Rick25. Not remembering that your outlet strip is providing 208V/240V, you plug in the device. 208V three phase is obtained by taking two legs of three-phase power. This varies greatly depending on local codes, electrical requirements, and the age of the building. The wild leg (B) to neutral/ground (D) measures 208v. Ideally, they'd come from separate UPSes. Black and white in the cable are both being used as hots, with 240v between them. How Do I Know If I Have 120V Or 240V? Email Sales. Make-Before-Break Maintenance Bypass Switches If you see a single breaker switch like the one shown in the picture below, you likely have 120V. A 240v circuit will have both wires connected to a double pole breaker. So the questions I have are:Can 208V work in a 240V outlet? 208V 3 Phase power has 3 electrical legs (phases) evenly spaced in a circle (360 degrees / 3 phases = 120 degrees) around a center (neutral). Do all electric ovens cooktops ranges and clothes dryers operate on 208v as well as 240v? Actually this type of connection is intended to provide lightning power - exactly what you are looking for. They require 2 hots and a ground on the input, and 2 hots and a ground on the output. All rights reserved Any appliance that is rated for 240 volts and can also be used on a 220V or 208V outlet. 240 - 24 is 216, obviously not within the 208 volts you say you have. This is what everyone is talking about; the white wire simply needs to be moved to the neutral terminal bar in the breaker panel. The reason it's 240V is because that's the power line that has been standardized over here. Is it 120/240 Single Phase, 120/208 Three Phase or 277/480v Three Phase?EDIT: This looks like it's what you would use. Everything is 120V from the servers to the outlets. After reading comment I have noe a need to know more. Pinterest. its a huge difference. Most AC motors are built to tolerate a 10% variation from nameplate … However, just because that is the building supply doesn't mean you have three phase in your apartment. This will make it a 120v circuit. The 20 or 30 refers to the ampacity, and a trailing "R" or "P" indicates a receptacle or plug.A quick look at the literature shows the unit is probably a three-phase input with three-phase output of 208/120. I would definitely be using the 208v circuits whenever possible. An quick internet search reveals several sources that all say no, but I am concerned that the people answering the question don't know what they are talking about - as … If 120v is required, the neutral must be ran since 120v is phase-to-neutral. Had a guy ask me what differences are between the 3 208/220/240. That's what I installed in my commercial location. In respect to this, is 208 volts the same as 240 volts? Locate the breaker in your electrical panel that is connected to your thermostat. 230/208v also have a harder time starting up, and they may produce a problematic voltage drop more often when connected to 208v. And 16a is as much as you got!Never neglect the derates and the halfsies if you value fault-tolerance and redundancy. to a rack - call one "A" and one "B". Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! If your handyman does not know this you need to get another handy man. Actually this type of connection is intended to provide lightning power - exactly what you are looking for. You still need to move the white from the double pole breaker to the neutral buss. Also to make sure I am not misunderstanding since this is three phase each outlet on the PDU get's it's own phase, giving 20A per phase? As I started to answer him, I realized I could not answer him with an answer that was understandable for a green guy. A couple of years ago I removed a baseboard heater from my basement. All line to line measurements (A-B, B-C, C-A) are 240v. How Do I Know If I Have 120V Or 240V? Do NOT try to manufacture your own three phase power.Doing so can damage any equipment which requires three phase power.Do do this properly you need a three phase converter (aka Rotary Phase Converter). )L21-20 or L21-30 are three phase 20a and 30a, respectively. Ars may earn compensation on sales from links on this site. ( it may actually read as 250, still would mean you have 240v service). How to Know If A Level 2 Charger Is Really Worthwhile for You Do I need to reduce voltage to the grinder to … Of course, having a 480-480v 3-phase UPS systems makes this easy.Generally speaking, higher voltage is more efficient, and also cuts roughly in half the number of circuits you need to provide a given amount of power.Typical connectors are: 5-15/5-20, L5-20/30, L6-20/30.5-15 is standard 15a 110v outlet. The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Condé Nast. You also need to install a breaker blank to close off the unused opening. Anyone have an easy answer for this, or maybe a good read explaining it? I ask this question more out of curiosity than a need to use it. To this point I've mainly dealt with branch circuits and I'm still pretty new to that, so I don't know much about service entry. Answers based on the National Electrical Code. About the Driver Shown in the Photo Above Do NOT try to manufacture your own three phase power.Doing so can damage any equipment which requires three phase power.Do do this properly you need a three phase converter (aka Rotary Phase Converter). Hooking up the wrong voltage heater can be dangerous! That would depend on local … You should never assume that you know the voltage amount without checking. Right now the way the server room is racked up it's pretty inefficent. When these multi-unit buildings are constructed, do the developers actually specify and insist on 208 V. appliances or do they just , have four-conductor cables from the main panel that add a second live wire (red) and the voltage between the live wires is 240V (or 230V - it's the same thing and it's never exactly 230 or 240 anyhow). Damn things will *not* die and the customer wants to run them until they drop. Many industrial machines use three phase power (wood shop and other tools). The cable should have the guage (such as 14/2 or 12/2) stamped on the sheath of the cable. They require 2 hots and a ground on the input, and 2 hots and a ground on the output. And keep in your mind the current drawage will be somehow higher than 208 volt circuit so that why I mention to see the nameplate to show the voltage rating and if it say 208-240 volts then you are fine but watch the wattage … Some countries have 120 V the others have approx. Ah makes sense. I am looking at a grinder and have a question regarding the power requirements. three-phase 208V supply. So, IF you have a neutral (not a ground, but a neutral) running to the outlet, then yes, you can go from one of the two or three hots that are feeding the … … End goal is to get more amperage to the racks.So I am not power savvy here when it comes to 240V/208V/120V. How do I tell if my system is pumping 2 phases into the grid when it is working.