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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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
99 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 ...
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2answers
64 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
141 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 ...
2
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3answers
143 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
91 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
70 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 ...
2
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2answers
153 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
75 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 ...
0
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1answer
85 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
32 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
78 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
54 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 ...
2
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2answers
671 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
78 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
118 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
105 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
167 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
98 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
84 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?
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3answers
460 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
96 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
80 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
168 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'...
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1answer
93 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
205 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
91 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
39 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
57 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 ...
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3answers
1k 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
62 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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2answers
843 views

Can I use #10 wire for a 30A, 240V pump circuit?

I stand corrected, 240v not 220v so I hope my question now makes sense. I have 2 30amp breakers connected together. I believe this gives me 240v. I plan to connect this circuit to a 240v irrigation ...
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1answer
31 views

Wire size for water heater

I'm installing a instant on demand water heater that requires a 220v - 40 amp circuit and would like to know what size wire is required for a 50 foot run. ??????
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2answers
178 views

New mini split ac on existing Spa disconnect

I'm installing the mini split and wiring it to the disconnect they had for a spa which is now long gone. They wired a 110 gfci off the disconnect which I'm not touching. Coming in from the main ...
30
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3answers
9k views

Why am I getting an electric shock from the water in my hot tub?

I have noticed that when I touch the water of my Hot Tub when I am grounded (barefoot standing outside of tub) I am getting a very small electric shock. Using a multimeter it is reading 2Vac between ...
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0answers
70 views

240v 4-wire power issue

To start, i repair hot tubs for a living and am not a licensed electrician. But I recently am having a problem with a job that I know I have had many years ago but I just can't remember what solution ...
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0answers
44 views

Dedicated 240v 30A Circuit Switched for A/C and NEMA 14-30 [duplicate]

I have a dedicated 240 volt circuit that's hard wired into my air conditioning unit. The circuit has a 30 amp breaker at the main box and another 30 amp breaker on the wall next to my air conditioner....
10
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4answers
5k views

Confusion over 220 and 230 volt outlets

We have a 220 outlet for our A/C. We are shopping for a new unit and all I am see is 230 volts on the units. Will we have to rewire with a new outlet for a new A/C?
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2answers
136 views

Can I connect an LED light fixture to a 240 volt oulet?

My question: I'm replacing a metal halide fixture with a LED fixture. The outlet is single phase 240V (split with no neutral). Is it ok to connect the LED fixture to this outlet? I'm asking because ...
3
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2answers
67 views

Need help understanding amperage ratings for panels and sub panels

Im trying to understand the concept of amperage ratings for panels, and sub panels, but I'm not sure I have it figured out, sorry for any novice terminology. I'm in America. Grounds omitted for ...
2
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2answers
932 views

Understanding the wiring of 2-Pole Quad Circuit Breakers

I only want to understand the concept, so you dont have to address if my panel accepts tandem breakers or a certain brand of breakers. I will also omit any reference to ground wires for clarity. I ...
2
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4answers
202 views

Can I plug my new LG-LW2217IVSM A/C nema 6-15P into a 6-20R with a 20A-240V CB?

The user manual says to use a nema 6-15R with a 15A two pole Circuit breaker(240V). But my existing setup is a nema 6-20R with a 20A two pole CB(240V). I realize a 6-15P plug will fit into a 6-20R ...
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2answers
1k views

Swapping L15-30 with L21-30

I have some plugs in my warehouse that have L15-30 receptacles. Inside the boxes are four wires: Orange, Black, Red, and Green. I would like to swap one to an L21-30 receptacle. It looks like the main ...
4
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3answers
3k views

3 prong range outlet

I wired a 3 prong range outlet using 8/2 wire. I had a black insulated, white insulated, and a bare single strand copper wire. In the outlet I wired the black wire to one hot side and the white wire ...
2
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2answers
212 views

Can I feed a sub panel off my 200A service box? Or would I need to run wire from the inside breaker box?

Can I add a sub panel feed off my 200A service box? If so what are the requirements? Or would I need to run it from the main house breaker inside the house and wire from there? I currently have a ...
9
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4answers
6k views

Is it safe to use two single-pole breakers for a 240 V circuit?

I recently had an electrician come out and replace my electric panel. He seemed very knowledgeable and overall appears to have done a good job, even went through and labelled most of the panel... ...
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1answer
75 views

Running 40ft of wire to garage, buriable

I'm running the wire to my garage. Wanting to run a 220 air compressor And couple 110 outlets and lights. Is it possible to run 10/3 or do I need Like 10/4. For that extra hot. I'm running from ...
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1answer
186 views

Extend radial circuit with new socket - diagram

Similar to this question (Can I use Wago connectors to extend a ring main?) I am planning on using Wago connectors & boxes to add a new socket, however I don't know if my circuit is a ring main ...
1
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1answer
611 views

220V GFCI circuit breaker neutral

I have a 220V 15 amp body dryer with 2 prongs on the plug (European). Manufacturer instructions indicate to connect 2 hots and 1 ground to the receptacle. Since this is in a bathroom, I have installed ...
2
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3answers
227 views

Wiring solution for 240V EV charging outlet in garage with long run to breaker box

I am trying to come up with a wiring solution for a NEMA 14-50 240V outlet in the garage for an EV. Specifics of my situation: Max charging current will be 32A, so I need #8 wire. Breaker box is on ...

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