Will a 240v heater run on 208v. This is a 240v heater.

Will a 240v heater run on 208v 1K views 3 replies 4 participants last post by AllanJ Mar 13, 2011. Is it a commercial, industrial, I know that the 120/208v and 120/240v panel boards are same lay out, Can you run a 240v charger on 208v? I want to be able to charge my electric motorcycle at j1772 charging stations. (This unit only has two hot lines and seems to be designed to operate between two legs and neutral of a 240V 3 phase circuit. So if you are able to add a double pole breaker (or use tandems), that's all you need to get 240V, you don't need a third conductor. 82 ohms 4kW @ 240V = 16. In speaking with a sauna expert, I've been assured that my sauna can run on 208v 20 amp, it will only take longer to heat up. Therefore, the 208V elements will likely fail on 240V and that failure may be spectacular (very dangerous). This can be supported by most modern devices, but you must double-check the device’s nameplate to be powered. Reply reply In fact, I believe that the right formula to use to calculate the cooktop demand is: P = I x ESo P = 30A x 208v = 6. If you don’t know better, you may conclude that 240V and 208V are the same. jap Senior Member. Theres a 150 amp 2 pole breaker feeding to a single phase panel in his house. Any attempt to use that on 240V and it gets very hot very Run a Heat Pump Dryer, 1. You can’t expect the efficiency to remain the same because the 240V device has fewer volts to work with. A 240V motor will run slower on a 208V system. I was there to wire up a simple electric tank water heater. Running slower decreases the counter EMF (back emf?) and the current will go up. 6A. 2) The nominal line-line voltage is 208V, and this isn't a nominal utilization voltage (sometimes you will see loads designed to connect to nominal 240V supplies called 230V or 220V loads; these are utilization voltages, and essentially mean the same thing as '240V'. 03-16-2009, 09:17 PM. Most power companies will not run a 3 phase service into a residence. In addition, 240V heaters usually have a different plug configuration than 208V heaters, NEMA design specifications call for motors to have at least a +-10% input voltage deviation specification, so a 208V motor should be able to handle 229V with no serious consequences. 208V is kind of an odd duck, most 230V equipment will work fine on 208V, but has no tolerance for added VD because 230-10% is 207V, so it's only 0. It isn't unusual to have 208v chargers. 208V. Senior Member. Total wattage is lower on the heater elements at 208v, meaning less current. That separation is even smaller for 220V. 208V is really a different lower voltage. I have a 240v water heater which is ready to be replaced. k. typically with any electric heating device if you reduce the voltage to half of what it oringally rated IE. Drying phases take a little longer but I haven't run into any issues empirically. ) Unfortunately, it is rated for 208V, and our house has 240V. After all, they are separated by a mere 32 volts. If lighting is the primary load, 480V "wye" is a "swiss army" voltage, allowing 240V/480V motors to run in delta connection and lighting to work in wye, using a hot-neutral 277V connection. Many heaters can be internally wired for either 480 or 240V. O Smith Century 56-Frame Two-Speed motor. Power Cables Required to Switch from 120v to 240v for Dell Poweredge Servers. 84ohms). If I set it to run on 230 will the 240 in my garage ruin the welder? Thanks. Which is why I don’t hook a 240 volt water heater to a 208 volt circuit . Most electric dryers are rated at 240 volt. M. A lot of equipment is even dual rated, or has a service factor of 1. A 240 volt motor on 208 volts will run a little slower. Status Not open for further replies. The elements will run roughly 25% less. If you do need 240V, you can probably use a 32V transformer in I bought three 10000w heating kits. Can I run this equipment with 208V single phase power? Per T220. I assume the OP is talking about single phase equipment. So, what does the rating plate on it say? Building supplies 208V but equipment is designed to run on Power Supply of 240V, 60Hz, 3Phase, and the motor Power is 7. Apr 2, 2010 #3 UPDATE: The unit works on 208V. growler Senior Member. It's worth a shot to check current draw and see if you are safe. 208V instant water heater on 240V; 208V instant water heater on 240V. But if it is 3 phase service, you have an issue with the 120/240V 3 phase 4 wire issue. Now, months later, I am ready to install it and find it is actually a 240V water 30A fuses are a bit to small for the heater with 28A draw, even if you had a 208V supply. Heaters will run at reduced output, and motors will either run a bit slower or draw more current (amps) to Many (probably most) heating appliances are rated for both 208 and 240V operation. 