Skip to main content

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.

Filter by
Sorted by
Tagged with
0 votes
2 answers
34 views

I want to plug my NEMA 6-50 extension from the wall to my welder

I have a welder that draws 45 amps and (will soon have) a NEMA 6-50R outlet in my garage. I bought a very nice NEMA 6-50 extension cord, expecting to cut the female end off and wire it to have a long ...
user1683793's user avatar
0 votes
4 answers
85 views

How can I switch between high-current 240V devices in my workshop?

I am the only one working in my shop. I do not have to worry about anyone else switching power cords etc. I have a double 50 amp breaker, and only one 240v 50 amp outlet connector. I have to manually ...
Mizell Paint  Body Shop's user avatar
2 votes
2 answers
579 views

Which gauge wire for a window AC unit?

I’m planning to add a new dedicated 240v/20A circuit for a window AC unit. The route from the main electrical box to the outlet will require about 65-70 ft of wire. The wire will also travel about 10-...
Justin's user avatar
  • 145
1 vote
1 answer
59 views

Hooking up an Australian motor in USA

I have an Australian motor (240V single phase, Type I plug) that I want to use in USA. Australian 240V is 240V+Neutral+Earth(Ground). US 240V (NEMA 6 outlets) is 120V+120V+Earth. Can I simply rewire ...
Gene Schwarzrock's user avatar
1 vote
1 answer
71 views

#8 wiring to mini split keeps getting hot with only 20 Amp draw?

Okay I'm stumped here. I just had to repair the wiring to my mini split for the second time. The first time was last year when a fuse able link burned out at the unit. This year the wire at the ...
Dav_Daddy's user avatar
0 votes
1 answer
50 views

Can I split a 220 on an old house if I add a neutral wire?

I'm working on my late brothers house and need a 110 for the sump pump and one for the furnace. The house was built/wired in 1922. It has a 220 that was used for heating/AC, but it is a 3 wire circuit....
Larry55's user avatar
5 votes
2 answers
1k views

Do I have room to add a 240V breaker in my panel?

I’m trying to see if I have room to add a 240V line for a mini split. The mini split I got is a Gree with nominal 9 amp pull and manufacturer recommended breaker size of 20 amps. Any thoughts on an ...
Chris's user avatar
  • 53
4 votes
3 answers
1k views

Running two dryers same circuit, controlled by switch [duplicate]

I have two dryers side by side in my basement, one is for a dog washing business. One is for my clothes. I don't need both running ever at the same time so I currently just unplug and plug in ...
Blake's user avatar
  • 41
0 votes
2 answers
110 views

How can a 240V device with a single hot terminal be wired with two 120v hot wires?

US based. I am looking to install this radiant floor themostat: https://www.homedepot.com/p/QuietWarmth-120-Volt-240-Volt-7-Day-Programmable-Floor-Warming-Thermostat-THERMPRO/318528774 The thermostat ...
Andy Hall's user avatar
  • 237
1 vote
1 answer
144 views

Is it possible that a 240V wall heater is connected to one breaker?

I have an old wall mounted electric heater. It takes 240v. I only see two wires that it’s connected to and at the breaker box it’s only connected to one breaker. The breaker that it’s on only has one ...
milesmeow's user avatar
  • 5,106
3 votes
1 answer
61 views

New 40Amp cooktop, should I run 2 wire or 3?

My old 30Amp cooktop finally gave out. Picked up a new one that is 40Amp and requires a new 8 wire. The cooktop is only a 2 wire connection. Is there any value in running a 3 wire with neutral? The ...
Know One's user avatar
0 votes
2 answers
100 views

Drawing up to 12kW through a NEMA 14-50R at 120V

The 14-50R has L1, L2, Neutral and GND connections. Of course, you can draw 12kW across L1 and L2 by pulling 50A from the circuit. In this case, there is 50A flowing in each of the L1 and L2 wires ...
Stephen Hicks's user avatar
0 votes
1 answer
105 views

Is my 240v outlet wiring adequate for a welder?

My garage has a 240v outlet and when I tried to switch the breaker on it tripped the main. The garage has a breaker box that is wired into the main house box. The main box (200 amp service) has two ...
James's user avatar
  • 1
0 votes
2 answers
114 views

How to convert unused 3 prong, 250V, 50A, F receptacle to regular 120V one?

I have an unused 3 prong, 250V, 50A, F receptacle in my basement. Is there an adapter out there that can convert this to 120V? Since it is 3 wire (including neutral), I believe we should be able to do ...
Amir Et's user avatar
0 votes
1 answer
126 views

Adding 240 V Circuit Through Attic

I am planning to add a new 240 V circuit to install a induction style range. There is an abandoned 240 V outlet at the location when a gas range was added however this is a 2 wire system without ...
SaunaBuilder's user avatar
1 vote
2 answers
107 views

Use one leg of oven's 240v supply, to simultaneously power a 120v microwave?

I just removed a double wall oven, because the control panel had partially melted. (I suspect the previous owner used the self-clean function, which in my opinion is an anti-feature for ovens.) ...
Cognitive Hazard's user avatar
0 votes
0 answers
124 views

Mini split plug into existing 220 outlet?

