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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42 views

Add 240v Outlet to Apartment Subpanel

I am looking to install a washer/dryer system in my apartment and have received mixed feedback about whether a 240v outlet can be ran through my existing subpanel to power the dryer. Is there any way ...
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3answers
94 views

Wiring for kitchen remodel - appliances, electric oven/microwave combo, fridge, 2 dishwashers

I am working on a plan for a kitchen remodel. The existing range is natural gas powered so it doesn't have a dedicated circuit (It's just plugged into a 15 or 20amp outlet). Other existing wiring ...
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1answer
86 views

Running a 50amp 240V line 300 feet to a shed

I'm looking to run a 50 amp 240v line to a shed 300 feet from my house. I have been looking around and reading a lot. Based on this website for voltage drop I need 4awg, to have a less than 3% drop ...
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3answers
1k views

What purpose does a 3+1 outlet/circuit provide when the neutral bus is grounded?

I'm trying to wrap my head around what the benefit is of having to use a 4-prong outlet for newer appliances when it appears the neutral and ground both end up in the same spot. In a dual pole ...
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1answer
35 views

Flipping switch (by itself) trips breaker

I have a 30A 240V circuit breaker I have added to the panel to run a saw. From the breaker, it goes to a switch on the wall, which is high enough that the kids cannot reach. Using a multimeter, I have ...
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1answer
161 views

Wiring for shop: 240V with light switch on same circuit?

See below for (attempt at) solution I'm wiring up a shop I'm putting together and came up with a plan with my electrician but I'm a bit confused on how to execute it. Namely, I'm trying to put a 240V ...
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1answer
89 views

Sharing a 240v 30A circuit using a dial switch

I have a situation where the previous homeowner installed a sauna using the dryer plug. You have to unplug one to plug in the other, a setup that is not only ugly with the sauna plug hanging in the ...
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2answers
44 views

Can a 120v pool timer be used on a two-wire 240v circuit?

I am replacing an Intermatic mechanical T104 single circuit timer with a new Intermatic P1353ME unit that can control 3 individual equipment items in addition to the timer clock. Each of the three ...
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2answers
125 views

Dryer 240 to 120 question

I have a 240 volt dryer currently, and I want to change it out for a gas dryer that will utilize 120 volt. Since the circuit is 240 volt 30 amp, I'd like to use the existing 6-8 gauge wire and ...
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2answers
36 views

Adding an EV Charging Station to an AC Circuit

We just had a air conditioner compressor installed last week. The contractor installed a new 240V 30Amp circuit to the compressor. We are also wanting to install a new EV Charging Station (which is ...
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36 views

Sub panel 3 wire and 220Volts

My mom just bought an old house (1917). The Main Breaker has 3 wires two hot from a 30amp 220 breaker and one ground going from the main into a sub-panel, there is no room to feed a 4th neutral wire. ...
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2answers
67 views

How can I pull single phase 120V from a 3 wire two phase 240V drop?

I want to run a couple of 110 volt plugs from a box that has 240 volts. I understand that I can't just use one of the two hots and wire both the neutral and ground to the 240V neutral. My question is,...
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52 views

Change a NEMA 6-15 plug to fit an NEMA 14-50 receptacle

I have a 240 volt dust collector with an NEMA 6-15 plug. I want to plug it into an NEMA 14-50 receptacle. The 6-15 has three leads, while the 14-50 has a fourth (neutral). Can I change the plug and ...
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2answers
79 views

Different gauge wire for a 40 amp 240v

I am moving my range. I need an extra 4 feet. It is very difficult to run new wire. It is 8 gauge aluminum wire (says on sleeve 2-8). Can I connect 6 gauge aluminum to the 8 gauge aluminum in a ...
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1answer
105 views

Wiring to Water Heater not getting 240v

The wiring to my Water Heater is not getting 240v, and the Water Heater won't work. I've tested the wires at the Water Heater (touching black to Black, and red to red on my electric meter) and I get ...
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1answer
307 views

Very unsafe-looking receptacle

While I was searching for duplex receptacles where one was NEMA 5 (120V) and the other was NEMA 6 (240V), I found a few normal ones that were what I was looking for (Leviton 5031, 5842, 5844, Hubbell ...
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5answers
4k views

240 Volts - No Neutral Required - How does Power Return to Earth?

I think this question is appropriate here in order to help DIYers (me) to understand why a neutral isn't needed on a 240 volt outlet. I understand that two 120 volt power sources that are 180 degrees ...
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1answer
75 views

Plugin 220 adapter OK for higher amperage appliances?

