Questions tagged [240v]

For questions dealing with 240 volt electrical circuits, devices, and equipment. This tag covers the similar voltages as well (i.e. 220, 230, etc), since they generally refer to the same thing. Use with the [electrical] tag.

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90 views

What wire do I need when replacing with a higher gauge for a new cooktop?

I'm getting a new cooktop installed that requires 240V 50A wiring. The old cooktop only needed 40A so I need to replace the old 8/2 wiring with 6 AWG wiring and change out the breaker to a 50A breaker....
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1answer
128 views

Blue cable in 220v air conditioner plug & cord?

I'm looking to replace the plug on a window air conditioner unit that uses a 6-20 240v plug. However, in addition to the cord having two hots and ground, there's a small blue cable that I'm not sure ...
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2answers
1k views

Change from 240V to 120V

I did quite a bit of research including on this forum but wanted to double check if I got things right. On the outside of our home there is a standard electrical box (guessing about 3"x5") to install ...
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2answers
617 views

220v 30amp 4 Wire to 3 Wire Bandsaw

I just got a bandsaw with the 5hp motor that requires a 220v 30amp single phase connection. I have it up and running with a three wire dryer cable to my dryer receptacle. When researching requirements ...
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3answers
142 views

Electrical - 50A to 20A Adapter for heater?

I am currently in the process of remodeling my detached garage and have run into a snag with the electrical. The previous owner ran 6-2 wiring out to the garage into a 50A outlet but then pigtailed a ...
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1answer
1k views

Help: Wiring 220V in garage to NEMA 10-30r because MIG welder and air compressor have 10-30p

I've reviewed many articles on this website as they've been referred by my Google searches. But most have been about dryers. I have an older air compressor (240V, 60Hz, 15A, 5hp) and a MIG welder (...
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3answers
77 views

How to wire a USA 50amp 2 phase double pole breaker supply for a UK 240v high capacity shower pump

I have recently moved to the USA from Scotland. I brought with me a "Waterfall" 3 bar shower pump, operating on UK 240V, 50Hz A/C,rated at 4 A, 850W, IPX2. In our house we have a disused 50amp supply ...
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2answers
102 views

Two 20 amp circuit breakers installed with copper wire bridge

We hired an electrician to Power a steam humidifier and when I opened the electrical panel I was surprised to see two 20 amp circuit breakers next to each other with a copper wire through the on/off ...
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1answer
98 views

Adding New Breaker / Subpanel

I am installing a 240v ductless mini split. My breaker box is full, and I have a seperate ( hot water ) breaker in its own box on its own meter. I see two ways I can approach the situation: 1) Add a ...
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1answer
399 views

What Wire Should be Used for a 40A 240V Circuit?

Given a 240V 40A circuit is there an official wire type that should be used? I assume there is a building code standard for this somewhere, but I don't really know where to look. I'd love if I could ...
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1answer
66 views

Can I share a 220v circuit between an AC compressor and baseboard heat?

I will be adding a 220v baseboard heat as a supplement to an addition. The addition also has a smaller AC compressor with 20amp 240v, the same spec as the heater. I wonder if I should share this ...
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45 views

Connecting 240v 14-50R to multiple heaters in parallel

I have four infrared heaters that each draw 6.67 amps at 240v. Each heater has a red, black and green wire: more info (I have SW-24 single lamp model) I'm in the US and recently had a NEMA 14-50 ...
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2answers
535 views

Plugging compressor into 240v dryer plug (NEMA 10-30R)

I've recently received a compressor that has a NEMA 6-50P plug on it. I would like to plug it into my current dryer receptacle which is a NEMA 10-30R. Voltage and amperage-wise, I think everything ...
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1answer
49 views

Using a 4-wire machine with a 3-wire receptacle?

I've got 3 machines for my shop that are currently wired with a 12-3 4-wire NEMA 14-50 plug. Each machine uses only 15 amps at 240v, so how much power it uses is not a factor here with my question. My ...
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4answers
2k views

amps per leg on 220V?

IF the nomenclature plate on a piece of 220VAC equipment says 10.0 Amps, does that mean that the load is 10 amps per leg, or 10 amps total, therefore 5 per leg?
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2answers
426 views

How should I secure an unused wire in my breaker panel?

