At a reduced voltage, the ballast will likely be unable to start or maintain the arc required for proper operation of the lamp. Hereof, will a 240v stove work on 208v? If you can specify how many BTU/Hr. This is the process of confirming the suitability of one product for another. At 208v, the 240v equipment will operate at about 86% of its rating. You can’t get it directly, though there’s a lot of equipment rated for 240V (usually specified at 230V) operation, that will still function at 208V, though it will produce 25% less power at that voltage. Copyright 2020 FindAnyAnswer All rights reserved. Most devices designed for 220, The most common commercial building electric service in North America is 120/, When it comes to electricity usage, an electric. Sometimes the nameplate will state 208-240v as acceptable voltage ranges. Likes: 0. The nominal voltage is 240 volt, but homes may have 208V, 220V, or 240V power supply. [FONT="]240V/60Hz/3Phase power and 7.5KW .How can I make this work without killing the motor.[/FONT]. Anyone see anything wrong with a buck boost for this or am I giving the correct statement? with. The motor business is really tough now. View Profile View Forum Posts Plastic Join Date Nov 2016 Country UNITED STATES State/Province Colorado Posts 7 Post Thanks / … or total watts the element needs to be, I may be able to recommend a cheap big box home center solution. Each leg (phase) provides power (phase voltage) at a unique angle (phase angle) to the center (neutral). It's pretty rare that either of these voltages are not interchangeable. Correspondingly, will a 240v stove work on 208v? That's because if you have a motor designed for 230V 50Hz and give it 60Hz, it spins 20% faster, but produces 17% less torque. plate on dryer does not specifi 208 volts.It says 240volt. As stated above, a good part of the time, the motors are OK with either 208 or 240. 208V is what you get from 240V power in a 3-phase “Wye” system. 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. Likewise, will a 230v motor run on 208v? If cost effective, rewind the motor for 208V. So, a 230 volt motor can operate as low as 207 volts. #2-May burn out quicker (go bad quicker being on a 240V circuit). Brook-Compton motors, from your neck of the woods, used to do that, but I haven't seen or heard from them in years. You must log in or register to reply here. Their real design is actually 230V 50Hz, then they will often say "50/60Hz" based on a slight de-rating of the mechanical power (kW) of the design. The web page for each product will list a nominal input voltage, and if any other input voltages are acceptable they will be listed as ""Other Input Voltages"". The load torque demand is the same at the same speed, so the current will adjust itself at 115% of what was planned to be pulled by the load originally. 208V or 240V power supplied to the outlet; Answer: Wolf has no way to determine what the supplied electrical service is. You can get PDUs that split the circuit up to even out the load, with 2 PDUs and 2 240/208v … This motor was built to be used on 240V system. A quad tap ballast would be marked 120v, 208v, 240v, 277v and would have to be set up for the correct line voltage. You should boost it to be safe. 120/240V is a 240V single phase supply, center tapped to produce a "split phase" with 120V between either side to neutral, and 240V between the two hot lines. Here is a clear and simple explanation of understanding the differences between 120v single phase, 240v Split Phase, and 208v 3-phase from Academy Fellow Keinokuorma:There have been multiple threads discussing this electrical topic. Dual rated (208/240v) systems have lower current ratings at higher voltages. 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. This motor was built to be used on 240V system. Googling around, I … already had two different answers for this,what do you pros say ? Since you say that your motor is rated in kW instead of HP, it's likely that it is an IEC motor, and even if it says "50/60Hz" on it, there will be no added lower tolerance. Sketch 8C. Taking into account the price difference of a … #3-It is safe to use on a 240V circuit. Most modern devices can support this, but you must check the nameplate of each device to be powered. Utilities, who supply the distribution voltage, are supposed to maintain a +-5% range. I am aware that you can operate a 240V dryer on 208V, but the heating element will operate at 20% less capacity than at the higher voltage. 208V 3 Phase Power. UK, and Ireland have always been 415Y/240. 240V/60Hz/3Phase power and 7.5KW .How can I make this work without killing the motor. 