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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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 ...
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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 ...
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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 ...
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2
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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 ...
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1
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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 ...
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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 ...
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2
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173
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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2
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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 ...
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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 ...
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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 ...
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1
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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 ...
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139
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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?
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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 ...
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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 ...
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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 ...
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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....
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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 ...
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339
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Dryer, laundry, bathroom in 3/4” flex FMC?
Can I have one 240V 30A circuit with 3x8AWG (clothes dryer) and two 20A circuits (washer and bathroom circuit, 120V with neutral each) together in one 3/4” flex SMC?
I believe so but I haven’t found a ...
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Do I need to ground a new metal 240V outlet box?
I’m installing a 240v 50amp outlet directly off my service panel. I used a metal box, with 3/4” PVC conduit, and 6ga THHN wire.
Do I need to ground the box in any way, and if I do, can I just run a ...
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How does this controller board (and contactors) for Harvia Sauna Stoves regulate the kW that reaches the heating elements?
Is there anyone out there who can tell me how this circuit would in any way regulate the kW that make it to the stoves heating elements? Maybe it is that all regulation of the 240v 1pH dual pole ...
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Can I use unused Neutral for ground on a 240V cooktop?
My cooktop has black, red and bare ground wires (brand new pre wired this way). Power supply has a neutral and no ground. Do I just leave it disconnected as shown? Is this connected correctly? Or ...
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240v outlet leg b voltage drop under load
I have a 3 prong 240v outlet for a dryer that reads 240v across both legs and 120 across the ground. When I turn the dryer on and have the multi meter to the ground and a hot leg it shows 120 but if I ...
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Multiple devices on same three phase circuit
I have a three phase, 30amp, 240 volt circuit that is feeding two three phase, 20amp welding receptacles. I would like to change out one of the receptacles to a 20 amp, 240 volt three wire receptacle (...
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UPS 30 AMP 240V question
Okay here is what I am trying to accomplish.
I have a computer rack in my basement and since I am an IT guy to the extreme it has a lot of servers in it. I have a UPS 240V 6000KVA unit. It is rack ...
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pool heat pump wiring instructions DOEL 19000btu, 5.56 kw, 220v single phase
I am trying in install Doel UHP056CS, name tag says 220 volts, however it comes with a pigtail already wired with a standard 110v male cord.
Power Input label L, N, Ground, (three connectors)
Water ...
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Have I missed anything in my plan for a new 240v circuit?
I'm a beginner adding a 220V 40A circuit via exposed conduit for my new induction cooktop. Does this plan look reasonable?
Under counter metal junction box grounded and mounted to back of cabinet. ...
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Will installing European outlet in US change frequency to 50Hz?
I'm planning to buy a Siemens coffee machine from Europe. It uses 220-240V 50Hz. Previous models work just fine in USA using 240V outlet (my electrician was able to get it done, I bought leviton 5031-...
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Using a countdown timer to control a 40A 240V contactor
It seems there are a couple ways to do this, but I haven't seen the exact solution I'm looking at so I wanted to check with the community on this.
I have a 4KW patio heater I'd like to control with a ...
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Can I ground a detached garage to adjacent soil instead of connecting back to the panel?
I have a 50s house that has some 10/3 without ground for 240v/30a running to the garage.
It's easier to run a ground wire to the outside of the garage and to the earth than it is back to the panel. Is ...
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What type of sheathed wires to use for 240V without neutral?
I am looking at two different circuits 1) for an oven and 2) for a radiant heat system. Both 240V. The oven circuit requires a neutral, while radiant heat circuit does not.
For the oven, I use a #6/3 ...
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Why dryers or oven have a neutral if 240V circuits do not require neutral? [duplicate]
I am looking at two different circuits for 1) an oven and 2) a radiant heat system. Both 240V. The oven circuit requires a neutral, while radiant heat circuit does not.
Why oven or dryer circuit have ...
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How important is a grounded stove outlet?
Apologies if covered elsewhere... My place has the old-style three-prong 240V stove outlet, two phases plus neutral. This means the stove (recent, induction) doesn't have a safety ground. The closest ...
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120V tap off 240V 30A water pump circuit
My well is powered by a 240V 30A circuit, the only circuit to the well house and the expansion tank and pressure switch. I want to winterize the lines in the well house with a heat tape, but the only ...
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Floating neutral in 4-wire dryer outlet with 3 wires in?
So what do I do with this 3 wire cable into a 4-wire dryer outlet?
I had put a 4-wire cord on the dryer and took off the ground-neutral link in the dryer, but it doesn't operate. (I'm guessing the ...
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Are there particular requirements for cabling or conduit use for outdoor lights in the UK?
I'm seeing a lot of conflicting information about outdoor wiring, whether conduits, steel armour, etc. are necessary. I assume this might be due to particular 'zones' as in bathrooms, but I can't find ...
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Can I install a mechanical timer switch on a stove circuit?
I’m looking to put a timer switch on a stove circuit. It’s a common area stove that a client doesn’t want used at night due to people turning it on and leaving it open. Is it possible to put a timer ...
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Utilizing 240v from an abandoned dual-pole 30amp breaker for subpanel
Helping my dad with a walk-in tub installation and need dedicated 20amp line. In effort to avoid cutting up a major part of the basement ceiling to access main house panel, I'd like to use an ...
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splitting 10 AWG to L6-30 receptacle
TLDR; Can I take the (3) 10AWG THHN lines and split them to (2) L6-30 receptacles
Background:
I have 240V wired in my server room (computer equipment) and currently have 10AWG THHN running from a ...
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How do I wire Neutral on a AC disconnect box?
I've looked at multiple AC disconnect boxes, though haven't ordered any yet.
On every one I've seen so far, they have a connection for both phases of the 220v, and also a connection that appears to be ...
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Need advice on how to install 240V outlet for greenhouse heater
Update
Based on many inputs a much better solution is the heat pump. Big thanks to Harper and manassehkatz for the help, both answers are great and very helpful.
Original Post
Long story short, my dad ...
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Can I use a 60amp AC disconnect box for a 30amp circuit?
Can I use a 60amp 240v AC service quick disconnect box, despite my romex, circuit-breaker, and AC unit being merely 30amp 240v?
I'm getting ready for a AC tech to install a split unit AC, and am ...
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2 sets of 12/2 romex for one 20 amp appliance?
I have a lot of 12/2. I have a 20 amp appliance that I am replacing with a new 20 amp appliance. However the old appliance is 110 and the new appliance is 220. Can I run a second 12/2 romex to convert ...
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Can I wire a 240v stove to 120v outlet (one hot and one neutral and ground, other hot capped off) solely to use the range top burner pilots?
A friend has a stove with a gas range top and 240v electric oven. He does not have space in his circuit breaker to wire a 240v double breaker and would need a whole new panel installed so too ...
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