I accidentally pulled 6-4 wiring to a machine that only needs 240 and no neutral. What to do with the white wire? I read here that at the machine, I just cap the white wire. When I go to connect the ...
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1answer
102 views

using a U.S. 220v water heater in a foreign country where the line voltage is already 220v

The water heater is set up to use a double pole breaker in the U.S. to create the 220v needed with 2 hot wires, and a ground wire. However, overseas the incoming voltage is already 220v, and doesn't ...
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1answer
68 views

What's wrong with my replacement fan motor?

I have one of those integrated bathroom 3-in-1 ceiling units (light, heat and exhaust fan). Recently the fan spontaneously stopped working. I took the unit down to inspect the fan motor and took it ...
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1answer
90 views

How can I ground an appliance with a CEE 7/7 plug plugged into a step-up transformer with a “universal” female outlet?

I'd like to use a European appliance (5A 208-240V 50/60Hz 900W) with a step-up transformer such as this one. The appliance has a CEE 7/7 Schuko-French hybrid plug. The transformer has a female ...
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0answers
89 views

Wanting to make existing 2-wire 220V outlet a 4-wire one

(Located in the USA) I've inherited a 220V (or 240V?) circuit which is just capped off inside a junction box. It's hooked up to a 30A breaker, and seems fine, except that it's only a 3-wire run--no ...
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3answers
4k views

I need to switch between two 240V 30A loads

I've got a situation where I have a 240V 30A dryer line, and I want to power something else from the same circuit, but NEVER at the same time as the dryer. I'm looking for a switch to use, like a DPDT ...
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0answers
538 views

wiring up new detached garage

K.I.S.S. Keep it simple stupid. Please remember this when responding because I have very little knowledge of home electrical, mechanic by trade. My House has a 200amp service panel House panel runs ...
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1answer
178 views

Electrical outlet fried 3 USB chargers and causes projector to shutdown.What to do?

First off, I'm talking about European Schuko sockets, 220V AC. There is this one outlet with 2 sockets in the corner of the room, and both of them have caused problems. Over the past few months they'...
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1answer
137 views

Adding a 3/4-wire 220v receptacle

I've got two 220V appliances I'm trying to add a receptacle for. I've got a dual-pole 25A breaker, and am completely replacing the existing outlet. My issue is that one appliance has a standard NEMA ...
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2answers
132 views

Power Panel Grounding and Neutral Bonding / Dryer hookup in an older home [1975]

In my home I have the old 3 wire Dryer and Range connections. Looking at my CB service panel; my neutrals (white) and my ground wires (bare copper) connect to the same bus bar. Main service panel - ...
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2answers
130 views

Can I connect an Asian 240v water heater to a US 240v circuit?

How can i wire directly an Asian single 240 volt line with neutral instant hot water heater to my 240 twin line tap in the United States? Can i tie the two legs on the breaker into a single wire? I ...
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2answers
57 views

One 60A 240v Breaker connected to 4 Outlets using PDB

I plan to power four 240v outlets from a single dual pole 100A breaker using a power distribution block. I'll have 4 AWG copper wires coming from each terminal feeding into a power distribution block, ...
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1answer
112 views

Parallel (2) 20 amp 220 12 ga wires into one 30 amp 220 Breaker OK?

I am attempting to replace 2 ovens that currently each have their own dedicated 20 amp 220v circuits. (12 ga wire) My new modern GE double oven requires a single 30 amp, 220 circuit. (10 ga wire) ...
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3answers
4k views

Damaged Wire Insulation

I opened an electrical box today to a bit of a surprise - a little bit of exposed conductor on one of the wires! As far as I can tell, there is no damage to the conductor (12 gauge). Note that this ...
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37 views

Dryer works. Just not on my 240v circuit

Been racking my Brain. had a dryer go out on me. t/s the dryer i.e thermal fuse. switches etc. even put D.M.M. on motor leads and spun motor and it produced voltage. At a loss I purchased a used dryer ...
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2answers
19k views

Splitting a 220 V line into two 110 V lines?

In my garage I have wiring for a 220 V outlet. It is a four-wire setup (two hots, one neutral and one ground). It is set up on a 20 ampere, double breaker in the circuit breaker box. I want to ...
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2answers
102 views

Upgrading baseboard thermostat -wiring help

Going from old analog thermostats to programmable digital. They're all 240v but appear to currently be wired as single pole and new stats are double. Photos attached of line in, and two out for load- ...
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2answers
1k views

Will 220v 50 Hz BLDC Washing Machine work with 240v 60 Hz?