2ohms. Will this. The nameplate will occasionally specify acceptable voltage ranges of 208-240v. At 208v the server will probably run a bit more efficiently, so they're still ahead on the power bill. The “1PH” marking is odd in the context suggesting that maybe it shouldn’t be used on a I am using it as a whole house fan. Will this run on my single phase 240V supply to my garage (I have up to 50A breaker), or do I Typically, the control panels, motors, and other less power-intensive loads will run on 120v, while the more power-hungry loads like heating elements will use 240v. It's a pain in the A though if residents don't understand and buy or bring the wrong replacement equipment. At 240V it will draw ~32A, so you need bigger fuses. WH is of course good for 240 or 208v. kndroy Aluminum. Therefore, running the 277V model (4150W) at 240V would pull ~3595 watts (using ohms law) which is more reasonable for my needs. The following voltages are associated with a 120/240 system: 110/220. Remember that both 208 and 240v are 120v to neutral. As you mentioned there are no cheap controllers for 240V. As this is a commercial building, we only have a 208V, 4W system available. You can run 240V on 208V but the efficiency of the appliance may suffer. Hello, I am looking for an experienced opinion which I am sure I will find in here. The manufature has us doing some voltage checks and state the machine should run on 220v. F. but it depends on what type of range the manufacturer has "allowed" for their equipment to run. It runs on 240V single-phase. A 240V supply is allowed to range from 228V to 252V (+/-5%). What's new. I can't see how Ryan got 38A or David got 34. It'll overload and fail just about immediately. The 208 volt tank has 6000 watt elements on a 40 amp circuit. 2. Do I need special wire for I need to change out a heat pump that was sized to big. Most motors in the last twenty years are made to run at either 240V or 208V. 50% OFF on Pre-Launching How many Watts Does a 240 volt baseboard heater need? A 240-volt baseboard heater requires its own dedicated 20-amp or 30-amp 240-volt electrical circuit. Wiring a 240v breaker Can you run 240v motor, water heater on 208v & vice versa Can you run a 208 volt motor on 240 volts? 220v dryer schematic wiring. Total: 3 (members: 0 A 240 4500 watt element will run 3380 watts on 208v. The HVAC industry has standards -- one of which is to make it possible to run their equipment at both voltages. Do tell us the details of the existing wire, though. How much heat that takes depends a lot on the dew point, which changes with humidity anyway. If you apply North American 240V 60Hz, that is 4:1, within 10% so you are good to go. Most 230 motors will run OK on 208 --240 can also but one should carefully monitor if Yes, it says 220/240, but that it's listed at 220V struck me as odd. MY 480v VFDs run on 240v SBAER-As Barry suggested- a transformer can make a 480v drive run on 240v ALL my 480v drives run on 240v SINGLE PHASE I use a dry transformer, wire the primary (480v) side to the input of my drive, and the secondary to the 240v mains (through disconnects and contactors, for safety and control, of course). Sometimes the nameplate will state 208-240v as acceptable voltage ranges. Being a building that is slated for rental to whomever and not knowing the type of business that will set up shop is tough. somehow can manage to run at either 208V or 240V -- here's what the description says: "The CK 20 E is capable of running at either 208V, producing 1500 watts; or at 240V where it produces 2000 watts. 75 amps and has 12. I am betting that most of it is heater load not motor, if so I do not know if it will get up to proper temp on 208. Get a step up transformer. There is a noticable delay in heating up an entire tank. Previous tenants never complained. You've all seen the orange box fans with a stove element inside? It draws 240V/4800W and will be situated about 75-100' from the breaker box. Sep 14, 2012 #8 The Reverse will quickly burn up a motor (set for 240v run on 480v) (4x the power consumption). Since your welder can operate on 208v you will be good to go. Many if not most public J1772 chargers operate at 208v since they are attached to commercial wiring, and not residential wiring. The heating element is a purely resistive device. 19 and 210. The nominal voltage is 240 volt, but homes may have 208V, 220V, or 240V power supply. All double pole and single pole breakers no 3 pole. That's what I installed in my commercial location. Joined Aug 10, 2004 Location San Francisco Bay Area that is more of a thumbrule than a hard and fast tolerance. A 12kW, 208V range (with its 8kW demand per T220. 32a=1997w or 133% above the nameplate rating. 32a (240v/28. Customer: Running a 240v baseboard heater on 120v I read that if you run a 240v heater on 120v line, you only get 1/4 out. Electric baseboard heater voltage Residential current can either be supplied at 240 or 120 Volts. 23 amps = 10. 05% of 208. 47:1, so it is 21% low compared to what You’re fine if the device’s nameplate says it can run at 208v (as opposed to 220 or 240v). 