2019, 12:32

Burgerman wrote:Is it true that there are actually 4 wires. Phase 1, phase 2, and neutral and earth in the wall behind a 110 volt outlet?

As Lenny said "it all depends". From what I've read, most contractors run a 3-wire 220v install to save cabling costs. So they'll run a black 'hot' from the hot side of one phase, a white 'neutral' from the hot side of the other phase and a ground.

To our (well mine anyway) it's all seems a bit Heath Robinson and highly dangerous...

Then again, in my youth, I helped renovate a French farmhouse in Normandy. The wiring installation by a 'licenced' electrician was 'interesting' in the Chinese sense :D :D
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Re: 220v to 115V Converter Adaptor ?

Postby Burgerman » 23 Aug 2019, 12:51

As long as you understand the possible issues and know what you are doing theres many ways to skin a cat. (why a cat? :problem: ). The issues come from others later on that presume that its done "correctly". Whatever correctly means.

What worries me more is that in parts of this house the olde worlde rubber wiring exists.Tap with something and the rubber falls off. And theres no earths in the light switches in some rooms. My "electrician" failed to understand that this means a metal faced chromed light switch that I had wanted fitting everywhere cound end up hot when the metal back box contacted the wire when the rubber fell off...

I measued them with my fluke set to low impedance (no stray ghost voltages shown from inductive or capacitice coupling) against the radiator pipework. The chrome switch in my hallway was a solid 244V AC. You couldnt feel it easily, because the chair is on a dry carpet, rubber tyres. You could just feel a slight "buzz" with fingertips... Needless to say I had him replace all of them with white plastic ones.

And I tested the screw heads against the radiators...
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 15:29

looks like i am going to be stuck with this AC the way it is then - or i have to buy my own and just do it - i have to bring it up to management and see what comes out of it - what i feel happen is the idiot handy man in our building didnt specify what AC was needed - the bedrooms are this size and 115V - but my main living room should be larger in power at least 12K BTU -

i will have to start a work order - by the time this gets worked out - if it does - another year - good thing is its winter soon so wont need it much - and it is new and working - so not urgent -

it depends how many PSU i have running at once with my charging system - i usually have two going at once - and thats what trips it - so i have to keep the AC off while charging - at least till my ADD ON packs is done - then i can turn it on - still shouldnt be this way

if i can find a converter adapter for that outlet to just make it work using that 220V outlet instead - i would just do that - i havnt been able to find anything that looks like that outlet - will search again
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Re: 220v to 115V Converter Adaptor ?

Postby sacharlie » 23 Aug 2019, 16:10

Those adapters are common in the RV industry mostly but also home appliance stores.Google RV and "50 amp male" to "30 amp female" and adapter, sometimes Walmart has them in stock.
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 17:31

https://www.google.com/search?q=RV+and+ ... 0&bih=1286

this is what i get when i googled that - its not the same one i have on my wall - it is the Nema 6-15

https://www.homedepot.com/p/Leviton-30- ... /202077682

i need this end to plug in the wall and the other end to fit the normal plug - the pictures i find dont show me both ends -

If i do find an adapter - would that be all i need - just adapter and plug it in - i mean the 220V outlet wont give 220V unless the AC is asking for it ? is that correct ? it will supply what the demand is asking - should be fine ?
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Re: 220v to 115V Converter Adaptor ?

Postby sacharlie » 23 Aug 2019, 18:06

OK just looked at your pic of your wall outlet. Too dark to see but looks like it only accepts 3 male prongs not 4, right? If so forget RV plugs, those are all 4 prong 220v and 3 prong 110v. Look at appliance adapters. Appliance power cords are goofy! Just bought a new washer that didn'T even come with a power cord, the instructions stated to buy the proper cord to fit your power outlet or use the cord from old washer. :roll:
Looks like you need a nema 6-50 male to nema 6-30 female adapter.

You might buy a nema 6-50 power cord and tape one of the hot leds to replace the power cord on the ac unit.
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 18:12

the one i need is the Nema 6-15 one end and 5-15 3 prong on the other end - and it seems very hard to find if at all - i emailed a place to ask which has alot of them but none with the 5-15 end also

its most likely not a certified combination i am getting that feeling - i am sure it Can be made - but if its safe is another question
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 23 Aug 2019, 18:46

@expresso, don't get too despondent, they do exist. McMaster do the right sort, just not big enough. https://www.mcmaster.com/70245k85

But whoever makes these probably makes bigger ones.
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 19:03

Irving wrote:@expresso, don't get too despondent, they do exist. McMaster do the right sort, just not big enough. https://www.mcmaster.com/70245k85

But whoever makes these probably makes bigger ones.



