A frequent question in this forum and others is, what is the "standard" voltage in one country or another. This FAQ will attempt to collect this information in one place. Since there are many easy to find websites showing residential voltages, this will be primarily for industrial voltages. If there is enough demand (and time) in the future, I may add residential as well.
This is meant to be a collaborative effort of many members, and requires input of anything that you don't see here, or correction if you see a glaring error. Keep in mind however; just because you have not seen something in your country does not mean it does not exist, someone else may have contributed it. I will not challenge any input up front, but if a preponderance of evidence shows me that someone's suggestion was in error, I will edit it accordingly. As the originator, I will be the only one able to edit, but I am not a benevolent dictator, just a facilitator. To send a comment for inclusion or modification, use the link at the end of this FAQ to "Send a comment to the author". I will take care of formatting.
Remember, this is always a work in progress.
3 phase Low Voltage USA: All 60Hz
Official / Common: (quasi-official, it can vary from one utility to another)
480Y277*
480 delta*
240/120 4wire center tap ("red leg") delta*
208Y120*
240 delta
Defacto / Legacy:
600V delta (isolated areas)
480V corner gounded delta
440 delta
200Y115
240 open delta
240 corner grounded delta
3 phase Medium Voltage USA: All 60Hz
Official / Common: (quasi-official, it can vary from one utility to another)
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Metal 3D printing has rapidly emerged as a key technology in modern design and manufacturing, so it’s critical educational institutions include it in their curricula to avoid leaving students at a disadvantage as they enter the workforce. Download Now
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now
Talk To Other Members