5KW. ; Clear Wiring: In a 120-277 volt light fixture wiring diagram, black, white, green, grey, and purple wires serve specific purposes, especially for 0-10v dimming. can this machine Menu. Then I checked the voltage on the electrical supply and it was only 120V. Electrical - AC & DC - Can a 240V water heater be converted to 120V? - I bought a new 12 gallon water heater off Craigslist a while back. And, yes, I've installed 240VAC 1 phase HVAC units where only 208VAC power was available. It came with a squirrel cage fan and housing. Most 240V heating equipment and small motors are usable on 208V. Should I get another 240v model, or switch to 208v? Thanks for your help. 40 ohms Now, connected to a 208V supply: You are probaby going to see requests for more info. Location Tampa Florida. Aztec 375W panel. See 210. Yes, it will work as others have said, E=208v Finding I=7. 2a=28. 24kWAt 240v, I = 6,240W / 240v = 26A. Location UK. Here's the only reference I found (PDF), search for B2235. mbrooke Batteries Included. There are NO END of apartments out their receiving two legs of 208Y120 power. In a panel made specifically for 120/208V 3Ph4W, there are no restrictions on putting 1 pole breakers anywhere you want to. If you If you run a motor made for 240 on 120 you will let the smoke out If the wire feeding this I have a rental property where a new tenant told me the hot water was running out. Sierrasparky Senior Member. The 208 V is a result of three phase power, and 240 V is the result of two phase (a. 15, which is conveniently how much higher current a motor will draw on 208. )-Jon Second, you don't need three phase, you just need 208V. A 240V, 5500W element will output 5500 * (208^2 / 240^2) = 4131 watts with 208 volts Any opinions on running 3 phase motors rated at 220/230/240 volts on 208 volts? I have seen this done before without any problems, but I am looking for opinions on the extra current draw and possibility of overheating by running at the lower voltage. Third, devices designed for 208V typically run on 240V as well. 4 Amps of current. I want to upgrade to a Running a 208V radiant ceiling heater from 240V. Am I correct that it #1-OK to run the 208V heater on the 240V circuit. If you can specify how many BTU/Hr. It was being fed 208V, and the tap on the control transformer was still the factory 240V setting, and it still had the big tag on Heater operation at 208v instead of 240v. Occupation Electrician. Generally if it is under 10HP, the differences are immaterial. ) My second thought was to bump down my 240 with a buck transformer. Your heater may not make the full 5500W at 208V though (it depends on if the heater is fitted with 208V specific elements or is left with the "stock" 240V elements) – ThreePhaseEel. 1 post · Joined 2011 Add to quote; Only show this user #1 · Mar 13, 2011. Can you run a 110v heater on 220v circuit? No. The GC is getting a 240V 1PH heater. Jump to Latest It can run on 208, you just need to turn the heat up a little to get the penetration. The new heat pump, a smaller unit does not come 277v single phase single pole, it only comes in Motors rated 115/200-230V or 115/208-230V should not be run on a 208V supply; older 3 motors rated 220/440V should be fine on either a 208 or 240volt supply if connected for lower voltage. 4:1. 25 amps and would only consume 3. I would say you have about 60/40 chance in your favor of it working ok. " Save Share 120/208V is common in larger multifamily dwellings, and if you look at the data plate for the range, it will have a lower KW rating for 208V, but there really is not anything that can be done about it short of a bulky transformer to boost the voltage, as the normal solution of a buck/boost transformer will not work because a range is 120/240V. Notify me about replies to my post The water heater with the 208V rated element is made for use on the 208V type of electrical supply system. 84ohms=8. Apr 17, 2008 #5 Simpsonelectric said: mostley lighting 120v and 1 204/208 heater. LG confirmed after I installed the unit that "the unit will work with 208V output as long as it has designated receptacle". . It'd be pretty ridiculous to design and market something that only does 208, as there are no major 208V-only markets. Reply to Nick. I'm pretty skeptical about a single phase electric oven truly being rated for 208V but not 240V. The motor most likely is 120v as well as the electronics and timer. It's possible - but not recommended - to run two 110 v heaters in series from a 220v circuit. Oups, they won't accept a replacement for a 240V now because it has been too long. Proven Professional 49 years Experience. A. If such a motor would be hooked to a 120V circuit, A common example is something with a 120V control system like a time clock, etc. It's easily done. New posts New resources New profile posts Latest Can I Run a 208 Volt Water Heater? Thread starter RustyKnuckles; Start date Jun 1, 2023; Users who are viewing this thread. But I have a chance to pick up a new Rheem-Ruud 208 volt water heater for a great Home. The heater, however, will be de-rated 25% from rated power. A 3000 watt element will only produce 2250 watts. Then it will depend upon if the heating element(s) are powered by You can run Single phase 240/208v machines from a 3-phase feed by using 2 of the legs out of the 3. You can run 120v Single Phase machines by using 1 leg, Neutral and the ground. A GE electric water heater stated “total wattage - 4500/3308” The instruction manual stated that for 240v 4500w, the breaker is 25 amps. This is a 240v heater. A higher voltage will cause a failure. A 240V heater will not work on 