I’d like to use my dryer 220 outlet to power a mini split. Can the 220 from the mini split be plugged into that outlet?
Paul's user avatar
  • 1
2 votes
3 answers
1k views

Is it safe to bond the neutral to the junction box in a Nema 10-30 circuit?

I have a 1940s house with a Nema 10-30 receptacle for the dryer. Halfway from the main panel, this circuit is spliced in a junction box, and in that box, I see there are only 3 wires: 2 hot and one ...
Byofuel's user avatar
  • 121
7 votes
2 answers
2k views

Can I run wires from separate panels through the same conduit?

I own a duplex and the attached shed is divided in 1/2 for each side of the duplex. On the rear exterior are the 2 electrical panels, one for each side of the duplex. I was going to install hookups ...
tacomaguy20's user avatar
9 votes
3 answers
2k views

Is this 240v circuit to garage for electric charger good or did I miss something?

I'm adding a circuit to my garage for an EV charger. Yes, I have pulled a permit. I live in Massachusetts. Here's my plan: I'll be adding a new 60 amp GFCI breaker to the panel. Yes, there is space in ...
holmeski's user avatar
  • 195
-1 votes
1 answer
122 views

Wiring 6-50 Welding Outlet [closed]

A couple clarifying questions on my welder outlet install. Prior thread: 240v Welding Outlet Right Near Breaker Box One issue is that since I don't have any real NEC knowledge - it seems that every ...
Matt's user avatar
  • 19
1 vote
1 answer
191 views

How do I wire a 4-wire 220v cooktop to a 3 prong plug?

I just bought a new cooktop which comes with 4 exposed wires. It also comes with a diagram on how to configure it using a NEMA 10-50p type plug -- which is great because that matches the type of ...
Jason Anchía's user avatar
1 vote
3 answers
170 views

240v Welding Outlet Right Near Breaker Box [closed]

I have a garage where I want to install a 240V / 50A outlet. The garage is finished with drywall. I want to place the outlet adjacent to the outside breaker box (but inside). Questions: What wires ...
Matt's user avatar
  • 19
2 votes
1 answer
99 views

Need help adding 240V outlet to my residential garage

I am adding a 240V outlet to my garage, wired from directly outside the garage (12" from panel to outlet). I have a conveyor dryer unit for a small business I run from home. This unit has a 4 ...
user avatar
0 votes
0 answers
55 views

220v equipment in different areas of my home having intermittent issue

I live in united states. washer and dryer in laundry room in my home microwave and oven in the kitchen area has been turning off after 8-15 seconds of operation every now and then. oven displays bad ...
kc22's user avatar
  • 1
0 votes
2 answers
38 views

power point is turned off but usb charger led still flicks on

I have a 240v power point, the switch is turn off but a usb charger i have plugged in flashes about once every two minutes. Why would it flash if the power switch is off?
Bright spark's user avatar
0 votes
3 answers
122 views

Single pole relay on a 240VAC split phase circuit?

I'm installing an EV charger but my panel is only big enough to run either the dryer or the EV charger at the same time. So I have a current sensor on the dryer line so that when the dryer is running ...
Wise Shepherd's user avatar
10 votes
1 answer
2k views

Can I install and safely use a British 220V outlet on a US 220V split-phase circuit?

I have a British tea kettle I like very much. I have space in a subpanel in my kitchen for a 220V 15A circuit. If I purchased a British receptacle and wired it across the 2 hot wires, rather than the ...
bongo fury's user avatar
0 votes
1 answer
72 views

Installing a 220v breaker

I’m adding steam humidifiers to our two HVAC units, they currently run on 110v but will double the output on 220v which we need. I’ve pulled 8 gauge wire to the panel box and will terminate in a ...
Miffedone's user avatar
4 votes
2 answers
142 views

240V Four Prong Outlet - Inconsistent Behavior

An odd issue arose with my dryer outlet, and I am more concerned than initially. Below are the chain of events: Dryer: Samsung dryer spun, but did not heat Replaced heating element Plugged in, did ...
TomAder's user avatar
  • 41
0 votes
1 answer
108 views

For detached garage: buried cable or overhang? [closed]

I am a DIY guy, looking into bringing 240v into my detached garage. Will be running air compressor, welder. Will install a 100amp Subpanel. Should the cable coming from the house (main panel) to the ...
David E's user avatar
  • 103
2 votes
1 answer
133 views

Can I use a 120v load tester to test a 240v circuit by testing each hot wire separately using the ground wire as the neutral?