Looking to take advantage of price difference to import a washing machine from China - rated 220 volts 50 hertz to Kenya where we use 240 volts 60 hertz. Our supply also tends to be unstable with ...
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3answers
3k views

I have a car EV charger with a NEMA 6-20 plug and a different 220v receptacle — adapter?

I bought a 220V car EV charger with what I understand is a NEMA 6-20 plug: But the socket is some other 220V that I can't find the specifications for: Is there an adapter I can get to use this plug ...
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2answers
476 views

240v Cove Heater Wiring

So I'm planning on wiring in three 240v cove heaters in my master bedroom and bathroom (on two separate thermostats). I've read through the manufacturer installation instructions, as well as ...
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4answers
6k views

Discovered 10/2 wired 3-prong receptacle for dryer. Is it ok to leave as is?

We removed a drop ceiling in our 2nd bathroom and discovered that some previous homeowner/DIYer had run wiring for a new dryer through the drywall ceiling into the wall, and hid it with the drop ...
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1answer
692 views

Can I split a 120v outlet off a 240v air conditioner circuit?

I have a 30amp 240v line running to my central A/C unit. And I want to install an 20 amp 120v outlet next to it to run an air compressor unit. Is this possible and how is done?
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3answers
154 views

Can my house's electricity supply be upgraded?

I'm trying to start a business in my house: Cryptomining. Essentially, I will be buying many big power-hungry computers which will print money out of thin air. It's a very lucrative business. Right ...
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2answers
967 views

Plans for running new 8/3 NM-B service for oven

I've been doing a lot of reading and planning for a run of 8/3 NM-B that is required for a new oven/micro combo in our kitchen remodel. We currently have 10/2. While I have quite a bit of basic home ...
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1answer
116 views

Switch a condenser dryer from drawer to pipe

How does one switch a condenser (ventless) dryer such as the Electrolux edc78550w from collecting the water in the drawer to pushing it through the back pipe?
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0answers
86 views

Surge protector for appliances - per appliance? Non-standard?

I was told by a technician that I need a separate surge protector for each appliance (washing machine, dryer, etc. They have electronic boards in them). I was also told that I need a special one for ...
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1answer
513 views

Dryer won't start. Uses a 4 prong 240v outlet where hot/ground is 120v but hot/neutral is 50v. What's wrong?

I recently had a dryer hooked up to this outlet and it ran for 2 years without problem. I recently got a new (to me) Kenmore 400-series dryer that was serviced a month ago and was in perfect condition,...
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2answers
5k views

two dryers on the same circuit [duplicate]

I would like to have two dryers in my laundry room. Can I run both off of the same circuit? Can the outlets be run in series? What upgrades do I need to make for this to work. I have room for another ...
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1answer
1k views

Change my 220v 50 amp breaker to 70 amp on existing wiring to pool panel

Currently I have a 50 amp breaker (220v) running to my pool panel. My pool panel has two 110v outlets and a 20 amp (220v) to run my pool pump. I want to add an electric pool heater which will be a 40-...
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3answers
2k views

Powering a 240V 15A air compressor with a 6-20 plug

I have an air compressor with a 240V 15A power requirement and a 6-20 plug (looks like normal US plug but with one of the flat ends turned at a 90 degree angle). Instruction manual can be found [here][...
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2answers
968 views

How do I connect a 240v compressor with only black and white wires?

I got a new air compressor that says 240 volt only but it only has a black and white wire please help.
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1answer
51 views

What is causing the remote not to work properly when the light is connected up to the ceiling fan?

I installed a 220v DC ceiling fan. Prior to installing the LED light, I tested to ensure the fan motor worked with the remote control and it did at all speeds. I hooked up the LED light as specified ...
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2answers
532 views

Can you 2 gang 240v receptacles

I have 220 running to my irrigation pump drawing from my pond. I want to add aeration. Can I gang 220?
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2answers
2k views

Trying to add a 240V circuit to the breaker box — is there space?

I'm trying to add a 240V circuit to my breaker box. It looks as though there are enough "slots" on my breaker (2), but the metal doesn't extend all the way down. Do I have the space to do this? EDIT: ...
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0answers
44 views

Replacing switch for pool spa

The switch that controls our pool spa is currently located on the side of the house, behind our AC unit. It's a very awkward, hard to reach location, so I'm currently looking into replacing it with a ...