208V. The standard circuit cable for 20-amp circuits is 12-gauge cable; 30-amp Just buy a 240-120 volt step down transformer and use it as a step up transformer 120-240 transformer But lets see the motor nameplate first. If you just need 120 and 208 at the new panel, then it is okay to buy a panel that is normally used for 120 and 240. G. Can a 240V motor run on 208V? A 240 volt motor on 208 volts will run a little slower. Here's the data from a Rheem The heater is a 240V heater and may be used on 208V. Then one might wonder if a 240v stove will work on 208v. In diagnosis we found that our building service is 208v. I go to pull it out of the box and realize this now. The branch circuit must be sufficiently sized for the load to be Most equp will run on 208-240. I have a120v/240v single phase 3 h. If you’re not able to interpret the instructions, hand this one off. Assuming a 1000w 240v baseboard heater is wired to a 120 volt breaker, is it drawing 1000w to produce 250w of heat or is it just limiting both input and output to 250w. But, I could run them off of 120V, Working in a farm chemical mixing facility with a 240V delta. If this is the case, they'll probably work just fine when new, then become problematic later as wear & tear & crud accumulate. running a 230V 3Ø motor on a 208V system will (as you noted) result in a higher current How to Wire High Leg Delta Main Panel for 120V, 208V & 240V, Single Phase & Three Phase Circuits? Wiring of 240V, 208V & 120V, 1 & 3-Phase High Leg Delta Breaker Box? Breaking News. I don't see it as a problem. You could use a transformer, but I don't think it would be cost effective. Craig. 38 KW. The infrastructure for 3 phase typically is not run in a residential area as there is no need. Location Atlanta,GA. 38 years Licensed Electrical Contractor in Illinois, Very common on HVAC equipment. Design of the 208V motor should be rated for +10% in voltage which puts you at 229V, but if your RPC is running at 245V out, your a little further than the range +10% Overheat could be possible, coupled with extra heat from not perfectly balanced voltages from the RPC. Should I buy a step up auto transformer or try the motor on 208V. That's the simplest, quickest and (most likely) cheapest way to get it going. I'm guessing the degree setting is for the usual 240v, higher wattage? Voltage Output: 208V or 240V; Thermostat Temperature Range: 45 to 135 degrees Fahrenheit; The body is made of steel; Heavy-duty heater; How Much Does It Cost to Run a 240V Garage Heater? Actually, the cost is independent of the voltage; rather, it 240V Water Heater Fed 120v. posted The element resistance is 4. rodorjenn Discussion starter. The cheapest thing to do is to provide a Nema 14-50 receptacle. Key Takeaways. Learn if you can use 208V on a 240V system, comparing three-phase and single-phase voltage and motor compatibility just because a 208v motor may be designed to run on 230v or 240v systems by using two power legs from the utility water heater, dryer, and oven require a 240-volt outlet to perform efficiently. With all of those free spaces where everyone is scared of the high leg. p. Contact options for registered users. Also a 230V motor on a 208V system where the actual voltage is around 215V is within operating range. Does 240v Supply Ruin 230v Equipment? Thread starter kndroy; Start date Nov 10, 2004; Replies 8 Views 19,856 K. It is a 3PH heater, converted at the factory. My electrical service entrance for this stand alone shop class is 120/208V, 3 phase, 4 wire. Even 220V 60Hz might still be in better tolerance (because they seem to imply that on the label). fan and only have 208v available. On a 120/240V 3Ph4W panel, some mfrs restrict you from connecting 1 pole breakers to the High leg. It happens a lot actually with Generator Enclosure heaters the big boys spec 240V Load panels and 240V heaters but operate them at 208V. There's about an eightyfive percent or better chance that your motors are either rated for 208V or will run on 208V. will a 208v motor run on 240v power? Jump to Latest 9. 67 amps = 14. I'm assuming the current is calculated using whatever voltage we apply. How do I give it 240v with only one hot wire? You're kind of asking if you can run 240v on the white conductor, (rather 208v if available). Hard for some peop!e to grasp that if you halve the voltage on any heater you only receive a quarter of the wattage. It will probably work OK with 240V, but the lifetime will be reduced, and it will output 12kW instead of 9kW. The reason for this is because 240V is a higher voltage than 208V, and thus the heater will not be able to draw enough power from the 208V circuit to operate correctly. 90kWh Rated 800W with wind. Six years later the units were still running strong. 9 Ohms which by my math gives ~8830W which would suggest this unit cannot run 240 as that would be over 11kw. However, a 208V-only heater on 240V will run at 33% higher power and this could cause overheating. No, a 240V heater is designed to run on a 240V power supply. 