I have used 220 volts from European outlets before via an adapter tool (it probably cost me 20 dollars and I probably have it around the house somewhere). But that was only for limited uses like ...
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2answers
124 views

Does a 240v subpanel need a neutral?

Was curious as I've seen plenty of pages indicating that a 240v circuits don't require neutral... in my head that means a branch circuit but I don't know if that is accurate. My specific case is that ...
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4answers
1k views

I want to install generic capability for future car charging. What 240v outlet on the outside of the house is acceptable?

I am wiring an old house with new wires and want to have an outlet outside for charging a potential electric car. There is no carport or roof overhang, so weather resistance is important. The wall is ...
4
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1answer
120 views

Are my plans for adding a 240 volt circuit reasonable?

I was hoping I could run this by someone. I've done other basic homeowner electric work like adding 120 breakers and outlets. From reading online, adding a single 240 volt circuit next to my breaker ...
2
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2answers
82 views

240v 3 prong - no voltage with neutral

My 3 prong 240v outlet shows 240v when measuring across red and black wires. However, when testing either hot to the third wire I get 0 volts. My understanding is it should be 120v. What does this ...
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0answers
254 views

Water Heater not getting 240v?

My water heater stopped working a few days ago and I've been trouble shooting it ever since. I found water in the connection receptacle. the leak from the the Air Conditioning unit above it has been ...
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3answers
2k views

Can I extend a 220 V line?

I have a 220 V line in my kitchen for an oven. We are remodeling the kitchen and moving the oven and, thus, need to move the 220 V outlet. Can I extend the line by joining cables in a junction box ...
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2answers
212 views

How can I control a 240V heater from a pushbutton timer switch?

I am installing a new in-wall bathroom heater (240V - 6.7A). I want to put the heater on a timer rather than a thermostat. This will keep people from cranking the thermostat WAY up and leaving it that ...
2
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1answer
114 views

240V wiring and a thermostat

Newbie here. I do a bit of home electrical work at the most basic level. (Replacing outlets and switches. Running a new line off an existing outlet. Nothing that would even elevate me to an amateur ...
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2answers
183 views

Does it violate US wiring code to have non-standard outlets?

Note: this is entirely theoretical. I have no (current) plans to actually do this. Would I violate any state/national building/electrical codes if I installed BS 1363 (UK plug/socket) sockets on a ...
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2answers
185 views

Is it possible to use the 240V wiring for a dryer to also run a compressor?

We have a laundry room adjacent to the garage. The dryer uses 240V, I'm not sure what breaker (amperage wise) it uses, but I'm going to assume 50A (washer and dryer are near each other, they're ...
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1answer
87 views

Light and GFCI off 240v well circuit transformer

Due to costs of pulling I decided to try a used transformer as of infrequent usage of the GFCI and more of lighting. I opened the mobile home's 200 amp breaker box at the pole. It has a double breaker ...
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3answers
52 views

USA Mains black to device black & Mains red to device white

First of all let me get this out of the way: Some things are not designed to work with the higher voltage and if that's the case then obviously you wouldn't attempt it with that specific device. ...
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1answer
87 views

Can a 208-230/460 blower motor be wired for 220 plug

This is my motor I have this blower fan squirrel cage thing and is belt driven by this 3 phase motor and I just want to know if it is possible to wire to plug in my shop wall outlet? If so I probably ...
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1answer
77 views

Wiring for EV charger in garage

I currently have a 240 40 amp charging unit in my garage for my electric car. I believe the wire is 4 gauge; the charging unit plugs in rather then being directly hard wired. The unit is on a 50 amp ...
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2answers
759 views

How to wire up a 240 V oven?