thanks - i get the feeling that this is not going to work as i planned - if i have to spend hundreds of dollars - i might as well just buy a new AC for that plug - i figure if its $50 dollars etc, - i just get it and not bother with the building idiots - the less i have to deal with people - the better -

if i cant find one etc, i will bring it up to the management also and let it play out to see what the outcome will be - being its going to be winter soon - wont need it -

another way is just use one charger PSU at a time - means takes longer to charge my chair with the ADD On packs - will have to charge one at a time - or have the AC OFF during the charging till at least the ADD ON is full - a few hours -

these are the work arounds but i shouldnt have to work around anything - they should have gotten the correct AC for that outlet which is a dedicated outlet for the AC -

last resort would be wait till Winter time - and buy my own - again i shouldnt have to -


BUT - if i did find just a cable adapter - would it be safe to use - ? or do i have to have a step down voltage item - ?

my thinking is if the AC is asking for 115V - the outlet will only supply whats asked ? or would it burn it up - blow the AC unit ?
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 23 Aug 2019, 19:12

expresso wrote:my thinking is if the AC is asking for 115V - the outlet will only supply whats asked ? or would it burn it up - blow the AC unit ?


Don't even think it! Plugging a 110v device into a 220v supply will at best blow a fuse/trip a breaker. Worst case, a serious fire.

And a cable adaptor isn't what you need. It must be a proper transformer, nothing else will do or be safe.
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 19:17

Ok - i guess i was not thinking correctly -

so what i need is a 220V Step down convertor to 115V - and if i did find one - then the cost would be the other reason to think about if its worth it -

if i search that - i dont find one with the 6-15 male end plug - will try it again


https://www.amazon.com/SEYAS-Transforme ... B06VVXN2SR

if something like this works - thats ok - but yet i dont see what the plug is - and if this is enough 1000W ?
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 23 Aug 2019, 19:21

Don't search for 220 to 115 cos the actual conversion is 220 to 110. Search on something like "220v step down transformer"
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Re: 220v to 115V Converter Adaptor ?

Postby Burgerman » 23 Aug 2019, 19:26

Also call the air con manufacturer. Some items can be swapped over to 220/240V or 110/115 as many things get sold worldwide. To make something that is 110 only limits their market to the US alone. there may be an easy way to convert both ways.
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 21:08

Irving wrote:Don't search for 220 to 115 cos the actual conversion is 220 to 110. Search on something like "220v step down transformer"



thanks will try that - i will bring it up to management here to let them know -
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 23 Aug 2019, 21:11

Burgerman wrote:Also call the air con manufacturer. Some items can be swapped over to 220/240V or 110/115 as many things get sold worldwide. To make something that is 110 only limits their market to the US alone. there may be an easy way to convert both ways.



i can try that - i dont think it will work out that way - but nothing to loose to ask them - they make items for certain markets with many items - thats why the plug is 5-15 3 prong - but like you said - its possible with a switch flip on the unit - and change of plug - may work out - if its built that way -

i am sure its not - something with dual use most likely costs more also - so i am sure they always go the cheapest route when replacing items. i am curious to know also and will call them to ask
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Re: 220v to 115V Converter Adaptor ?

Postby farmer » 24 Aug 2019, 02:03

did you get a psu thats 110v/220v if so change it over to 220v then use it to charge with and run air on 110v
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Re: 220v to 115V Converter Adaptor ?

Postby expresso » 24 Aug 2019, 02:19

nah - nothing to do - called the company - i knew it wasnt able to do it - its 115V - thats it

i leave it alone - let them know and see if they can get me another one 220V or change outlet to 115V -

they most likely wont do either - too much to change outlet - and then change fuse or breaker also - means calling in an expert - costs money

new one costs money also - but would be the easiest route -

so thats that
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 24 Aug 2019, 07:40

Amatek SDT208-120/16 is what you need (you'd need to change the output cable socket, or make a NEMA 6-20 to NEMA 5-15 adaptor cable). About $800.
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Re: 220v to 115V Converter Adaptor ?

Postby foghornleghorn » 24 Aug 2019, 10:26

Would an alternative be to plug the AC into a normal socket, and charge the chairs from the 220v socket with a different power supply for the PL8?
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Re: 220v to 115V Converter Adaptor ?

Postby Irving » 24 Aug 2019, 10:32

foghornleghorn wrote:Would an alternative be to plug the AC into a normal socket, and charge the chairs from the 220v socket with a different power supply for the PL8?

If the existing PSU is a 100-240v then that would be a good move, just needs an adaptor plug. But need to be careful not to plug anything else into it by accident! If not, a new PSU might be the most cost effective solution.

As a bonus you'd potentially get more power out of the PSU
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