192V for pickup and 156V for dropout. But most of the time, motor space heater sizes are a S. At the moment, the only nearby available power is 4-wire 208Y 3phase. If you did have equipment that was sensitive to 208V specifically, you'd need a buck-boost transformer to convert 240V to 208V. Because these heating appliances are essentially just big resistors, is it possible to plug straight which would run about $160, For a 208V motor, the minimum operational voltage would be approximately 176V to 187V. And I've serviced a lot of those on one roof that the installer never switched it. 115/230, 125,250. Most of the time rated power is only The heater is a 240V heater and may be used on 208V. Any appliance that is rated for 240 volts can also be used on a 220V or 208V outlet. If you can convert it to 240V nominal, then putting it on 208V will get you about 75% of rated power which is a lot more useful. A 208V rated motor should not be run on 240V, nor should a 230V rated motor be run on 208V, motors rated 115/200-230V or 115/208-230V are fine either way, older 3Ø motors rated 220/440V will be fine on either a 208 or 240volt supply when connected for lower voltage. Get the transformer to up your voltage from 208v 3p to 240v 3p. Location United States. Forums. a. I looked into a transformer to bring the 240V down to 208V, but that doesn't solve the 1PH to 3PH issue. However, a motor running slower does less work so the current doesn’t go up as much as you might expect. I hooked it up, and it worked. In short, just because a 208v motor may be designed to run on 230v or 240v systems by using two power legs from the utility source, that doesn’t mean that it will provide the same output efficiency. Anything intended for the North American market (60hz) labelled 220V should work fine on 208 or 240 heater elements are a little less powerful at 208V, a motor made for 220V will run fine on 208-240. One is not connected or has failed. As far as I can recall every electric oven label I've ever seen had markings for both. I am assuming you are running this fan single-phase 240v and want to hook up to your 208v system. 208 v y 120 v, monofásico y trifásico cómo cablear el panel principal208 volt It will run, but how hot it may get are depend on many factors, specific to each situation. I would like to run a 240 volt (?) Kevin. However, A water heater is a single voltage load, so it needs only 2 wires, whether it's 120V or 240V. one phase) power. Nov 10 I will nderpend upon what portion of the 208v depends upon 208v. If you tap the line from the high leg, you will have 208V line to neutral instead of 120V, which will likely kill the controls. With this heater since it has a fixed resistance wont the heater have (2) differnt power ouputs depending on voltage applied. YMJOINMX Electric Food Warmer Kitchen Equipment with Cord & Plug 24" 650W Food Heat Lamp Strip Heater Commercial Food Warmer Food Heating Lamp Heat Lamp for Food Amazon US. No, it is not possible to directly connect a unit designed for 208V single phase to a 240V 3-phase system. All the datacenters I've ever talked to charge for power per amp. Data stream; Dec 15 There is no such thing as 208V single phase, if you are getting an heater that actually rated for 208V, it is going to be 3-phase. The old heat pump is a 277v single phase on a single pole breaker 22 amps. Location USA Just read the nameplate of an electric water heater 240/208V 1phase 4500/3380W (same for both upper and lower elements, non simultaneous operation) Name that tune. The source used the term lower "efficiency," implying that you get less out than you put in. How I can connect a 208 VAC water heater to 240 VAC? Mike G. The adverse If you wanted to run a 240v ac baseboard heater on 120v ac couldn't you just just use a 120v ac to 240v ac step-up tranformer? I already know what happens if you would run a 240v baseboard on a 120v circuit, the baseboard heater would draw 1/4 the power. A 240V dryer running on 208V, in my experience will run a lot longer to dry the clothes properly. Even if it's not, any 240V-rated heater can be run on 208 at reduced power. Can I run a 240V heater on 208V? Yes you can use a 240V heater on a 208V circuit, however the heater will only output 75% of it’s rated wattage. Think I'm gonna send it back. With a resistive circuit, the current draw will be directly proportional to the voltage, and the power consumption will be directly proportional to the square of the voltage. mike_kilroy Senior Member. If the controller uses 240-volt relays, they might inconsistently pull in on 208 volts. But the code does address it anyway. But 208V 60Hz is a ratio of 3. (My first thought was to Many appliances are rated for 208 or 240v as well due to the common use of 208v in apartment complexes and commercial environments, while residential and industrial usually have 240v. Assuming both are 4kW units: 4kW @ 208V = 19. Location Southeast Texas. 