I recently purchased a Whirlpool WOS51ES4ES electric oven from Home Depot with the intention of installing it myself. Our old oven is gas, so I need to run a new 240 circuit. The oven draws 20A. I ...
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1answer
151 views

Using ent conduit “smurf tube” for 4 4awg wires

I’m currently running power to my garage. I have to special order 1.5” flexible metal conduit. So I was going to just use some one inch stuff. I didn’t want to buy 25ft. So I found smurf tube. Can I ...
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3answers
127 views

Why do I read 120v between the hots and neutral in a 240v circuit?

I installed a 240v outlet for a new GE stove with its own 50 amp breaker. I ran a 50' section of 6/3 cable, 18' of it from breaker box to a vent in the foundation then I stapled the remaining to floor ...
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3answers
123 views

NEMA 14-30 outlet Installation question

I need to install a NEMA 14-30 outlet in my garage. It will be installed within 2 to 3 feet of the breaker box. My question is for esthetics. Can I run the wire from the bottom of the box through a ...
3
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4answers
316 views

Whirlpool electric dryer works on 120 but not 240

I am trying to fix my dryer but I have run into a problem I can't find the answer to. I checked all the fuses with my multi meter and everything seems to be working. Before I rewired a slot in my ...
2
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1answer
104 views

Running 240v from two separate 120v receptacles

In my garage I ran two separate 20 amp 120v lines, each to its own receptacle, each coming from one leg of my breaker box. I did this so I can run my table saw and dust collector at the same time. ...
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3answers
86 views

DIY Installation of 220v for spa

I'm thinking of installing a spa at my house but the additional wiring for 220v is going to cost around $1k and I was wondering whether it's something I could attempt to do myself?
4
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3answers
748 views

Help with sauna heater wiring diagram

Hoping to get some help understanding this sauna heater wiring diagram. Pics at bottom. Disclaimer that I have an electrician friend "helping" (not for free though!) me on the weekends so I can't go ...
2
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2answers
184 views

Exterior to Interior Wiring and Code Deficiencies?

I recently installed a 100a exterior subpanel adjacent to my main panel to allow for the installation of 240V and 120V service to a shed on the opposite side of my house, along with a 240V dryer of ...
2
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2answers
82 views

240VAC outlet double or single relay?

I have a 240VAC garage outlet that will be turned on via a control relay. Is it best practice to switch/relay both lines, or just one like 120V~ loads?
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3answers
619 views

Adding new 240v 30 amp outlet by tapping into existing NEMA 10-30 outlet box

Here's the situation: House was built in the 1980s. My laundry room has an existing NEMA 10-30 outlet that is not being used since we have a gas dryer. I am thinking about getting an electric car so I'...
2
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1answer
132 views

Connecting 240 volt generator to Main Panel

I read previous posts that explained that the Sub Panel has a separate connection for ground and separate for neutral, while the Main Panel does not separate the ground & neutral - this is exactly ...
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2answers
317 views

Future proofing for 240V outlet

I currently have a 12A EVSE that takes either 120V or 240V and uses a normal three-prong (NEMA 5-15) plug. I am looking to install a 240V outlet on a 50A circuit breaker to use with this EVSE, but I'm ...
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2answers
101 views

Replace 240 receptacle with one or two 120

I found some similar questions but given possibly different base assumptions I would like just to check that what I want to do is possible with existing wiring. In NYC, where everything is armored ...
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1answer
56 views

Spa pump wiring

The house we purchased has a 220/120 32 jet spa. The 220 drives a circulation pump, heater and runs the 2 hp 1-speed jet pump. The jet pump is poor quality and undersized for that amount of jets and ...
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2answers
102 views

Should I replace a stove wall outlet that became loose but we bent back the prongs?

The stove suddenly quit working, with only the broiler still working. Upon investigation, the 3 prong stove outlet prongs inside of the outlet appeared to have been spread apart too far so the 3 prong ...
5
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3answers
2k views

Replacing old plug-in 220V range with new hardwire 3-wire electric cooktop: remove outlet or add a plug?

My apartment had an electric range which plugged into NEMA 10-30P/10-50P and was served by two 50A circuits. I will be installing electric/220V induction cooktop using the same circuits. There are ...
3
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1answer
64 views

Can I draw 240v out of this configuration?

This is how my subpanel looks like. I am looking to install a breaker for an AC unit. 20A. The only caveat is that this has to be 240V. This is a subpanel coming from the main one. There is a breaker ...

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