208V is what you get from 240V power in a 3-phase “Wye” system. Click to see full answer Subsequently, one may also ask, can you run a 208 volt motor on 240 volts? The question asks about substitution. How many amps is a 50 kva transformer good for? Typical Arrangement of Meter on Building. It looks like it is necessary to break this equipment into a 240V type and a 208V type, is that true? Any appliance that is rated for 240 volts and can also be used on a 220V or 208V outlet. The Machine is made in China for Use In North America.It's been delivered. The nominal voltage is 240 volt, but homes may have, 220-230-240 (depends on utility) is the standard nominal 1-phase voltage across both legs of the line (120 nominal being the voltage from either leg to neutral). Can I connect this to a 208V … The motor nameplate voltage would be shown as the "utilization voltage" and will say 230V, or better yet, "208-230V". Motors are rated for 10% over or under the nameplate voltage listed on the motor. LED drivers and fluorescent ballasts marked with a dash between the voltage will function in that range. However, this IEC design is NOT typically suitable for operation on 208V, it is something that IEC motor designers do not have to think about. Flux is reduced to 208/240=200/230=86.7%. If heaters (Warren) are rated for 208V, why would a 240V system not work? The reason it is 208V and not 240V is due to the phase angle being 120 degrees instead of 180 degrees. The idea is based on the concept that 208V tends to be used in smaller facilities where the distance from service entrance to load is relatively shorter, so there is less voltage drop, and that true 240V 3 phase supplies tend not to drift upward very often or very much. These sketches provide rules for three-phase underground (208V-240V) service. Examples include ranges, heaters, etc. Isnt most of Belgium or any super old Euro network 3x230 volts (230Y/133 no neutral). Results 1 to 3 of 3 Thread: Run 208V motor on 240V? Re: 240V Dryer On 208V It will be fine, starting torque will be a little weaker but typically that's more of an issue with washers. 208v 230v 240v electricity three phase That lets you get 120V between any phase leg and neutral and 208V between any two phase legs. with a 50/60Hz frequency stamp. GENERALLY, responsible motor manufactures do not list the motor voltage as "240V", that is what is referred to as the "distribution voltage". JavaScript is disabled. 208 volts is derived from a three phase network. Typically, residential homes have 240 V service, and commercial and high-rise buildings have 208 V service. Helping a buddy try to avoid a $1000 mistake. Even though the system voltage of 3 phase 208 is within the -10% rating of the three phase 230 v motor, the 208 is allowed to vary to -10% or 187 volts -- and the motor will not work at that level. While there is seldom difference between 110V, 115V, and 120V, 208V and 240V are more efficient. What's the difference between Koolaburra by UGG and UGG? Show Printable Version; 11-07-2018, 06:30 PM #1. venison. Building supplies 208V but equipment is designed to run on Power Supply of, It will probably work but it is not the most efficient way to go and it will probably affect the motors life. In Euroland neither 60Hz nor 240V 3-phase is common. Again responsible motor mfrs, ie those who follow NEMA guidelines when designing for use in North America, will have an acceptable voltage variance of +-10% minimum, without appreciable loss of torque. When one waveform is at its peak, measuring 120V, the other is only part of way through its cycle, measuring only 88V. A very common decision is to "band-aid" the 208V to make 240V and keep operating the old equipment until it fails. Torque is current X flux. Warren is proud of their duct heaters. The control transformer could very likely be connected 240 as well. If it's connected 208, it most likely has a tap for 240. These are, again, assumed generalities and there are always exceptions. 208V 3 Phase power also goes by the names 208V 3 Phase 4 Wire and 208Y/120V. Asked By: Aguila Dotes | Last Updated: 26th May, 2020, Most cooking appliances are rated at 240 volt. Large pedestal and rack mount servers normally use 208V. 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. Since a standard three phase motor can be 200 or 230V, most know that 230V is no good for 208V nominal systems, and Tom quoted 110.4 which doesn't permit a 200V on a 208V system, what's a person to do? Hi, I could use some advice on the subject of equipment that can connect to either 208V or 240V, which is pretty common. As you mentioned there are no cheap controllers for 240V. For example, 120v-277v will operate on any voltage between 120v and 240v. If the loads are resistive, the equipment is rated at 240V, and the supply is 208V, the resistive loads would be approximately 75 percent of the rated wattage. Specifications for underground service are at the bottom of the page. So under almost all (typically 90%+) of everything you run in your home or shop will support being run at 208v (which is associated with a three phase generator output). What cars have the most expensive catalytic converters? That lets you get 120V between any phase leg and neutral and 208V between any two phase legs. That lets you get 120V between any phase leg and neutral and 208V between any two phase legs. Many HID ballasts are equipped with multiple taps to allow for operation at 120V, 208V, 240V, 277V, or 480V. Most cooking appliances are rated at 