1; 2; 3 But connecting a higher rated resistance heater (240V) to a lower voltage system (208V) is fine. Smaller motors are manufactured under a compromise based on using a 220V design base +-10%, which makes them suitable for 198 - 244V, and it is generally accepted that 208V is used in "smaller" facilities where the distance from the service drop to the motor will not make it so that the VD is severe 230 rated single phase motors will run at 208 volts, but will probably not last long (more than a few weeks or months) before they burn up. N. Most A Despatch oven that is nameplated for 240V single phase can be operated safely on a 208V single phase circuit. Wired in a 35 gallon 30a water heater in a commercial building with 208v. 84ohms (208v/7. In Europe you run into the same thing, with panels being marked 400V or 380V despite the two being essentially the same thing. There were three different kits, one was rated 208v, there was one that was rated 208v-240v, then there was one that was 240v. is it permissible to install a 30A single pole breaker on the high leg and feed the heater with the 208 volts and a neutral? So a motor made for 220V 50Hz has a V/Hz ratio of 4. Just because your NOMINAL service votlage says it is 240V, doesn't mean you actually HAVE 240V at the motor terminals. 55) would likewise be fine on a 40A/208V circuit. A 240 volt heater can be run off of 208 but the wattage will be reduced. A heater with 12. 5 KW heater @ 240 volts draws 18. Running that resistor at the lower 208V will produce only 1126W of heat and will pull just 5. You need to check the elements. Here's the data from a Rheem 4500 @240 volt Watt Density Classification: LWD, Input Voltage (V): 208, Input Voltage (V): 240, Wattage at 208V (W): 3380 He had purchased an electric baseboard heater online but ordered 208V by accident instead of 240V. For the dryer, you'll need to carefully go through each internal circuit and figure out how to make it accept 120V. Archive. Heaters will run at reduced output, and motors will either run a bit slower or draw more current (amps) to make the same power. The power used by the heater will be 75% at 208 as it would be at 240. Location Washington State. Can you run 240v motor, water heater on 208v & vice versa120 volt hot tub wiring 480 volt generator wiring diagramCan you run a Is the motor being supplied with 208V three phase? That could account for some volume and pressure issues. This is because their 240V model will push the power limits of my inverter @4800W. No, the current draw will be less. To what extent, and by what mechanism, will it hurt the pump if it is powered by 208V instead of 240V? The proposed setup is Main panel (3 phase 208Y/120V) > ATS (designed for single phase 120/240V but fed 120/208V) > Subpanel (single phase 120/208V). Since industrial electrical is far from my expertise, i'm trying to find out how much of a difference 208v is as compared to 220v. If you want an actual measured 120 and 240 volt system at the new panel, you cannot get this from a 208/120 system without the use of transformers or some other means like a motor-generator set. Conversely, plugging a 208-volt three-phase piece of equipment into a 240-volt single-phase system may have a disastrous outcome to you and the delivery system. or total watts the element needs to be, I may be able to recommend a cheap big box home center solution. For example for a 5kW heater at 240V using V^2/R I get 11. Is 208v and 240V the same? Many people view 208 V and 240 V as the same thing, but they are not. Joined Jan 1, 2004. A 4. Will a 240V water heater run on 208V? I'm looking at a table in an old IEEE Grey book. It is rated at 208V. Jraef Titanium. So even though it may work on 208V system proper practice would call for it to be connected to a 240V system. It will become 104 volts to ground and 208V line to line. 8kW, 54 amps and is connected at panel to a 60 Double Pole / 6 AWG Wire (2-1 type, 2 hots + ground) and to the heater via a 60 amp breaker box that sits next to heater. I had planned to hook it up on a double pole switch feeding a three pole to rig it for either 240 or 120, but after hearing it run furiously at 240v, I decided to dial it This was likely run with 12/3 wire where they share a neutral return and 2 hots are sent. Problem is that we have a 208V service. W. Connecting 208V power to your 240V appliances is a bad idea, especially if the power in question is three We are currently at a "stalemate" position with the plumber: he's adamant that he needs 240V for the unit to run. Jim W in Tampa Senior Member. C. Virtually all small motors made in the last thirty years will ENTIRELY tolerate 200-230 VAC nominal -- its even on their name-plate. These rules are all about heating of the windings. I want to know if the Chronomite SR15L 277V instant hot water heater can run on 240V power. Most ranges and water heaters are rated 208 and 240, but with separate wattage ratings. Read the instructions carefully. This subpanel has been in place for a while now like this just without the ATS. Sep 24, 2018 #1 Gents, I don't like asking dumb questions but here I I have a welder that is configurable to run on 208/230/460 single phase. Thread starter jap; Start date Oct 1, What do you all run to this type of Water Heater? JAP> J. 32a) and that the power is now 240v•8. 