I have an old house and want to make sure that the wiring for all of the 240 baseboard heating units are still up for the job and not likely to overheat or have any conductance issues. No obvious ...
Mychael's user avatar
  • 21
0 votes
2 answers
476 views

How to run a 220v mini split on 110v wired home

I have an off grid apt in Baja California Mexico. The apt is wired for 110v. I would like to integrate an ac200max solar generator as well as a 550w dual dual generator. How can I integrate all of ...
O M G's user avatar
  • 9
0 votes
3 answers
88 views

120v AFCI breakers tripping due to lost 240v leg in same panel

I had a weird electrical problem and found the fix, but I'd love to understand the mechanism by which this happened. Disclaimer: I'm not an electrician, buyer beware, etc. The symptom I had was 3 ...
FixStuff's user avatar
1 vote
1 answer
411 views

Install Honeywell RLV4305A in box with 6 wires

I am trying to install the referenced thermostat for my baseboard heat in one room. I did follow along this post 2 wires, both hot, for 240v baseboard thermostat After color coding my wires that post ...
user111700's user avatar
1 vote
1 answer
224 views

Older 220V heater wire keeps burning out

I have an older 220V heater that came with the house I bought. It worked wonderfully for years, but then a wire burned out and each time I replace it, it burns out again within a week. The original ...
zynovij's user avatar
  • 11
1 vote
0 answers
75 views

How do I wire my 3-wire cook top where there used to be a 4-wire one?

I am changing out a 25-year old 240v cooktop with a new cook top. The old cooktop had 4 wires and the new one has 3. After the white and green, the junction box has 1 set of 2 purple wires that the ...
A Doc's user avatar
  • 11
0 votes
2 answers
268 views

Single phase induction stove push in quick connector difficult to connect

We had to change the current stove we had for and induction one (long story) which I also installed. With this new one, I have a 5 wire single phase setup. I think it is because each stove module ...
João Santos's user avatar
1 vote
2 answers
64 views

I want to use a thin gauge wire from a Nema 14-50 outlet [closed]

I have an RV and want to plug into the typical Nema 14-50 outlet found at campsites. However, I am never going to draw more than say 15amps. I would rather not have a heavy bulk cable that will never ...
John's user avatar
  • 9
0 votes
0 answers
41 views

240 volt patio heater on timer won't turn off

We had a 240V ceiling mounted patio heater installed 10 years ago and last year the timer switch started buzzing loudly when the heater was turned on. I swapped out the timer switch with what I ...
Andrew West's user avatar
1 vote
2 answers
430 views

Burnt 50A 3 prong range outlet: DIY replace, have professional do it or rewire to 4?

A couple of weeks we purchased a house built in 1981. First time we tried to cook something in the oven, we heard a loud pop from the wall, so I flipped the breaker and decided to take a look. What I ...
RebelWithoutAPulse's user avatar
-4 votes
2 answers
237 views

American commercial 240 volt microwave oven in American residence [closed]

There's been a few questions about using foreign 240 volt kitchen appliances, teakettles from UK seems to be a popular one, in the USA but I haven't seen any about domestic 240 volt appliances in the ...
MacGuffin's user avatar
  • 393
3 votes
2 answers
527 views

How to connect 3-wire cook top appliance to 4-wire junction box

How to connect 3-wire cook top appliance to 4-wire junction box. 3 wires from new cooktop are black, red & green....existing wires in box are bare ground, 2 black wires and 1 grey wire. So my ...
Chris's user avatar
  • 31
3 votes
1 answer
183 views

4-prong dryer outlet (NEMA 14-30R) with asymmetric hot to neutral readings (110v and 130v)

I recently renovated my home and re-did all the electrical from the service drop on down. Everything appears to be working correctly so far except one circuit. I have a NEMA 14-30R receptacle wired up ...
Brandon Weiss's user avatar
0 votes
2 answers
517 views

Wanting to split a 10/3 wire coming from a 30amp breaker

From my main electrical panel I have a 30 amp 240v breaker with 10 gauge wire running to a shed. What is the safest and most economical way to split that wire in the shed into two?
David Hahn's user avatar
4 votes
1 answer
1k views

How to wire 240v wall oven with only 3 wire (L1, N, PE)

Bought a house (in Canada) that came with a replacement wall oven. Getting ready to install and ran into a snag. There is only 3 wires (L1, N PE). Oven is an Electrolux EI24EW45LS 240v 60 Hz. Every ...
Sterling's user avatar
1 vote
1 answer
621 views

Is the wiring on this NEMA 10-50R incorrect?

While looking into EV charging I noticed I had a 240V receptacle (Leviton 10-50R) conveniently located right beneath my main panel. After some research (I have little to no electrical knowledge), I ...
luk's user avatar
  • 93
0 votes
1 answer
41 views

Confirm black hot white hot one double pole 20amp for well

I bought a home on a well. Several years later I am putting in a transfer switch for my gas gen. I have a good understanding of wiring and various wiring needs. Ok - my well is on a double 20amp with ...
Mike Clouthier's user avatar
0 votes
1 answer
497 views

Grounding stranded aluminum wire to junction box - 240v, for stove

I am attempting to replace a 110v outlet with a 240v outlet. This outlet is behind the stove in my kitchen. It was formerly powering a gas range, and this new outlet will be used for an electric range....
Dan Scott's user avatar
2 votes
1 answer
77 views

Can I upgrade NEMA10 to NEMA14 without replacing the NMC?

As noted previously, my stove is currently on a grandfathered hot-hot-neutral circuit. I really should replace that with one that includes safety ground. Currently (sorry) this is fed by an NMC cable ...
keshlam's user avatar
  • 30.4k

1
2 3 4 5
10