240 volt. Scenario. Meter panel installation for use in conjunction with instrument transformer metering. Unfortunately, motors designed for use in other parts of the world are generally NOT inclusive of 208V 3 phase, because that exists nowhere but here in North America. The motor nameplate voltage would be shown as the "utilization voltage" and will say 230V, or better yet, "208-230V". … If the 240 volt device is connected to a 208 volt supply the following condition happens. Using the same 6000 watts on 240 volts the resistance is calculated to be R = E (squared)/W = 9.6 ohms. SKETCH # DESCRIPTION; Sketch 7B. Thread Tools. As you would expect, if the two waveforms were coincidental (peaked at the same time), you would add both 120V peaks together to get 240V. So the motor is designed for the greater power rating, but is nameplated at the lower one and given the "50/60" label, usually without the back story details because the 60Hz rating is still valid, it will just actually be capable of slightly more kW at 50Hz than what they list and that's OK. Dec 20, 2010 Connect (1) Neutral wire to the Neutral Bar. The single-phase voltage from the generator is 240V, and the equipment is rated at 208V, which, again, would be an NEC violation. Mains electricity by country includes a list of countries and territories, with the plugs, voltages and frequencies they commonly use for providing electrical power to low voltage appliances, equipment, and lighting typically found in homes and offices. Why Is The Difference Between 208V Power and 230V Power Important? The dryer still uses 120 volts for the motor and the controls, by the the use of the neutral. (For industrial machinery, see industrial and multiphase power plugs and sockets. But I swear in Belgium they still are kicking some 230 L-L. 2 options: 208 to 240 volt transformer or a low price option would be a buck boost. 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. Run 208V motor on 240V? 120/208V is two phases from a three-phase supply. I think with expected voltage drop, you could use judgement, since of course we do place 200V motors on 208V systems. What is the difference between 240v and 208v? In this case it is about electricl compnents, and the suitabilty of a 2-pole circuit breaker, to function in a 3-phase panel. #1-OK to run the 208V heater on the 240V circuit. I agree, but what we see over here from IEC motor mfrs is often a version that gets a different nameplate (maybe an export version?) This is a NEMA requirement. There is 120V from either phase to neutral, and 208V between the phases. The sum of the two is 208V. running 1 208v or 240v circuit to your rack gives you 2 120v circuits. Came up today to a question,if a 240volt dryer can use 208volt to use.The spec. 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. operate on full-power at 208V instead of 240 V? This is nearly 13% under, hence the need for a 13.3% boost xformer. You will see differences in performance if you try to use 208v when 240v is typically required. 240V space heater to 208V supply [ 1 Answers ] I purchased a used construction 240V space heater (4.8KW) 12/2 cabtire wiring (rated 20A). The dryer is likely to run longer to get the clothes to dry. This leaves a large number of pieces of 240V HVAC equipment incompatible with the new 208V system. Connect (1) 120V 1 Phase power wire to the 1 Pole CB. Most cooking appliances are rated at 240 volt. Discuss please. You will see differences in performance if you try to use 208v when 240v is typically required. Does Hermione die in Harry Potter and the cursed child? )Some countries have more than one voltage available. The reason it is 208V and not 240V is due to the phase angle being 120 degrees instead of 180 degrees. It is possible, but undesirable, to install small 120/240V transformers. GENERALLY, responsible motor manufactures do not list the motor voltage as "240V", that is what is referred to as the "distribution voltage". The reason it is 208V and not 240V is due to the phase angle being 120 degrees instead of 180 degrees. Using a 208v ""T"" unit in a 220/230/240v environment is not supported or recommended. Since the fixture is rated at a line-to-line voltage (240V), I am assuming that it uses an HID lamp. Thanks everyone. #4-Being placed on a 14/2 with ground at 1,000 watts, 2 pole 15amp breaker. Also, im trying to help the client establish a price effective installation. Are they still in business? 208V is what you get from 240V power in a 3-phase “Wye” system. Therefore, the 208V elements will likely fail on 240V and that failure may be spectacular (very dangerous). Okie Go Balls Deep. If so, maybe they just backed off on North America once the Chinese began flooding our market and eroded profits. For a better experience, please enable JavaScript in your browser before proceeding. 208V 3 Phase power has 3 electrical legs (phases) evenly spaced in a circle (360 degrees / 3 phases = 120 degrees) around a center (neutral). What is the difference between 208v and 230v?
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