20. New posts Search forums. Thread starter Fishn sparky; Start date Sep 24, 2018; Status Not open for further replies. Of course if you have gas ranges and gas dryers, it doesn't matter. There is a nice heater on craigs list that says it is 208V single or 3 phase, 36A. If the device's nameplate states that it can run at 208v (in addition to say 220v or 240v), you are fine. 208v to a 240v dryer. It is 220 volts, 11. Probably not very useful. Now that we have the resistance we can find that at 240v the new amperage is 8. Looks like a transformer is the way to go if you run heaters meant for 240v on 208v, they simply run at 75% power. Many (probably most) heating appliances are rated for both 208 and 240V operation. If you use the assumed +/-% tolerance of the motor's nameplate than you run the risk of having problems when the utility decides to use their allowable +/-% of nominal. It is marked as 208v only, not 208v-240v, and I do know from looking up info on it that it is a 3-phase. kcstott. Join Date: Dec 2007; Posts: 1086; Share Tweet #2. Home. I'm looking to replace the monster 220V wall heater in my bathroom that sounds like a B-24 bomber on takeoff. It is a 30 gallon Rheem rated for 240V. R. Before doing so I looked up the specs and saw it was 120V which is what I needed, so I bought it. Fishn sparky Member. Having read the specs, the unit can run at 208V with at a lowered output of 9kW, which I think should be sufficient. Besoeker Senior Member. Edit: I see you listed the device. The electric griddle is 240v, 15amp, so no problems there. The power connections available: Ground, LINE and Water Heaters - Water heater has a 240V and 208V element - I screwed up and forgot to turn off the power to my water heater when draining it (during a new water softener installation), and burned out the top element. Versatile Voltage Range: 120-277v LED drivers automatically adjust to any voltage within this range, including 208v, simplifying installations. Commented Nov 15, 2024 at 12:46 Can a 208V be single phase? 120/208V single phase is derived from 208V three phase power. There is no way to make this pair of outlets a safe 240 outlet for your garage heater with an adapter. If he is putting in a single phase heater that is 208V, it is technically a 240V heater that the manufacturer has made to also work on 208V so it can be installed in more places than just a house. Upon inspection, I noticed the top element is a 240V 4500W and the bottom is a 208V 3500W. For that reason, manufacturers produce heating units that can either operate at 120 or 240V, although there are a few models that run on Running machines on 208v? 03-16-2009, 08:59 PM. 55, a 12kW, 240V range (with its 8 kw demand) would be fine on a 40A/240V circuit. Hooking a 208V rated element up to a 240V operating voltage will overdrive the or go with an oversize 4000W or 4500W one, is between you and your tank. Commented Nov 24, 2010 at 13:16. Electrical - AC & DC - 240V Heater wire guarge on long run - I want to install an outlet for a portable construction heater in my attached garage. you can buy a buck boost transformer but it's realy not needed. He has no 3 phase appliances. Can you have 230V 3 phase? Even at three phase you can use the 230V. I've seen the voltage pickup/dropout numbers. I knew I probably wouldn't stay at that location forever and didn't know if the next place I moved to would have 3 phase service so I bought the 208v-240v kits. To that point, if the heater is rated for 250W at 230V, it will drop to about 205W at 208V. However, a motor running slower does less work so the current doesn't go up as much as you might expect. My supply store sold me a 9t51b0110 GE buck boost. Some machines do need 240v to operate correctly so if you only have a 208v it might be a problem. I will Will these machines run ok off the 208 or do I need to buy a transformer? Tags: None. anyway; all you need to do is keep the motor at or above the dew point without damaging the insulation. The second nameplate only lists 208V single phase and limits the applied voltage to 208V. Both 120v The elements will run roughly 25% less. However, 208V and 240V couldn’t be more different from one another. Do I say that the breaker should be 25 amps cause it’s a 240v circuit or do i say the installed 30amp is ok cause the heating elements run at 208v? thanks Hello, We're trying to diagnose why a test machine went down in our lab. My charger is one of the many Chinese chargers (red one, adjustable current, 25a) that has a voltage input of 240v. Was this A 240 volt heater can be run off of 208 but the wattage will be reduced. Posted by u/Generic_Humanoid9 - 1 vote and 4 comments Do the math. The heating element is the easiest; simply connect the endpoints to 120V instead of 240V. While this is close to 240 volts, by and large, equipment rated to run on 240 volts will not perform well and may even be damaged if run at 208-volts. It will run at about 19% of rated power. Share Typically, wattage ratings are in both 240 and 208, so go by the 208V rating or multiply the 240V rating by 208V/240V Reply reply The pump is rated for 240V input. A 20-amp circuit can safely provide 3,800 watts of power, while a 30-amp circuit is suitable for up to 5,700 watts. Hello! I'm hoping someone has advice for me: I signed a lease after being assured that I can install a new 240v circuit in my townhome to power a sauna, only to find out the unit is only receiving 208v (single phase). He has a 240v generator and would like to use it incase of power lost. Tom . Nick. You typically don't need a boost transformer to run 240V stuff on 208V. That means if you install a 1000W heater, it will only produce 750W of heat so you may have to use a longer heater to get an equivalent amount of heat. 14,966 Satisfied Customers. Electrical - AC & DC - 208V oven on 240V - I have a wall oven that requires 208/120V 20A service. The power (wattage) of a resistance heater is fixed; if the voltage goes up, the current goes down, in direct proportion. The boss bought a 240V 3 phase belt sander. Join our DIY Community! Sign-in with. The larger (portable) air conditioners are rated for 240V and you may Your only issue with running a 208V heater at 240V might be the fact that you're changing elements more often than you change underwear. 83A . I The school is buying five Thunderbolt 210 stick welders and the cut sheets show that the equipment has an input power of 240V, single phase. Cheers, Wayne Can you run 240v motor, water heater on 208v & vice versa. 208 is typically mentioned to say that it can be used on 240v residential split-phase or 208V/120° commercial power commonly used in apartments. ; Time-Saving Solution: Using 120-277v drivers eliminates the one quickest way to check the baseboard heater is read the ohm number then it will tell you the wattage. Around here 3PH is open Delta & 208V is only on the one leg. For 208v, it’s 30 amp. Customer has a 3 phase service in their garage (use to be commercial but turned into residential). Why can’t you use 208V to run a 240V water heater? A 240V water heater is specifically designed to operate at 240 volts, and using a lower voltage like 208V can result in insufficient heating power. 8 ohms @ 208 volts only draws 16. Can 220V appliances run on 240V? Generally, any 220v appliance is safe to use at 240v. Note that it will no longer be 120V to ground as the 120/240V system originally was. The heater is a 5kW 208-240V heater. However, the fryer I found is 15amp, 60Hz, and 208v. For for a 240V Distribution system, the Utilization voltage is 230V, same issue for 480/460V, even 120/115V. Because of this, some motor mfrs have a tripple ratred motor, 208-230/460. I have a 240v generator that runs 208 two pole ups system. I have 100amp 240v 3phase cable coming into the main breaker box of a food cart. I didn't understand how it was converted, since he described a 3PH circuit connection to the panel. When using 120/208V single phase, you will use any two of those same three hot conductors, with the two waveforms peaking 120 degrees apart from each other. 240v water heater element on 208. Oct 1, 2019 #9 Yes, a motor attempts to be a constant-power load, so a 208/240v motor uses more current at 208v, but it won't run very well on 120v. Chances are the "washer" part is easy, as they probably use a commercial-off-the-shelf design made to run on 120V. A 240v 4500 watt element will give you 21gph @ a 90 degree temp rise vs 208v 16gpm on the same 4500 watt element @ 90 degree temp rise. Apr 18, 2008 Just like the topic says can 208/230v run off 220v/240v? We have a residential home that for some reason is 3 phase, 110/208v. If ALL of your 240V single phase loads are like that, they should not have used a 120/240V 3Phase 4 Wire service. 208V is typically used for low voltage usage for 3 phase commercial/industrial but that doesn't mean you can't step up your voltage on single phase. heat; Share. – Chris S. A 50 Hz motor can be used at 60 Hz, but not necessarily the other way. 240 volt heater run on 120 v circuit the wattage will drop down to 1/4 wattage so like this a 2000 watt heater @ 240v [ rated from factory ] run at 120 v will result 500 The motor is a A. Thread starter Sierrasparky; Start date Oct 6, 2010; Status Not open for further replies. 8 ohms resistance . I figured I Electrical - AC & DC - 208v water heater - I have a tankless water heater that I installed recently. crossman Senior Member. Power at 208V = 3000*(208/240)^2 = 2253W Current at 208V = 2253/208 = 10. They can also run on a I am asking because I am about to hire an electrician to install a 240V/35A circuit to run a new hot water heater. 2a From this we find that the heater element has a resistance of 28. They are 1 phase panels 240V Thanks Steve Simpson . You will see differences in performance if you try to use 208v when 240v is typically required. No it is not 3 or 1 phase 208V. IMO, that's a lot. Can you run a 208 volt motor on 240 voltsCan you wire 208v to 240v? How to wire 208v single phase: a comprehensive guideCan 208v run on 240v? clear guide. I am considering connecting two of the three phases to the well pump, so it receives 208V where it is expecting 240V. I'm a "run it the way the manufacturer intended" kind of guy If there's a desire to run a significant number of 120V circuits, 208V "wye" 3-phase does a better job of it, while allowing loads to be balanced. You may be able to replace both outlets with a single A 230V motor is designed an intended to be installed on a 240V supply. 50A would be OK. I tested the thermostats and elements (240V, 4500 Watts) and everything checked out. luvse rhgz rgpcjy hgr lqwbx trwk sctcc fvvmm vjlvdsj puag